2.7.2

examples/full_buffer/FPS/FPS.ino

@@ -195,6 +195,7 @@
 //U8G2_UC1701_EA_DOGS102_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_F_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);

examples/full_buffer/GraphicsTest/GraphicsTest.ino

@@ -79,6 +79,7 @@
 //U8G2_UC1701_EA_DOGS102_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_F_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);

examples/full_buffer/HelloWorld/HelloWorld.ino

@@ -78,6 +78,7 @@
 //U8G2_UC1701_EA_DOGS102_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_F_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);

examples/full_buffer/PrintUTF8/PrintUTF8.ino

@@ -81,6 +81,7 @@
 //U8G2_UC1701_EA_DOGS102_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_F_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);

examples/full_buffer/SelectionList/SelectionList.ino

@@ -78,6 +78,7 @@
 //U8G2_UC1701_EA_DOGS102_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_F_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);

examples/full_buffer/U8g2Logo/U8g2Logo.ino

@@ -79,6 +79,7 @@
 //U8G2_UC1701_EA_DOGS102_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_F_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);

examples/page_buffer/DirectAccess/DirectAccess.ino

@@ -0,0 +1,231 @@
+/*
+
+  DirectAccess.ino
+  
+  Demonstrate how to interact with the internal buffer directly
+  Warning: This example will not work with all graphics controller.
+  It will work with SSD13xx, UC1xxx, ST7656 controller
+  It will definitly not work with ST7920, T6962, RA8835.
+
+  Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
+
+  Copyright (c) 2016, olikraus@gmail.com
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without modification, 
+  are permitted provided that the following conditions are met:
+
+  * Redistributions of source code must retain the above copyright notice, this list 
+    of conditions and the following disclaimer.
+    
+  * Redistributions in binary form must reproduce the above copyright notice, this 
+    list of conditions and the following disclaimer in the documentation and/or other 
+    materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
+  CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
+  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
+  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
+  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
+  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
+  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
+  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
+
+*/
+
+#include <Arduino.h>
+#include <U8g2lib.h>
+
+#ifdef U8X8_HAVE_HW_SPI
+#include <SPI.h>
+#endif
+#ifdef U8X8_HAVE_HW_I2C
+#include <Wire.h>
+#endif
+
+/*
+  U8glib Example Overview:
+    Frame Buffer Examples: clearBuffer/sendBuffer. Fast, but may not work with all Arduino boards because of RAM consumption
+    Page Buffer Examples: firstPage/nextPage. Less RAM usage, should work with all Arduino boards.
+    U8x8 Text Only Example: No RAM usage, direct communication with display controller. No graphics, 8x8 Text only.
+    
+  This is a page buffer example.    
+*/
+
+// Please UNCOMMENT one of the contructor lines below
+// U8g2 Contructor List (Picture Loop Page Buffer)
+// The complete list is available here: https://github.com/olikraus/u8g2/wiki/u8g2setupcpp
+// Please update the pin numbers according to your setup. Use U8X8_PIN_NONE if the reset pin is not connected
+//U8G2_SSD1306_128X64_NONAME_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
+//U8G2_SSD1306_128X64_NONAME_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 12, /* dc=*/ 4, /* reset=*/ 6);	// Arduboy (Production, Kickstarter Edition)
+//U8G2_SSD1306_128X64_NONAME_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
+//U8G2_SSD1306_128X64_NONAME_1_3W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* reset=*/ 8);
+//U8G2_SSD1306_128X64_NONAME_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* reset=*/ 8);
+//U8G2_SSD1306_128X64_NONAME_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE);   // All Boards without Reset of the Display
+//U8G2_SSD1306_128X64_NONAME_1_6800 u8g2(U8G2_R0, 13, 11, 2, 3, 4, 5, 6, A4, /*enable=*/ 7, /*cs=*/ 10, /*dc=*/ 9, /*reset=*/ 8);
+//U8G2_SSD1306_128X64_NONAME_1_8080 u8g2(U8G2_R0, 13, 11, 2, 3, 4, 5, 6, A4, /*enable=*/ 7, /*cs=*/ 10, /*dc=*/ 9, /*reset=*/ 8);
+//U8G2_SH1106_128X64_NONAME_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
+//U8G2_SSD1306_128X32_UNIVISION_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ 21, /* data=*/ 20, /* reset=*/ U8X8_PIN_NONE);   // Adafruit Feather M0 Basic Proto + FeatherWing OLED
+//U8G2_SSD1306_128X32_UNIVISION_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE);   // Adafruit Feather ESP8266/32u4 Boards + FeatherWing OLED
+//U8G2_SSD1306_128X32_UNIVISION_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);   // Adafruit ESP8266/32u4/ARM Boards + FeatherWing OLED
+//U8G2_SSD1306_64X48_ER_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);   // EastRising 0.66" OLED breakout board, Uno: A4=SDA, A5=SCL, 5V powered
+//U8G2_SSD1322_NHD_256X64_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);	// Enable U8G2_16BIT in u8g2.h
+//U8G2_SSD1322_NHD_256X64_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);	// Enable U8G2_16BIT in u8g2.h
+//U8G2_SSD1325_NHD_128X64_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
+//U8G2_SSD1325_NHD_128X64_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
+//U8G2_LD7032_60X32_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 11, /* data=*/ 12, /* cs=*/ 9, /* dc=*/ 10, /* reset=*/ 8);	// SW SPI Nano Board
+//U8G2_LD7032_60X32_1_4W_SW_I2C u8g2(U8G2_R0, /* clock=*/ 11, /* data=*/ 12, /* reset=*/ U8X8_PIN_NONE);	// NOT TESTED!
+//U8G2_UC1701_EA_DOGS102_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
+//U8G2_UC1701_EA_DOGS102_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
+//U8G2_ST7920_192X32_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_192X32_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
+//U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
+//U8G2_ST7920_128X64_1_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);
+//U8G2_ST7565_EA_DOGM128_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
+//U8G2_ST7565_EA_DOGM128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
+//U8G2_ST7565_NHD_C12832_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
+//U8G2_ST7565_NHD_C12832_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
+//U8G2_T6963_240X128_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RD with +5V, FS0 and FS1 with GND
+//U8G2_T6963_256X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RD with +5V, FS0 and FS1 with GND
+//U8G2_SED1330_240X128_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect /RD = E with +5V, enable is /WR = RW, FG with GND, 14=Uno Pin A0
+//U8G2_SED1330_240X128_1_6800 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7,  /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // A0 is dc pin, /WR = RW = GND, enable is /RD = E
+//U8G2_RA8835_NHD_240X128_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect /RD = E with +5V, enable is /WR = RW, FG with GND, 14=Uno Pin A0
+//U8G2_RA8835_NHD_240X128_1_6800 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7,  /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // A0 is dc pin, /WR = RW = GND, enable is /RD = E
+//U8G2_UC1608_ERC24064_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // SW SPI, Due ERC24064-1 Test Setup
+//U8G2_UC1610_EA_DOGXL160_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/  U8X8_PIN_NONE);
+//U8G2_UC1610_EA_DOGXL160_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/  U8X8_PIN_NONE);
+//U8G2_UC1611_EA_DOGM240_1_2ND_HW_I2C u8g2(U8G2_R0, /* reset=*/ 8);	// Due, 2nd I2C, DOGM240 Test Board
+//U8G2_UC1611_EA_DOGM240_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);   // SW SPI, Due DOGXL240 Test Board
+//U8G2_UC1611_EA_DOGXL240_1_2ND_HW_I2C u8g2(U8G2_R0, /* reset=*/ 8);	// Due, 2nd I2C, DOGXL240 Test Board
+//U8G2_UC1611_EA_DOGXL240_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);   // SW SPI, Due DOGXL240 Test Board
+
+
+
+
+
+// End of constructor list
+
+uint8_t background_images[8][32];
+
+void setup(void) {
+  uint8_t i;
+  /* U8g2 Project: SSD1306 Test Board */
+  //pinMode(10, OUTPUT);
+  //pinMode(9, OUTPUT);
+  //digitalWrite(10, 0);
+  //digitalWrite(9, 0);		
+
+  /* U8g2 Project: T6963 Test Board */
+  //pinMode(18, OUTPUT);
+  //digitalWrite(18, 1);
+
+
+  u8g2.begin();
+  u8g2.setFlipMode(0);
+
+  u8g2.setFont(u8g2_font_chroma48medium8_8r);
+  u8g2.setFontPosBottom();
+  
+  // create eight images for a background animation
+  for( i = 0; i < 8; i++ ) {
+    // setup buffer by starting with the first page
+    u8g2.firstPage();
+    // render some graphics into the buffer
+    u8g2.drawStr(0-i,8,"U8g2U");
+    // store four tiles from the start of the buffer content in some local memory
+    // one tile has 8x8 pixel: 8 bytes, four tiles are 32 bytes.
+    // note: the actual memory pattern depends on the target display
+    memcpy(background_images[i], u8g2.getBufferPtr(), 32);    
+  }
+
+  // revert back to basline pos
+  u8g2.setFontPosBaseline();
+
+}
+
+void drawBackground(uint8_t image_idx)
+{
+  u8g2_uint_t src_idx, dest_idx, total;
+  uint8_t *buf;
+  
+  total = u8g2.getBufferTileWidth();
+  total *= 8;	// calculate width in pixel
+  
+  // get the pointer to the buffer. We will write the image to that buffer
+  buf = u8g2.getBufferPtr();
+  
+  // fill the buffer with the background image
+  // repeat the image until the complete width is filled
+  src_idx = 0;
+  for( dest_idx = 0; dest_idx < total; dest_idx++ )
+  {
+    buf[dest_idx] = background_images[image_idx][src_idx];
+    src_idx++;
+    if ( src_idx >= 32 )
+      src_idx = 0;
+  }
+}
+
+void drawLogo(void)
+{
+    u8g2.setFontMode(1);	// Transparent
+
+    u8g2.setFontDirection(0);
+    u8g2.setFont(u8g2_font_inb24_mf);
+    u8g2.drawStr(0, 30, "U");
+    
+    u8g2.setFontDirection(1);
+    u8g2.setFont(u8g2_font_inb30_mn);
+    u8g2.drawStr(21,8,"8");
+        
+    u8g2.setFontDirection(0);
+    u8g2.setFont(u8g2_font_inb24_mf);
+    u8g2.drawStr(51,30,"g");
+    u8g2.drawStr(67,30,"\xb2");
+    
+    u8g2.drawHLine(2, 35, 47);
+    u8g2.drawHLine(3, 36, 47);
+    u8g2.drawVLine(45, 32, 12);
+    u8g2.drawVLine(46, 33, 12);
+    
+}
+
+uint8_t image_idx = 0;
+uint8_t dir = 0;
+
+void loop(void) {
+
+  // buffer clear is not required any more 
+  // this increase performance a little bit
+  u8g2.setAutoPageClear(0);	
+
+  // draw the U8g2 logo with a custom background
+  u8g2.firstPage();
+  do {
+    drawBackground(image_idx);
+    drawLogo();
+  } while ( u8g2.nextPage() );
+  
+  // move the background around
+  if ( dir == 0 ){
+    image_idx++;
+    if ( image_idx == 7 ) {
+      dir = 1;
+    }
+  } else {
+    image_idx--;
+    if ( image_idx == 0 ) {
+      dir = 0;
+    }
+  }    
+  
+  delay(10);
+}
+

