Cleanup of Genesis console script: add unsupported messages, dead code removal, table usage inlined, fix off-by-one error, make debug msgs variable controlled.
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beyondcoast
parent
97c5258f86
commit
2972654e3b
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@ -5,15 +5,15 @@ local genesis_v1 = {}
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-- import required modules
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local dict = require "scripts.app.dict"
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local dump = require "scripts.app.dump"
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local flash = require "scripts.app.flash"
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local snes = require "scripts.app.snes"
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local apperase = require "scripts.app.erase"
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-- file constants
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-- local functions
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--dump the SNES ROM starting at the provided bank
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local function unsupported(operation)
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print("\nUNSUPPORTED OPERATION: \"" .. operation .. "\" not implemented yet for Sega Genesis.\n")
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end
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--/ROMSEL is always low for this dump
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local function dump_rom( file, rom_size_KB, debug )
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@ -24,19 +24,21 @@ local function dump_rom( file, rom_size_KB, debug )
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local num_reads = rom_size_KB / KB_per_bank
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local read_count = 0
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while ( read_count < num_reads ) do
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while (read_count < num_reads) do
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if debug then print( "dump ROM part ", read_count, " of ", num_reads) end
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if debug then print( "Dumping ROM part ", read_count + 1, " of ", num_reads) end
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if (read_count %8 == 0) then
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print("dumping ROM bank: ", read_count, " of ", num_reads-1)
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-- A "large" Genesis ROM is 24 banks, many are 8 and 16 - status every 4 is reasonable.
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-- The largest published Genesis game is Super Street Fighter 2, which is 40 banks!
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if (read_count % 4 == 0) then
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print("dumping ROM bank: ", read_count, " of ", num_reads - 1)
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end
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--select desired bank
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-- Select desired bank.
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dict.sega("SET_BANK", read_count)
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dump.dumptofile( file, KB_per_bank/2, addr_base, "GENESIS_ROM_PAGE0", false )
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dump.dumptofile( file, KB_per_bank/2, addr_base, "GENESIS_ROM_PAGE1", false )
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dump.dumptofile(file, KB_per_bank/2, addr_base, "GENESIS_ROM_PAGE0", debug)
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dump.dumptofile(file, KB_per_bank/2, addr_base, "GENESIS_ROM_PAGE1", debug)
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read_count = read_count + 1
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end
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@ -46,129 +48,56 @@ end
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--Cart should be in reset state upon calling this function
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--this function processes all user requests for this specific board/mapper
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local function process(process_opts, console_opts)
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local test = process_opts["test"]
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local read = process_opts["read"]
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local erase = process_opts["erase"]
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local program = process_opts["program"]
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local verify = process_opts["verify"]
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local dumpfile = process_opts["dump_filename"]
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local flashfile = process_opts["flash_filename"]
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local verifyfile = process_opts["verify_filename"]
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local rv = nil
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local file
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local rom_size = console_opts["rom_size_mbit"] * 128
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local wram_size = console_opts["wram_size_kb"]
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local mirror = console_opts["mirror"]
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--initialize device i/o for SEGA
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-- Initialize device i/o for SEGA
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dict.io("IO_RESET")
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dict.io("SEGA_INIT")
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--test cart by reading manf/prod ID
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if test then
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-- print("Testing SNES board");
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--
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-- --SNES detect HiROM or LoROM & RAM
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--
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-- --SNES detect if able to read flash ID's
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-- if not rom_manf_id(true) then
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-- print("ERROR unable to read flash ID")
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-- return
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-- end
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-- TODO: test cart by reading manf/prod ID
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if process_opts["test"] then
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unsupported("test")
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end
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--dump the ram to file
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-- TODO: dump the ram to file
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if dumpram then
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-- print("\nDumping SAVE RAM...")
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--
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-- --may have to verify /RESET is high to enable SRAM
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--
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-- file = assert(io.open(ramdumpfile, "wb"))
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--
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-- --dump cart into file
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-- dump_ram(file, rambank, ram_size, snes_mapping, true)
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--
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-- --may disable SRAM by placing /RESET low
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--
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-- --close file
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-- assert(file:close())
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--
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-- print("DONE Dumping SAVE RAM")
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unsupported("dumpram")
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end
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--dump the cart to dumpfile
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if read then
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-- Dump the cart to dumpfile.
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if process_opts["read"] then
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print("\nDumping SEGA ROM...")
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file = assert(io.open(dumpfile, "wb"))
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file = assert(io.open(process_opts["dump_filename"], "wb"))
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--dump cart into file
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dump_rom(file, rom_size, true)
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dump_rom(file, rom_size, false)
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--close file
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assert(file:close())
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print("DONE Dumping SEGA ROM")
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end
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--erase the cart
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if erase then
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-- erase_flash()
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-- TODO: erase the cart
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if process_opts["erase"] then
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unsupported("erase")
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end
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--write to wram on the cart
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-- TODO: write to wram on the cart
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if writeram then
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-- print("\nWritting to SAVE RAM...")
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--
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-- file = assert(io.open(ramwritefile, "rb"))
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--
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-- --flash.write_file( file, ram_size, "NOVAR", "PRGRAM", false )
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-- --flash.write_file( file, ram_size, "LOROM_3VOLT", "SNESROM", false )
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-- wr_ram(file, rambank, ram_size, snes_mapping, true)
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--
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-- --close file
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-- assert(file:close())
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--
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-- print("DONE Writting SAVE RAM")
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unsupported("writeram")
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end
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--program flashfile to the cart
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if program then
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-- --open file
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-- file = assert(io.open(flashfile, "rb"))
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-- --determine if auto-doubling, deinterleaving, etc,
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-- --needs done to make board compatible with rom
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--
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-- --flash cart
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-- flash_rom(file, rom_size, snes_mapping, true)
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--
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-- --close file
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-- assert(file:close())
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-- TODO: program flashfile to the cart
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if process_opts["program"] then
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unsupported("program")
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end
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--verify flashfile is on the cart
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if verify then
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-- print("\nPost dumping SNES ROM...")
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-- --for now let's just dump the file and verify manually
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--
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-- file = assert(io.open(verifyfile, "wb"))
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--
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-- --dump cart into file
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-- dump_rom(file, rom_size, true)
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--
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-- --close file
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-- assert(file:close())
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-- print("DONE Post dumping SNES ROM")
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-- TODO: verify flashfile is on the cart
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if process_opts["verify"] then
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unsupported("verify")
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end
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dict.io("IO_RESET")
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@ -176,13 +105,13 @@ end
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-- global variables so other modules can use them
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-- NONE
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-- call functions desired to run when script is called/imported
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-- NONE
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-- functions other modules are able to call
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genesis_v1.process = process
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-- return the module's table
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return genesis_v1
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return genesis_v1
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