118 lines
2.4 KiB
Lua
118 lines
2.4 KiB
Lua
|
|
-- create the module's table
|
|
local erase = {}
|
|
|
|
-- import required modules
|
|
local dict = require "scripts.app.dict"
|
|
|
|
-- file constants
|
|
|
|
-- local functions
|
|
local function erase_nes()
|
|
|
|
local rv = nil
|
|
|
|
print("erasing_nrom");
|
|
|
|
dict.io("IO_RESET")
|
|
dict.io("NES_INIT")
|
|
|
|
print("erasing PRG-ROM");
|
|
dict.nes("DISCRETE_EXP0_PRGROM_WR", 0x5555, 0xAA)
|
|
dict.nes("DISCRETE_EXP0_PRGROM_WR", 0x2AAA, 0x55)
|
|
dict.nes("DISCRETE_EXP0_PRGROM_WR", 0x5555, 0x80)
|
|
dict.nes("DISCRETE_EXP0_PRGROM_WR", 0x5555, 0xAA)
|
|
dict.nes("DISCRETE_EXP0_PRGROM_WR", 0x2AAA, 0x55)
|
|
dict.nes("DISCRETE_EXP0_PRGROM_WR", 0x5555, 0x10)
|
|
rv = dict.nes("NES_CPU_RD", 0x8000)
|
|
|
|
local i = 0
|
|
|
|
while ( rv ~= 0xFF ) do
|
|
rv = dict.nes("NES_CPU_RD", 0x8000)
|
|
i = i + 1
|
|
end
|
|
print(i, " done erasing prg.\n");
|
|
|
|
print("erasing CHR-ROM");
|
|
dict.nes("NES_PPU_WR", 0x1555, 0xAA)
|
|
dict.nes("NES_PPU_WR", 0x0AAA, 0x55)
|
|
dict.nes("NES_PPU_WR", 0x1555, 0x80)
|
|
dict.nes("NES_PPU_WR", 0x1555, 0xAA)
|
|
dict.nes("NES_PPU_WR", 0x0AAA, 0x55)
|
|
dict.nes("NES_PPU_WR", 0x1555, 0x10)
|
|
rv = dict.nes("NES_PPU_RD", 0x0000)
|
|
|
|
local i = 0
|
|
|
|
while ( rv ~= 0xFF ) do
|
|
rv = dict.nes("NES_PPU_RD", 0x0000)
|
|
i = i + 1
|
|
end
|
|
print(i, " done erasing chr.\n");
|
|
|
|
end
|
|
|
|
|
|
-- local functions
|
|
local function erase_snes(debug)
|
|
|
|
local rv = nil
|
|
|
|
print("erasing SNES takes about 30sec");
|
|
|
|
dict.io("IO_RESET")
|
|
dict.io("SNES_INIT")
|
|
|
|
--WR $AAA:AA $555:55 $AAA:AA
|
|
dict.snes("SNES_SET_BANK", 0x00)
|
|
|
|
--put cart in program mode
|
|
dict.pinport("CTL_SET_LO", "SNES_RST")
|
|
|
|
dict.snes("SNES_ROM_WR", 0x0AAA, 0xAA)
|
|
dict.snes("SNES_ROM_WR", 0x0555, 0x55)
|
|
dict.snes("SNES_ROM_WR", 0x0AAA, 0x80)
|
|
dict.snes("SNES_ROM_WR", 0x0AAA, 0xAA)
|
|
dict.snes("SNES_ROM_WR", 0x0555, 0x55)
|
|
dict.snes("SNES_ROM_WR", 0x0AAA, 0x10)
|
|
|
|
--exit program mode
|
|
dict.pinport("CTL_SET_HI", "SNES_RST")
|
|
|
|
rv = dict.snes("SNES_ROM_RD", 0x0000)
|
|
|
|
local i = 0
|
|
|
|
while ( rv ~= 0xFF ) do
|
|
rv = dict.snes("SNES_ROM_RD", 0x0000)
|
|
i = i + 1
|
|
if debug then print(" ", i,":", string.format("%x",rv)) end
|
|
end
|
|
print(i, " done erasing snes.\n");
|
|
|
|
--put cart in program mode
|
|
dict.pinport("CTL_SET_LO", "SNES_RST")
|
|
|
|
--reset flash
|
|
dict.snes("SNES_ROM_WR", 0x0000, 0xF0)
|
|
|
|
--return to PLAY mode
|
|
dict.pinport("CTL_SET_HI", "SNES_RST")
|
|
|
|
end
|
|
|
|
|
|
-- global variables so other modules can use them
|
|
|
|
|
|
-- call functions desired to run when script is called/imported
|
|
|
|
|
|
-- functions other modules are able to call
|
|
erase.erase_nes = erase_nes
|
|
erase.erase_snes = erase_snes
|
|
|
|
-- return the module's table
|
|
return erase
|