examples/page_buffer/ExtUTF8/ExtUTF8.ino

@@ -80,6 +80,7 @@
 //U8G2_UC1701_EA_DOGS102_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_1_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);

examples/page_buffer/FPS/FPS.ino

@@ -165,6 +165,13 @@
   Issue #79:
   U8G2_SSD1306_128X32_UNIVISION_1_HW_I2C Atmega32U8     Clip=15.7 Box=26.6  @=5.3 Pix=8.4
 
+  26.Nov 2016
+  U8G2_ST7920_128X64_1_8080				Uno			Clip=13.5 Box=12.1  @=3.6 Pix=5.9		atmega&arduino optimized
+  U8G2_ST7920_128X64_1_SW_SPI 				Uno			Clip=12.9 Box=11.0  @=3.5 Pix=5.4			issue 87
+  U8G2_SSD1306_128X64_NONAME_1_4W_SW_SPI	Uno			Clip=21.7 Box=46.8  @=4.0 Pix=7.1			
+  U8G2_SSD1306_128X64_NONAME_1_4W_HW_SPI	Uno			Clip=25.8 Box=84.2  @=4.2 Pix=7.8			
+  U8G2_SSD1306_128X64_NONAME_1_8080		Uno			Clip=16.1 Box=29.1  @=3.9 Pix=6.6		
+  U8G2_SSD1306_128X64_NONAME_1_6800		Uno			Clip=6.8 Box=8.4  @=2.9 Pix=4.3			6800 mode is not yet optimized for Atmega		
 */
 
 
@@ -205,6 +212,7 @@
 //U8G2_UC1701_EA_DOGS102_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_1_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);
@@ -370,6 +378,17 @@ void show_result(const char *s, uint16_t fps) {
 
 void setup(void) {
   u8g2.begin();
+
+  /* U8g2 Project: SSD1306 Test Board */
+  //pinMode(10, OUTPUT);
+  //pinMode(9, OUTPUT);
+  //digitalWrite(10, 0);
+  //digitalWrite(9, 0);		
+
+  /* U8g2 Project: T6963 Test Board */
+  //pinMode(18, OUTPUT);
+  //digitalWrite(18, 1);
+
   // flip screen, if required
   // u8g2.setRot180();
   

examples/page_buffer/FlipMode/FlipMode.ino

@@ -75,6 +75,7 @@
 //U8G2_UC1701_EA_DOGS102_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_1_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);

examples/page_buffer/GraphicsTest/GraphicsTest.ino

@@ -80,6 +80,7 @@
 //U8G2_UC1701_EA_DOGS102_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_1_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);

examples/page_buffer/HelloWorld/HelloWorld.ino

@@ -80,6 +80,7 @@
 //U8G2_UC1701_EA_DOGS102_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_1_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);

examples/page_buffer/PrintHelloWorld/PrintHelloWorld.ino

@@ -81,6 +81,7 @@
 //U8G2_UC1701_EA_DOGS102_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_1_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);

examples/page_buffer/PrintUTF8/PrintUTF8.ino

@@ -81,6 +81,7 @@
 //U8G2_UC1701_EA_DOGS102_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_1_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);

examples/page_buffer/SelectionList/SelectionList.ino

@@ -70,6 +70,7 @@
 //U8G2_UC1701_EA_DOGS102_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_1_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);

examples/page_buffer/U8g2Logo/U8g2Logo.ino

@@ -79,6 +79,7 @@
 //U8G2_UC1701_EA_DOGS102_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_ST7920_192X32_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_192X32_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
+//U8G2_ST7920_128X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);	// Remember to set R/W to 0 
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
 //U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
 //U8G2_ST7920_128X64_1_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);
@@ -118,7 +119,8 @@ void setup(void) {
   /* U8g2 Project: T6963 Test Board */
   //pinMode(18, OUTPUT);
   //digitalWrite(18, 1);
-  
+
+
   u8g2.begin();
   u8g2.setFlipMode(0);
 }

extras/ChangeLog

@@ -56,3 +56,5 @@ https://github.com/olikraus/u8g2 ChangeLog
 2016-xx-xx	v2.7.x	 olikraus@gmail.com
   * Added support for 0.66" 64x48 SSD1306 OLED (issue 89)
   * Support for UC1608 (issue 92)
+  * Speed improvements for SW SPI und 8080 mode (issues 87, 90 and 95)
+  * Fixed issue with ST7920 not using the optimized SW SPI procedures (issue 87)

library.properties

@@ -1,5 +1,5 @@
 name=U8g2
-version=2.7.1
+version=2.7.2
 author=oliver <olikraus@gmail.com>
 maintainer=oliver <olikraus@gmail.com>
 sentence=Library for monochrome LCDs and OLEDs. Successor of U8glib. Features: UTF8, >700 fonts, all Arduino Boards supported 

src/U8g2lib.h

@@ -72,6 +72,9 @@ class U8G2 : public Print
     /* u8x8 interface */
     uint8_t getCols(void) { return u8x8_GetCols(u8g2_GetU8x8(&u8g2)); }
     uint8_t getRows(void) { return u8x8_GetRows(u8g2_GetU8x8(&u8g2)); }
+    void drawTile(uint8_t x, uint8_t y, uint8_t cnt, uint8_t *tile_ptr) {
+      u8x8_DrawTile(u8g2_GetU8x8(&u8g2), x, y, cnt, tile_ptr); }
+    
 
