echo Setting up the environment for debugging gdb.\n

set complaints 1
set output-radix 16
set input-radix 16
set endian big
dir .
set prompt (netsilicon-gdb)

# Set target for ROM at addr 0
set rdiromatzero 1


######################
## attach-to-target ##
######################

define attach-to-target

#
# This targets a "Raven" debugger via "netsiliconLibRemote"
# at the named address.
#
target remote localhost:2331
monitor speed 30

#
# Notify netsiliconLibRemote that it should be big endian
#
monitor endian big

#
# Initialize the debugger
#
monitor reset 1 0
monitor halt

end


###############
## addresses ##
###############

define addresses
set $portd_data = 0xffa00040
set $portd_out  = 0xffa00044
set $scr        = 0xffb00000
set $pllcr      = 0xffb00008
set $porta      = 0xffb00020
set $portb      = 0xffb00024
set $portc      = 0xffb00028
set $ier        = 0xffb00030
set $mmcr       = 0xffc00000
set $csar0      = 0xffc00010
set $csor0      = 0xffc00014
set $csorb0     = 0xffc00018
set $csar1      = 0xffc00020
set $csor1      = 0xffc00024
set $csorb1     = 0xffc00028
set $csar2      = 0xffc00030
set $csor2      = 0xffc00034
set $csorb2     = 0xffc00038
set $csar3      = 0xffc00040
set $csor3      = 0xffc00044
set $csorb3     = 0xffc00048
set $csar4      = 0xffc00050
set $csor4      = 0xffc00054
set $csorb4     = 0xffc00058
end


##############
## setup-cs ##
##############

define setup-cs

monitor long 0xffb00000 = 0x4004a000
monitor long 0xffc00000 = 0x0dc00000
monitor long 0xffb00030 = 0x00000000

monitor long 0xffc00014 = 0xf3000574
monitor long 0xffc00018 = 0x00000005
monitor long 0xffc00010 = 0x02000000

monitor long 0xffc00024 = 0xf3000174
monitor long 0xffc00028 = 0x00000001
monitor long 0xffc00020 = 0x0000022d

#
# Initialize PORTA as all GPIO inputs, and PORTC
# so that any pin which must not have a "sensible"
# value prior to OS initialization is a GPIO input.
#
# This gives the EOS the best chance of initializing
# the pins to the appropriate values at the beginning
# of time.
#
monitor long 0xffb00020 = 0x00000000
monitor long 0xffb00028 = 0x00000000

# Disable CS2-4
monitor long 0xffc00034 = 0
monitor long 0xffc00038 = 0
monitor long 0xffc00030 = 0
monitor long 0xffc00044 = 0
monitor long 0xffc00048 = 0
monitor long 0xffc00040 = 0
monitor long 0xffc00054 = 0
monitor long 0xffc00058 = 0
monitor long 0xffc00050 = 0

monitor long 0x0 = 0

# Set the processor mode
monitor reg cpsr = 0xd3

end


##################
## enable-flash ##
##################

define enable-flash
monitor long 0xffc00010 = 0x02000001
end


###################
## disable-flash ##
###################

define disable-flash
monitor long 0xffc00010 = 0x02000000
end


#################
## reset-sdram ##
#################

define reset-sdram
monitor long $csar1 = 0
monitor long $csor1 = 0xF3000174
monitor long $csar1 = 0x22d
end


########
## sb ##
########

#
# Useful breakpoints to catch "catastrophic" failure
#
define sb
# Breakpoints on the exception vectors
b *0x0
b *0x4
b *0x8
b *0xc
b *0x10
b *0x14
# b*0x1c
# b*0x20

# Breakpoints on error handling functions
b netosBreakpoint
b netosFatalError
b NARamSetupAbortHandler
b crash
b customizeErrorHandler
b customizeExceptionHandler
end


###############
###############

addresses

attach-to-target

setup-cs

# Setup GDB for faster downloads
set remote memory-write-packet-size 1024
set remote memory-write-packet-size fixed
monitor speed auto

# Load the executable and symbols (all in image.elf)
load image.elf