 #ifdef U8X8_USE_PINS 
     /* set the menu pins before calling begin() or initDisplay() */
@@ -148,6 +151,13 @@ class U8G2 : public Print
     void firstPage(void) { u8g2_FirstPage(&u8g2); }
     uint8_t nextPage(void) { return u8g2_NextPage(&u8g2); }
     
+    uint8_t *getBufferPtr(void) { return u8g2_GetBufferPtr(&u8g2); }
+    uint8_t getBufferTileHeight(void) { return u8g2_GetBufferTileHeight(&u8g2); }
+    uint8_t getBufferTileWidth(void) { return u8g2_GetBufferTileWidth(&u8g2); }
+    uint8_t getBufferCurrTileRow(void) { return u8g2_GetBufferCurrTileRow(&u8g2); }
+    void setBufferCurrTileRow(uint8_t row) { u8g2_SetBufferCurrTileRow(&u8g2, row); }
+    
+    void setAutoPageClear(uint8_t mode)  { u8g2_SetAutoPageClear(&u8g2, mode); }
 
     /* clib/u8g2.hvline.c */
     void setDrawColor(uint8_t color_index) { u8g2_SetDrawColor(&u8g2, color_index); }
@@ -322,7 +332,7 @@ class U8G2_SSD1306_128X64_NONAME_1_6800 : public U8G2 {
 };
 class U8G2_SSD1306_128X64_NONAME_1_8080 : public U8G2 {
   public: U8G2_SSD1306_128X64_NONAME_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1306_128x64_noname_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1306_128x64_noname_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -352,7 +362,7 @@ class U8G2_SSD1306_128X64_NONAME_2_6800 : public U8G2 {
 };
 class U8G2_SSD1306_128X64_NONAME_2_8080 : public U8G2 {
   public: U8G2_SSD1306_128X64_NONAME_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1306_128x64_noname_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1306_128x64_noname_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -382,7 +392,7 @@ class U8G2_SSD1306_128X64_NONAME_F_6800 : public U8G2 {
 };
 class U8G2_SSD1306_128X64_NONAME_F_8080 : public U8G2 {
   public: U8G2_SSD1306_128X64_NONAME_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1306_128x64_noname_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1306_128x64_noname_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -466,7 +476,7 @@ class U8G2_SH1106_128X64_NONAME_1_6800 : public U8G2 {
 };
 class U8G2_SH1106_128X64_NONAME_1_8080 : public U8G2 {
   public: U8G2_SH1106_128X64_NONAME_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_sh1106_128x64_noname_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_sh1106_128x64_noname_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -496,7 +506,7 @@ class U8G2_SH1106_128X64_NONAME_2_6800 : public U8G2 {
 };
 class U8G2_SH1106_128X64_NONAME_2_8080 : public U8G2 {
   public: U8G2_SH1106_128X64_NONAME_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_sh1106_128x64_noname_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_sh1106_128x64_noname_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -526,7 +536,7 @@ class U8G2_SH1106_128X64_NONAME_F_6800 : public U8G2 {
 };
 class U8G2_SH1106_128X64_NONAME_F_8080 : public U8G2 {
   public: U8G2_SH1106_128X64_NONAME_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_sh1106_128x64_noname_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_sh1106_128x64_noname_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -610,7 +620,7 @@ class U8G2_SSD1306_128X32_UNIVISION_1_6800 : public U8G2 {
 };
 class U8G2_SSD1306_128X32_UNIVISION_1_8080 : public U8G2 {
   public: U8G2_SSD1306_128X32_UNIVISION_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1306_128x32_univision_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1306_128x32_univision_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -640,7 +650,7 @@ class U8G2_SSD1306_128X32_UNIVISION_2_6800 : public U8G2 {
 };
 class U8G2_SSD1306_128X32_UNIVISION_2_8080 : public U8G2 {
   public: U8G2_SSD1306_128X32_UNIVISION_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1306_128x32_univision_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1306_128x32_univision_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -670,7 +680,7 @@ class U8G2_SSD1306_128X32_UNIVISION_F_6800 : public U8G2 {
 };
 class U8G2_SSD1306_128X32_UNIVISION_F_8080 : public U8G2 {
   public: U8G2_SSD1306_128X32_UNIVISION_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1306_128x32_univision_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1306_128x32_univision_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -754,7 +764,7 @@ class U8G2_SSD1306_64X48_ER_1_6800 : public U8G2 {
 };
 class U8G2_SSD1306_64X48_ER_1_8080 : public U8G2 {
   public: U8G2_SSD1306_64X48_ER_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1306_64x48_er_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1306_64x48_er_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -784,7 +794,7 @@ class U8G2_SSD1306_64X48_ER_2_6800 : public U8G2 {
 };
 class U8G2_SSD1306_64X48_ER_2_8080 : public U8G2 {
   public: U8G2_SSD1306_64X48_ER_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1306_64x48_er_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1306_64x48_er_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -814,7 +824,7 @@ class U8G2_SSD1306_64X48_ER_F_6800 : public U8G2 {
 };
 class U8G2_SSD1306_64X48_ER_F_8080 : public U8G2 {
   public: U8G2_SSD1306_64X48_ER_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1306_64x48_er_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1306_64x48_er_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -898,7 +908,7 @@ class U8G2_SSD1325_NHD_128X64_1_6800 : public U8G2 {
 };
 class U8G2_SSD1325_NHD_128X64_1_8080 : public U8G2 {
   public: U8G2_SSD1325_NHD_128X64_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1325_nhd_128x64_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1325_nhd_128x64_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -928,7 +938,7 @@ class U8G2_SSD1325_NHD_128X64_2_6800 : public U8G2 {
 };
 class U8G2_SSD1325_NHD_128X64_2_8080 : public U8G2 {
   public: U8G2_SSD1325_NHD_128X64_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1325_nhd_128x64_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1325_nhd_128x64_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -958,7 +968,7 @@ class U8G2_SSD1325_NHD_128X64_F_6800 : public U8G2 {
 };
 class U8G2_SSD1325_NHD_128X64_F_8080 : public U8G2 {
   public: U8G2_SSD1325_NHD_128X64_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1325_nhd_128x64_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1325_nhd_128x64_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -1054,19 +1064,19 @@ class U8G2_LD7032_60X32_F_2ND_HW_I2C : public U8G2 {
 };
 class U8G2_ST7920_192X32_1_8080 : public U8G2 {
   public: U8G2_ST7920_192X32_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7920_p_192x32_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7920_p_192x32_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_ST7920_192X32_2_8080 : public U8G2 {
   public: U8G2_ST7920_192X32_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7920_p_192x32_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7920_p_192x32_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_ST7920_192X32_F_8080 : public U8G2 {
   public: U8G2_ST7920_192X32_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7920_p_192x32_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7920_p_192x32_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -1090,7 +1100,7 @@ class U8G2_ST7920_192X32_F_6800 : public U8G2 {
 };
 class U8G2_ST7920_192X32_1_SW_SPI : public U8G2 {
   public: U8G2_ST7920_192X32_1_SW_SPI(const u8g2_cb_t *rotation, uint8_t clock, uint8_t data, uint8_t cs, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7920_s_192x32_1(&u8g2, rotation, u8x8_byte_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7920_s_192x32_1(&u8g2, rotation, u8x8_byte_arduino_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_3Wire_SW_SPI(getU8x8(), clock, data, cs, reset);
   }
 };
@@ -1102,7 +1112,7 @@ class U8G2_ST7920_192X32_1_HW_SPI : public U8G2 {
 };
 class U8G2_ST7920_192X32_2_SW_SPI : public U8G2 {
   public: U8G2_ST7920_192X32_2_SW_SPI(const u8g2_cb_t *rotation, uint8_t clock, uint8_t data, uint8_t cs, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7920_s_192x32_2(&u8g2, rotation, u8x8_byte_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7920_s_192x32_2(&u8g2, rotation, u8x8_byte_arduino_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_3Wire_SW_SPI(getU8x8(), clock, data, cs, reset);
   }
 };
@@ -1114,7 +1124,7 @@ class U8G2_ST7920_192X32_2_HW_SPI : public U8G2 {
 };
 class U8G2_ST7920_192X32_F_SW_SPI : public U8G2 {
   public: U8G2_ST7920_192X32_F_SW_SPI(const u8g2_cb_t *rotation, uint8_t clock, uint8_t data, uint8_t cs, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7920_s_192x32_f(&u8g2, rotation, u8x8_byte_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7920_s_192x32_f(&u8g2, rotation, u8x8_byte_arduino_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_3Wire_SW_SPI(getU8x8(), clock, data, cs, reset);
   }
 };
@@ -1126,19 +1136,19 @@ class U8G2_ST7920_192X32_F_HW_SPI : public U8G2 {
 };
 class U8G2_ST7920_128X64_1_8080 : public U8G2 {
   public: U8G2_ST7920_128X64_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7920_p_128x64_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7920_p_128x64_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_ST7920_128X64_2_8080 : public U8G2 {
   public: U8G2_ST7920_128X64_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7920_p_128x64_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7920_p_128x64_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_ST7920_128X64_F_8080 : public U8G2 {
   public: U8G2_ST7920_128X64_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7920_p_128x64_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7920_p_128x64_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -1162,7 +1172,7 @@ class U8G2_ST7920_128X64_F_6800 : public U8G2 {
 };
 class U8G2_ST7920_128X64_1_SW_SPI : public U8G2 {
   public: U8G2_ST7920_128X64_1_SW_SPI(const u8g2_cb_t *rotation, uint8_t clock, uint8_t data, uint8_t cs, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7920_s_128x64_1(&u8g2, rotation, u8x8_byte_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7920_s_128x64_1(&u8g2, rotation, u8x8_byte_arduino_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_3Wire_SW_SPI(getU8x8(), clock, data, cs, reset);
   }
 };
@@ -1174,7 +1184,7 @@ class U8G2_ST7920_128X64_1_HW_SPI : public U8G2 {
 };
 class U8G2_ST7920_128X64_2_SW_SPI : public U8G2 {
   public: U8G2_ST7920_128X64_2_SW_SPI(const u8g2_cb_t *rotation, uint8_t clock, uint8_t data, uint8_t cs, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7920_s_128x64_2(&u8g2, rotation, u8x8_byte_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7920_s_128x64_2(&u8g2, rotation, u8x8_byte_arduino_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_3Wire_SW_SPI(getU8x8(), clock, data, cs, reset);
   }
 };
@@ -1186,7 +1196,7 @@ class U8G2_ST7920_128X64_2_HW_SPI : public U8G2 {
 };
 class U8G2_ST7920_128X64_F_SW_SPI : public U8G2 {
   public: U8G2_ST7920_128X64_F_SW_SPI(const u8g2_cb_t *rotation, uint8_t clock, uint8_t data, uint8_t cs, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7920_s_128x64_f(&u8g2, rotation, u8x8_byte_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7920_s_128x64_f(&u8g2, rotation, u8x8_byte_arduino_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_3Wire_SW_SPI(getU8x8(), clock, data, cs, reset);
   }
 };
@@ -1258,7 +1268,7 @@ class U8G2_UC1701_EA_DOGS102_1_6800 : public U8G2 {
 };
 class U8G2_UC1701_EA_DOGS102_1_8080 : public U8G2 {
   public: U8G2_UC1701_EA_DOGS102_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_uc1701_ea_dogs102_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_uc1701_ea_dogs102_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -1288,7 +1298,7 @@ class U8G2_UC1701_EA_DOGS102_2_6800 : public U8G2 {
 };
 class U8G2_UC1701_EA_DOGS102_2_8080 : public U8G2 {
   public: U8G2_UC1701_EA_DOGS102_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_uc1701_ea_dogs102_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_uc1701_ea_dogs102_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -1318,7 +1328,7 @@ class U8G2_UC1701_EA_DOGS102_F_6800 : public U8G2 {
 };
 class U8G2_UC1701_EA_DOGS102_F_8080 : public U8G2 {
   public: U8G2_UC1701_EA_DOGS102_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_uc1701_ea_dogs102_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_uc1701_ea_dogs102_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -1348,7 +1358,7 @@ class U8G2_UC1701_MINI12864_1_6800 : public U8G2 {
 };
 class U8G2_UC1701_MINI12864_1_8080 : public U8G2 {
   public: U8G2_UC1701_MINI12864_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_uc1701_mini12864_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_uc1701_mini12864_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -1378,7 +1388,7 @@ class U8G2_UC1701_MINI12864_2_6800 : public U8G2 {
 };
 class U8G2_UC1701_MINI12864_2_8080 : public U8G2 {
   public: U8G2_UC1701_MINI12864_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_uc1701_mini12864_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_uc1701_mini12864_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -1408,7 +1418,7 @@ class U8G2_UC1701_MINI12864_F_6800 : public U8G2 {
 };
 class U8G2_UC1701_MINI12864_F_8080 : public U8G2 {
   public: U8G2_UC1701_MINI12864_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_uc1701_mini12864_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_uc1701_mini12864_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -1870,7 +1880,7 @@ class U8G2_ST7565_EA_DOGM128_1_6800 : public U8G2 {
 };
 class U8G2_ST7565_EA_DOGM128_1_8080 : public U8G2 {
   public: U8G2_ST7565_EA_DOGM128_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7565_ea_dogm128_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7565_ea_dogm128_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -1900,7 +1910,7 @@ class U8G2_ST7565_EA_DOGM128_2_6800 : public U8G2 {
 };
 class U8G2_ST7565_EA_DOGM128_2_8080 : public U8G2 {
   public: U8G2_ST7565_EA_DOGM128_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7565_ea_dogm128_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7565_ea_dogm128_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -1930,7 +1940,7 @@ class U8G2_ST7565_EA_DOGM128_F_6800 : public U8G2 {
 };
 class U8G2_ST7565_EA_DOGM128_F_8080 : public U8G2 {
   public: U8G2_ST7565_EA_DOGM128_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7565_ea_dogm128_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7565_ea_dogm128_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -1960,7 +1970,7 @@ class U8G2_ST7565_NHD_C12832_1_6800 : public U8G2 {
 };
 class U8G2_ST7565_NHD_C12832_1_8080 : public U8G2 {
   public: U8G2_ST7565_NHD_C12832_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7565_nhd_c12832_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7565_nhd_c12832_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -1990,7 +2000,7 @@ class U8G2_ST7565_NHD_C12832_2_6800 : public U8G2 {
 };
 class U8G2_ST7565_NHD_C12832_2_8080 : public U8G2 {
   public: U8G2_ST7565_NHD_C12832_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7565_nhd_c12832_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7565_nhd_c12832_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -2020,79 +2030,79 @@ class U8G2_ST7565_NHD_C12832_F_6800 : public U8G2 {
 };
 class U8G2_ST7565_NHD_C12832_F_8080 : public U8G2 {
   public: U8G2_ST7565_NHD_C12832_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_st7565_nhd_c12832_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_st7565_nhd_c12832_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_T6963_240X128_1_8080 : public U8G2 {
   public: U8G2_T6963_240X128_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_t6963_240x128_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_t6963_240x128_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_T6963_240X128_2_8080 : public U8G2 {
   public: U8G2_T6963_240X128_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_t6963_240x128_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_t6963_240x128_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_T6963_240X128_F_8080 : public U8G2 {
   public: U8G2_T6963_240X128_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_t6963_240x128_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_t6963_240x128_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_T6963_240X64_1_8080 : public U8G2 {
   public: U8G2_T6963_240X64_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_t6963_240x64_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_t6963_240x64_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_T6963_240X64_2_8080 : public U8G2 {
   public: U8G2_T6963_240X64_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_t6963_240x64_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_t6963_240x64_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_T6963_240X64_F_8080 : public U8G2 {
   public: U8G2_T6963_240X64_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_t6963_240x64_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_t6963_240x64_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_T6963_256X64_1_8080 : public U8G2 {
   public: U8G2_T6963_256X64_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_t6963_256x64_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_t6963_256x64_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_T6963_256X64_2_8080 : public U8G2 {
   public: U8G2_T6963_256X64_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_t6963_256x64_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_t6963_256x64_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_T6963_256X64_F_8080 : public U8G2 {
   public: U8G2_T6963_256X64_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_t6963_256x64_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_t6963_256x64_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_T6963_128X64_1_8080 : public U8G2 {
   public: U8G2_T6963_128X64_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_t6963_128x64_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_t6963_128x64_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_T6963_128X64_2_8080 : public U8G2 {
   public: U8G2_T6963_128X64_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_t6963_128x64_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_t6963_128x64_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8G2_T6963_128X64_F_8080 : public U8G2 {
   public: U8G2_T6963_128X64_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_t6963_128x64_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_t6963_128x64_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -2122,7 +2132,7 @@ class U8G2_SSD1322_NHD_256X64_1_6800 : public U8G2 {
 };
 class U8G2_SSD1322_NHD_256X64_1_8080 : public U8G2 {
   public: U8G2_SSD1322_NHD_256X64_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1322_nhd_256x64_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1322_nhd_256x64_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -2152,7 +2162,7 @@ class U8G2_SSD1322_NHD_256X64_2_6800 : public U8G2 {
 };
 class U8G2_SSD1322_NHD_256X64_2_8080 : public U8G2 {
   public: U8G2_SSD1322_NHD_256X64_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1322_nhd_256x64_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1322_nhd_256x64_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -2182,7 +2192,7 @@ class U8G2_SSD1322_NHD_256X64_F_6800 : public U8G2 {
 };
 class U8G2_SSD1322_NHD_256X64_F_8080 : public U8G2 {
   public: U8G2_SSD1322_NHD_256X64_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ssd1322_nhd_256x64_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ssd1322_nhd_256x64_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -2194,7 +2204,7 @@ class U8G2_SED1330_240X128_1_6800 : public U8G2 {
 };
 class U8G2_SED1330_240X128_1_8080 : public U8G2 {
   public: U8G2_SED1330_240X128_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_sed1330_240x128_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_sed1330_240x128_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -2206,7 +2216,7 @@ class U8G2_SED1330_240X128_2_6800 : public U8G2 {
 };
 class U8G2_SED1330_240X128_2_8080 : public U8G2 {
   public: U8G2_SED1330_240X128_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_sed1330_240x128_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_sed1330_240x128_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -2218,7 +2228,7 @@ class U8G2_SED1330_240X128_F_6800 : public U8G2 {
 };
 class U8G2_SED1330_240X128_F_8080 : public U8G2 {
   public: U8G2_SED1330_240X128_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_sed1330_240x128_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_sed1330_240x128_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -2230,7 +2240,7 @@ class U8G2_RA8835_NHD_240X128_1_6800 : public U8G2 {
 };
 class U8G2_RA8835_NHD_240X128_1_8080 : public U8G2 {
   public: U8G2_RA8835_NHD_240X128_1_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ra8835_nhd_240x128_1(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ra8835_nhd_240x128_1(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -2242,7 +2252,7 @@ class U8G2_RA8835_NHD_240X128_2_6800 : public U8G2 {
 };
 class U8G2_RA8835_NHD_240X128_2_8080 : public U8G2 {
   public: U8G2_RA8835_NHD_240X128_2_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ra8835_nhd_240x128_2(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ra8835_nhd_240x128_2(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -2254,7 +2264,7 @@ class U8G2_RA8835_NHD_240X128_F_6800 : public U8G2 {
 };
 class U8G2_RA8835_NHD_240X128_F_8080 : public U8G2 {
   public: U8G2_RA8835_NHD_240X128_F_8080(const u8g2_cb_t *rotation, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8G2() {
-    u8g2_Setup_ra8835_nhd_240x128_f(&u8g2, rotation, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8g2_Setup_ra8835_nhd_240x128_f(&u8g2, rotation, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };

src/U8x8lib.cpp

@@ -192,54 +192,89 @@ extern "C" uint8_t u8x8_byte_arduino_4wire_sw_spi(u8x8_t *u8x8, uint8_t msg, uin
   uint8_t i, b;
   uint8_t *data;
   uint8_t takeover_edge = u8x8_GetSPIClockPhase(u8x8);
-  uint8_t not_takeover_edge = 1 - takeover_edge;
+  //uint8_t not_takeover_edge = 1 - takeover_edge;
 
   /* the following static vars are recalculated in U8X8_MSG_BYTE_START_TRANSFER */
   /* so, it should be possible to used multiple displays with different pins */
   
   static volatile uint8_t *arduino_clock_port;
-  static volatile uint8_t arduino_clock_mask;
-  static volatile uint8_t arduino_clock_n_mask;
+  
+  static uint8_t arduino_clock_mask;
+  static uint8_t arduino_clock_n_mask;
   
   static volatile uint8_t *arduino_data_port;
-  static volatile uint8_t arduino_data_mask;
-  static volatile uint8_t arduino_data_n_mask;
+  static uint8_t arduino_data_mask;
+  static uint8_t arduino_data_n_mask;
+
 
 
   switch(msg)
   {
     case U8X8_MSG_BYTE_SEND:
       data = (uint8_t *)arg_ptr;
+      
       while( arg_int > 0 )
       {
 	b = *data;
 	data++;
 	arg_int--;
-	for( i = 0; i < 8; i++ )
+	
+	if ( b == 0 )
 	{
-	  if ( b & 128 )
-	    *arduino_data_port |= arduino_data_mask;
-	  else
-	    *arduino_data_port &= arduino_data_n_mask;
-	  b <<= 1;
-
-	  if ( not_takeover_edge != 0 )
-	    *arduino_clock_port |= arduino_clock_mask;
-	  else
-	    *arduino_clock_port &= arduino_clock_n_mask;
-		
-	  /* AVR Architecture is very slow, extra call is not required */
-	  //u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->sda_setup_time_ns);
-	  
-	  if ( takeover_edge != 0 )
-	    *arduino_clock_port |= arduino_clock_mask;
+	  /* do some high speed transfer for zero data */
+	  *arduino_data_port &= arduino_data_n_mask;
+	  if ( takeover_edge == 0 )
+	  {
+	    for( i = 0; i < 4; i++ )
+	    {
+	      *arduino_clock_port |= arduino_clock_mask;
+	      *arduino_clock_port &= arduino_clock_n_mask;
+	      *arduino_clock_port |= arduino_clock_mask;
+	      *arduino_clock_port &= arduino_clock_n_mask;
+	    }
+	  }
 	  else
-	    *arduino_clock_port &= arduino_clock_n_mask;
-	  
-	  /* AVR Architecture is very slow, extra call is not required */
-	  //u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->sck_pulse_width_ns);
-	}    
+	  {
+	    for( i = 0; i < 4; i++ )
+	    {
+	      *arduino_clock_port &= arduino_clock_n_mask;
+	      *arduino_clock_port |= arduino_clock_mask;
+	      *arduino_clock_port &= arduino_clock_n_mask;
+	      *arduino_clock_port |= arduino_clock_mask;
+	    }
+	  }
+	}
+	else
+	{
+	  for( i = 0; i < 8; i++ )
+	  {
+	    if ( b & 128 )
+	      *arduino_data_port |= arduino_data_mask;
+	    else
+	      *arduino_data_port &= arduino_data_n_mask;
+	    b <<= 1;
+
+	    if ( takeover_edge == 0 )
+	      *arduino_clock_port |= arduino_clock_mask;
+	    else
+	      *arduino_clock_port &= arduino_clock_n_mask;
+		  
+	    /* AVR Architecture is very slow, extra call is not required */
+	    //u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->sda_setup_time_ns);
+	    
+	    if ( takeover_edge != 0 )
+	      *arduino_clock_port |= arduino_clock_mask;
+	    else
+	      *arduino_clock_port &= arduino_clock_n_mask;
+	    
+	    /* AVR Architecture is very slow, extra call is not required */
+	    //u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->sck_pulse_width_ns);
+	  }    
+	}
       }
+      
+      
+      
       break;
       
     case U8X8_MSG_BYTE_INIT:
@@ -262,6 +297,8 @@ extern "C" uint8_t u8x8_byte_arduino_4wire_sw_spi(u8x8_t *u8x8, uint8_t msg, uin
       arduino_clock_port = portOutputRegister(digitalPinToPort(u8x8->pins[U8X8_PIN_SPI_CLOCK]));
       arduino_clock_mask = digitalPinToBitMask(u8x8->pins[U8X8_PIN_SPI_CLOCK]);
       arduino_clock_n_mask = ~arduino_clock_mask;
+    
+      
 
       /* there is no consistency checking for u8x8->pins[U8X8_PIN_SPI_DATA] */
 
@@ -450,6 +487,140 @@ extern "C" uint8_t u8x8_byte_arduino_2nd_hw_i2c(U8X8_UNUSED u8x8_t *u8x8, U8X8_U
   return 1;
 }
 
+/*=============================================*/
+
+/*
+  replacement for a more faster u8x8_byte_8bit_8080mode
+  in general u8x8_byte_8bit_8080mode could be a fallback:
+
+  uint8_t u8x8_byte_arduino_8bit_8080mode(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
+  {
+    return u8x8_byte_8bit_8080mode(u8x8, msg,arg_int, arg_ptr);
+  }
+
+
+
+*/
+
+#ifndef __AVR_ARCH__
+#define __AVR_ARCH__ 0
+#endif 
+
+#if !defined(U8X8_USE_PINS)
+  /* no pin information (very strange), so fallback */
+extern "C" uint8_t u8x8_byte_arduino_8bit_8080mode(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
+{
+  return u8x8_byte_8bit_8080mode(u8x8, msg,arg_int, arg_ptr);
+}
+
+#elif __AVR_ARCH__ == 4 || __AVR_ARCH__ == 5 || __AVR_ARCH__ == 51 || __AVR_ARCH__ == 6
+
+/* this function completly replaces u8x8_byte_8bit_8080mode*/
+extern "C" uint8_t u8x8_byte_arduino_8bit_8080mode(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
+{
+  uint8_t i, b;
+  uint8_t *data;
+
+  /* the following static vars are recalculated in U8X8_MSG_BYTE_START_TRANSFER */
+  /* so, it should be possible to used multiple displays with different pins */
+  
+  static volatile uint8_t *arduino_e_port;
+  static volatile uint8_t arduino_e_mask;
+  static volatile uint8_t arduino_e_n_mask;
+  
+  static volatile uint8_t *arduino_data_port[8];
+  static volatile uint8_t arduino_data_mask[8];
+  static volatile uint8_t arduino_data_n_mask[8];
+
+  switch(msg)
+  {
+    case U8X8_MSG_BYTE_SEND:
+      data = (uint8_t *)arg_ptr;
+      while( arg_int > 0 )
+      {
+	b = *data;
+	data++;
+	arg_int--;
+	for( i = 0; i < 8; i++ )
+	{
+	  if ( b & 1 )
+	    *arduino_data_port[i] |= arduino_data_mask[i];
+	  else
+	    *arduino_data_port[i] &= arduino_data_n_mask[i];
+	  b >>= 1;
+
+	}
+	
+	*arduino_e_port &= arduino_e_n_mask;
+
+	      
+	/* AVR Architecture is very slow, extra call is not required */
+	u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->sda_setup_time_ns);
+	
+	*arduino_e_port |= arduino_e_mask;
+	
+	/* AVR Architecture is very slow, extra call is not required */
+	u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->sck_pulse_width_ns);
+	
+      }
+      break;
+      
+    case U8X8_MSG_BYTE_INIT:
+      /* disable chipselect */
+      u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level);
+      /* no wait required here */
+      
+      /* ensure that the enable signal is high */
+      u8x8_gpio_call(u8x8, U8X8_MSG_GPIO_E, 1);
+      break;
+    case U8X8_MSG_BYTE_SET_DC:
+      u8x8_gpio_SetDC(u8x8, arg_int);
+      break;
+    case U8X8_MSG_BYTE_START_TRANSFER:
+      u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_enable_level);  
+      u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->post_chip_enable_wait_ns, NULL);
+
+      /* there is no consistency checking for u8x8->pins[U8X8_PIN_E] */
+    
+      arduino_e_port = portOutputRegister(digitalPinToPort(u8x8->pins[U8X8_PIN_E]));
+      arduino_e_mask = digitalPinToBitMask(u8x8->pins[U8X8_PIN_E]);
+      arduino_e_n_mask = ~arduino_e_mask;
+
+      /* there is no consistency checking for u8x8->pins[U8X8_PIN_D0] */
+
+      for( i = 0; i < 8; i++ )
+      {
+	arduino_data_port[i] = portOutputRegister(digitalPinToPort(u8x8->pins[U8X8_PIN_D0+i]));
+	arduino_data_mask[i] = digitalPinToBitMask(u8x8->pins[U8X8_PIN_D0+i]);
+	arduino_data_n_mask[i] = ~arduino_data_mask[i];
+      }
+
+      break;
+    case U8X8_MSG_BYTE_END_TRANSFER:
+      u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->pre_chip_disable_wait_ns, NULL);
+      u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level);
+      break;
+    default:
+      return 0;
+  }
+  return 1;
+}
+
+#else
+  /* fallback */
+extern "C" uint8_t u8x8_byte_arduino_8bit_8080mode(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
+{
+  return u8x8_byte_8bit_8080mode(u8x8, msg,arg_int, arg_ptr);
+}
+  
+#endif
+
+
+
+
+
+
+
 
 /*
   use U8X8_PIN_NONE as value for "reset", if there is no reset line

src/U8x8lib.h

@@ -79,6 +79,7 @@
 
 
 extern "C" uint8_t u8x8_gpio_and_delay_arduino(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
+extern "C" uint8_t u8x8_byte_arduino_8bit_8080mode(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
 extern "C" uint8_t u8x8_byte_arduino_4wire_sw_spi(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
 extern "C" uint8_t u8x8_byte_arduino_hw_spi(u8x8_t *u8g2, uint8_t msg, uint8_t arg_int, void *arg_ptr);
 extern "C" uint8_t u8x8_byte_arduino_hw_i2c(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
@@ -262,7 +263,7 @@ class U8X8_SSD1306_128X64_NONAME_6800 : public U8X8 {
 };
 class U8X8_SSD1306_128X64_NONAME_8080 : public U8X8 {
   public: U8X8_SSD1306_128X64_NONAME_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_ssd1306_128x64_noname, u8x8_cad_001, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_ssd1306_128x64_noname, u8x8_cad_001, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -310,7 +311,7 @@ class U8X8_SH1106_128X64_NONAME_6800 : public U8X8 {
 };
 class U8X8_SH1106_128X64_NONAME_8080 : public U8X8 {
   public: U8X8_SH1106_128X64_NONAME_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_sh1106_128x64_noname, u8x8_cad_001, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_sh1106_128x64_noname, u8x8_cad_001, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -358,7 +359,7 @@ class U8X8_SSD1306_128X32_UNIVISION_6800 : public U8X8 {
 };
 class U8X8_SSD1306_128X32_UNIVISION_8080 : public U8X8 {
   public: U8X8_SSD1306_128X32_UNIVISION_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_ssd1306_128x32_univision, u8x8_cad_001, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_ssd1306_128x32_univision, u8x8_cad_001, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -406,7 +407,7 @@ class U8X8_SSD1306_64X48_ER_6800 : public U8X8 {
 };
 class U8X8_SSD1306_64X48_ER_8080 : public U8X8 {
   public: U8X8_SSD1306_64X48_ER_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_ssd1306_64x48_er, u8x8_cad_001, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_ssd1306_64x48_er, u8x8_cad_001, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -454,7 +455,7 @@ class U8X8_SSD1325_NHD_128X64_6800 : public U8X8 {
 };
 class U8X8_SSD1325_NHD_128X64_8080 : public U8X8 {
   public: U8X8_SSD1325_NHD_128X64_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_ssd1325_nhd_128x64, u8x8_cad_001, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_ssd1325_nhd_128x64, u8x8_cad_001, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -490,7 +491,7 @@ class U8X8_LD7032_60X32_2ND_HW_I2C : public U8X8 {
 };
 class U8X8_ST7920_192X32_8080 : public U8X8 {
   public: U8X8_ST7920_192X32_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_st7920_192x32, u8x8_cad_001, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_st7920_192x32, u8x8_cad_001, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -502,7 +503,7 @@ class U8X8_ST7920_192X32_6800 : public U8X8 {
 };
 class U8X8_ST7920_192X32_SW_SPI : public U8X8 {
   public: U8X8_ST7920_192X32_SW_SPI(uint8_t clock, uint8_t data, uint8_t cs, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_st7920_192x32, u8x8_cad_st7920_spi, u8x8_byte_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_st7920_192x32, u8x8_cad_st7920_spi, u8x8_byte_arduino_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_3Wire_SW_SPI(getU8x8(), clock, data, cs, reset);
   }
 };
@@ -514,7 +515,7 @@ class U8X8_ST7920_192X32_HW_SPI : public U8X8 {
 };
 class U8X8_ST7920_128X64_8080 : public U8X8 {
   public: U8X8_ST7920_128X64_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_st7920_128x64, u8x8_cad_001, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_st7920_128x64, u8x8_cad_001, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -526,7 +527,7 @@ class U8X8_ST7920_128X64_6800 : public U8X8 {
 };
 class U8X8_ST7920_128X64_SW_SPI : public U8X8 {
   public: U8X8_ST7920_128X64_SW_SPI(uint8_t clock, uint8_t data, uint8_t cs, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_st7920_128x64, u8x8_cad_st7920_spi, u8x8_byte_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_st7920_128x64, u8x8_cad_st7920_spi, u8x8_byte_arduino_4wire_sw_spi, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_3Wire_SW_SPI(getU8x8(), clock, data, cs, reset);
   }
 };
@@ -574,7 +575,7 @@ class U8X8_UC1701_EA_DOGS102_6800 : public U8X8 {
 };
 class U8X8_UC1701_EA_DOGS102_8080 : public U8X8 {
   public: U8X8_UC1701_EA_DOGS102_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_uc1701_ea_dogs102, u8x8_cad_001, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_uc1701_ea_dogs102, u8x8_cad_001, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -604,7 +605,7 @@ class U8X8_UC1701_MINI12864_6800 : public U8X8 {
 };
 class U8X8_UC1701_MINI12864_8080 : public U8X8 {
   public: U8X8_UC1701_MINI12864_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_uc1701_mini12864, u8x8_cad_001, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_uc1701_mini12864, u8x8_cad_001, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -778,7 +779,7 @@ class U8X8_ST7565_EA_DOGM128_6800 : public U8X8 {
 };
 class U8X8_ST7565_EA_DOGM128_8080 : public U8X8 {
   public: U8X8_ST7565_EA_DOGM128_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_st7565_ea_dogm128, u8x8_cad_001, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_st7565_ea_dogm128, u8x8_cad_001, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -808,31 +809,31 @@ class U8X8_ST7565_NHD_C12832_6800 : public U8X8 {
 };
 class U8X8_ST7565_NHD_C12832_8080 : public U8X8 {
   public: U8X8_ST7565_NHD_C12832_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_st7565_nhd_c12832, u8x8_cad_001, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_st7565_nhd_c12832, u8x8_cad_001, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8X8_T6963_240X128_8080 : public U8X8 {
   public: U8X8_T6963_240X128_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_t6963_240x128, u8x8_cad_100, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_t6963_240x128, u8x8_cad_100, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8X8_T6963_240X64_8080 : public U8X8 {
   public: U8X8_T6963_240X64_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_t6963_240x64, u8x8_cad_100, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_t6963_240x64, u8x8_cad_100, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8X8_T6963_256X64_8080 : public U8X8 {
   public: U8X8_T6963_256X64_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_t6963_256x64, u8x8_cad_100, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_t6963_256x64, u8x8_cad_100, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
 class U8X8_T6963_128X64_8080 : public U8X8 {
   public: U8X8_T6963_128X64_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_t6963_128x64, u8x8_cad_100, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_t6963_128x64, u8x8_cad_100, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -862,7 +863,7 @@ class U8X8_SSD1322_NHD_256X64_6800 : public U8X8 {
 };
 class U8X8_SSD1322_NHD_256X64_8080 : public U8X8 {
   public: U8X8_SSD1322_NHD_256X64_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_ssd1322_nhd_256x64, u8x8_cad_011, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_ssd1322_nhd_256x64, u8x8_cad_011, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -874,7 +875,7 @@ class U8X8_SED1330_240X128_6800 : public U8X8 {
 };
 class U8X8_SED1330_240X128_8080 : public U8X8 {
   public: U8X8_SED1330_240X128_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_sed1330_240x128, u8x8_cad_100, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_sed1330_240x128, u8x8_cad_100, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };
@@ -886,7 +887,7 @@ class U8X8_RA8835_NHD_240X128_6800 : public U8X8 {
 };
 class U8X8_RA8835_NHD_240X128_8080 : public U8X8 {
   public: U8X8_RA8835_NHD_240X128_8080(uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7, uint8_t enable, uint8_t cs, uint8_t dc, uint8_t reset = U8X8_PIN_NONE) : U8X8() {
-    u8x8_Setup(getU8x8(), u8x8_d_ra8835_nhd_240x128, u8x8_cad_100, u8x8_byte_8bit_8080mode, u8x8_gpio_and_delay_arduino);
+    u8x8_Setup(getU8x8(), u8x8_d_ra8835_nhd_240x128, u8x8_cad_100, u8x8_byte_arduino_8bit_8080mode, u8x8_gpio_and_delay_arduino);
     u8x8_SetPin_8Bit_8080(getU8x8(), d0, d1, d2, d3, d4, d5, d6, d7, enable, cs, dc, reset);
   }
 };

src/clib/u8g2.h

@@ -325,6 +325,7 @@ struct u8g2_struct
   uint8_t draw_color;		/* 0: clear pixel, 1: set pixel, modified and restored by font procedures */
 					/* draw_color can be used also directly by the user API */
 					
+  uint8_t is_auto_page_clear; 		/* set to 0 to disable automatic page clear in firstPage() and nextPage() */
   
 #ifdef U8G2_WITH_HVLINE_COUNT
   unsigned long hv_cnt;
@@ -333,6 +334,8 @@ struct u8g2_struct
 
 #define u8g2_GetU8x8(u8g2) ((u8x8_t *)(u8g2))
 
+#define u8g2_SetAutoPageClear(u8g2, mode) ((u8g2)->is_auto_page_clear = (mode))
+
 /*==========================================*/
 /* u8x8 wrapper */
 
@@ -583,9 +586,15 @@ void u8g2_Setup_a2printer_384x240_f(u8g2_t *u8g2, const u8g2_cb_t *rotation, u8x
 void u8g2_SendBuffer(u8g2_t *u8g2);
 void u8g2_ClearBuffer(u8g2_t *u8g2);
 
+void u8g2_SetBufferCurrTileRow(u8g2_t *u8g2, uint8_t row) U8G2_NOINLINE;
 void u8g2_FirstPage(u8g2_t *u8g2);
 uint8_t u8g2_NextPage(u8g2_t *u8g2);
 
+#define u8g2_GetBufferPtr(u8g2) ((u8g2)->tile_buf_ptr)
+#define u8g2_GetBufferTileHeight(u8g2)	((u8g2)->tile_buf_height)
+#define u8g2_GetBufferTileWidth(u8g2)	(u8g2_GetU8x8(u8g2)->display_info->tile_width)
+/* the following variable is only valid after calling u8g2_FirstPage */
+#define u8g2_GetBufferCurrTileRow(u8g2) ((u8g2)->tile_curr_row)
 
 /*==========================================*/
 /* u8g2_ll_hvline.c */

src/clib/u8g2_buffer.c

@@ -84,13 +84,19 @@ void u8g2_SendBuffer(u8g2_t *u8g2)
 }
 
 /*============================================*/
-void u8g2_FirstPage(u8g2_t *u8g2)
+void u8g2_SetBufferCurrTileRow(u8g2_t *u8g2, uint8_t row)
 {
-  u8g2_ClearBuffer(u8g2);
-  u8g2->tile_curr_row = 0;
+  u8g2->tile_curr_row = row;
   u8g2->cb->update(u8g2);
 }
 
+void u8g2_FirstPage(u8g2_t *u8g2)
+{
+  if ( u8g2->is_auto_page_clear )
+    u8g2_ClearBuffer(u8g2);
+  u8g2_SetBufferCurrTileRow(u8g2, 0);
+}
+
 uint8_t u8g2_NextPage(u8g2_t *u8g2)
 {
   uint8_t row;
@@ -99,8 +105,8 @@ uint8_t u8g2_NextPage(u8g2_t *u8g2)
   row += u8g2->tile_buf_height;
   if ( row >= u8g2_GetU8x8(u8g2)->display_info->tile_height )
     return 0;
-  u8g2_ClearBuffer(u8g2);
-  u8g2->tile_curr_row = row;
-  u8g2->cb->update(u8g2); 
+  if ( u8g2->is_auto_page_clear )
+    u8g2_ClearBuffer(u8g2);
+  u8g2_SetBufferCurrTileRow(u8g2, row);
   return 1;
 }

src/clib/u8g2_setup.c

@@ -55,6 +55,7 @@ void u8g2_SetupBuffer(u8g2_t *u8g2, uint8_t *buf, uint8_t tile_buf_height, u8g2_
   
   u8g2->tile_curr_row = 0;
   u8g2->draw_color = 1;
+  u8g2->is_auto_page_clear = 1;
   
   u8g2->cb = u8g2_cb;
   u8g2->cb->update(u8g2);

src/clib/u8x8_cad.c

@@ -315,11 +315,13 @@ uint8_t u8x8_cad_st7920_spi(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *ar
 {
   uint8_t *data;
   uint8_t b;
+  uint8_t i;
+  static uint8_t buf[16];
+  uint8_t *ptr;
   
   switch(msg)
   {
     case U8X8_MSG_CAD_SEND_CMD:
-      //u8x8_byte_SetDC(u8x8, 0);
       u8x8_byte_SendByte(u8x8, 0x0f8);
       u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, 1);
       u8x8_byte_SendByte(u8x8, arg_int & 0x0f0);
@@ -328,13 +330,11 @@ uint8_t u8x8_cad_st7920_spi(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *ar
       u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, 1);
       break;
     case U8X8_MSG_CAD_SEND_ARG:
-      //u8x8_byte_SetDC(u8x8, 0);
       u8x8_byte_SendByte(u8x8, 0x0f8);
       u8x8_byte_SendByte(u8x8, arg_int & 0x0f0);
       u8x8_byte_SendByte(u8x8, arg_int << 4);
       break;
     case U8X8_MSG_CAD_SEND_DATA:
-      //u8x8_byte_SetDC(u8x8, 1);
     
       u8x8_byte_SendByte(u8x8, 0x0fa);
       u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, 1);
@@ -342,13 +342,30 @@ uint8_t u8x8_cad_st7920_spi(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *ar
       /* this loop should be optimized: multiple bytes should be sent */
       /* u8x8_byte_SendBytes(u8x8, arg_int, arg_ptr); */
       data = (uint8_t *)arg_ptr;
+    
+      /* the following loop increases speed by 20% */
+      while( arg_int >= 8 )
+      {
+	i = 8;
+	ptr = buf;
+	do
+	{
+	  b = *data++;
+	  *ptr++= b & 0x0f0;
+	  b <<= 4;
+	  *ptr++= b;
+	  i--;
+	} while( i > 0 );
+	arg_int -= 8;
+	u8x8_byte_SendBytes(u8x8, 16, buf); 
+      }
+      
+    
       while( arg_int > 0 )
       {
 	b = *data;
 	u8x8_byte_SendByte(u8x8, b & 0x0f0);
-	//u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, 2);
 	u8x8_byte_SendByte(u8x8, b << 4);
-	//u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, 2);
 	data++;
 	arg_int--;
       }

src/clib/u8x8_d_uc1608.c

@@ -220,4 +220,85 @@ uint8_t u8x8_d_uc1608_erc24064(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void
   return 1;
 }
 
+
+/*================================================*/
+/* experimental implementation for the uc1608 240x128, not referenced in codebuild */
+
+static const u8x8_display_info_t u8x8_uc1608_240x128_display_info =
+{
+  /* chip_enable_level = */ 1,	/* uc1608 has high active CS */
+  /* chip_disable_level = */ 0,
+  
+  /* post_chip_enable_wait_ns = */ 10,	/* uc1608 datasheet, page 39, actually 0 */
+  /* pre_chip_disable_wait_ns = */ 20,	/* uc1608 datasheet, page 39 */
+  /* reset_pulse_width_ms = */ 1, 	/* uc1608 datasheet, page 42 */
+  /* post_reset_wait_ms = */ 10, 	
+  /* sda_setup_time_ns = */ 30,		/* uc1608 datasheet, page 41 */
+  /* sck_pulse_width_ns = */ 65,	/* half of cycle time  */
+  /* sck_clock_hz = */ 8000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
+  /* spi_mode = */ 0,		/* active high, rising edge */
+  /* i2c_bus_clock_100kHz = */ 4,
+  /* data_setup_time_ns = */ 30,	/* uc1608 datasheet, page 39 */
+  /* write_pulse_width_ns = */ 35,	/* uc1608 datasheet, page 39 */
+  /* tile_width = */ 30,		/* width of 30*8=240 pixel */
+  /* tile_hight = */ 16,
+  /* default_x_offset = */ 0,	/* reused as y page offset */
+  /* flipmode_x_offset = */ 0,	/* reused as y page offset */
+  /* pixel_width = */ 240,
+  /* pixel_height = */ 128
+};
+
+static const uint8_t u8x8_d_uc1608_240x128_init_seq[] = {
+    
+  U8X8_START_TRANSFER(),             	/* enable chip, delay is part of the transfer start */
+
+  U8X8_C(0x0e2),            			/* soft reset */
+  U8X8_DLY(200),
+
+  //U8X8_C(0x023),            			/* Bit 0/1: Temp compenstation, Bit 2: Multiplex Rate 0=96, 1=128 */
+  U8X8_C(0x027),            			/* Bit 0/1: Temp compenstation, Bit 2: Multiplex Rate 0=96, 1=128 */
+
+  U8X8_C(0x0c8),            			/* Map control, Bit 3: MY=1, Bit 2: MX=0, Bit 0: MSF =0 */
+  U8X8_C(0x0e8),            			/* LCD bias Bits 0/1: 00=10.7 01=10.3, 10=12.0, 11=12.7 */
+  
+  U8X8_C(0x02f),            			/* power on, Bit 2 PC2=1 (internal charge pump), Bits 0/1: cap of panel */
+  U8X8_DLY(50),
+  
+  U8X8_C(0x040),            			/* set display start line to 0 */
+  U8X8_C(0x090),            			/* no fixed lines */
+  U8X8_C(0x089),            			/* RAM access control */
+  
+  U8X8_CA(0x081, 0x014),		/* set contrast, ERC24064-1 default: 0x040 */
+  
+  U8X8_C(0x000),		                /* column low nibble */
+  U8X8_C(0x010),		                /* column high nibble */  
+  U8X8_C(0x0b0),		                /* page adr  */
+  
+  
+  U8X8_END_TRANSFER(),             	/* disable chip */
+  U8X8_END()             			/* end of sequence */
+};
+
+uint8_t u8x8_d_uc1608_240x128(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
+{
+  /* call common procedure first and handle messages there */
+  if ( u8x8_d_uc1608_common(u8x8, msg, arg_int, arg_ptr) == 0 )
+  {
+    /* msg not handled, then try here */
+    switch(msg)
+    {
+      case U8X8_MSG_DISPLAY_SETUP_MEMORY:
+	u8x8_d_helper_display_setup_memory(u8x8, &u8x8_uc1608_240x128_display_info);
+	break;
+      case U8X8_MSG_DISPLAY_INIT:
+	u8x8_d_helper_display_init(u8x8);
+	u8x8_cad_SendSequence(u8x8, u8x8_d_uc1608_240x128_init_seq);
+	break;
+      default:
+	return 0;		/* msg unknown */
+    }
+  }
+  return 1;
+}
+
 /*================================================*/