6502/n65
1
0
Fork 0
mirror of https://github.com/safiire/n65.git synced 2024-12-12 15:29:12 +00:00
Code Issues Projects Releases Wiki Activity

this branch sucks

Browse Source
This commit is contained in:
Safiire 2015-02-22 06:33:36 -08:00
parent 404934479f
commit a52ead091e
1 changed files with 18 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
lib/assembler.rb
View File

@ -158,7 +158,7 @@ module Assembler6502
## I am guessing the ROM size should be 1 bank of 16KB cartridge ROM
## plus the 16 byte iNES header. If the ROM is written into memory
## beginning at 0xC000, this should reach right up to the interrupt vectors
def assemble_old
def assemble
virtual_memory = assemble_in_virtual_memory
## First we need to be sure we have an iNES header
@ -197,7 +197,8 @@ module Assembler6502
####
## Another try at using the header to decide which segments
## go into the final ROM image, and which order.
def assemble
## This does not work, it needs to know about banks.
def assemble_new_crap
virtual_memory = assemble_in_virtual_memory
## First we need to be sure we have an iNES header
@ -222,25 +223,25 @@ module Assembler6502
end
## If prog rom is == 2 write the 16kb chunk from 0xC000
if @ines_header.prog == 2
nes_rom.write(0x10 + 0x4000, virtual_memory.read(0xC000, MemorySpace::ProgROMSize))
puts "Wrote 16KB byte prog rom 2"
end
fail("Can only have 2 prog rom slots") if @ines_header.prog > 2
#if @ines_header.prog == 2
#nes_rom.write(0x10 + 0x4000, virtual_memory.read(0xC000, MemorySpace::ProgROMSize))
#puts "Wrote 16KB byte prog rom 2"
#end
#fail("Can only have 2 prog rom slots") if @ines_header.prog > 2
## If char rom is >= 1 write the 8kb chunk from 0x0000
if @ines_header.char >= 1
char_start = 0x10 + (@ines_header.prog * MemorySpace::ProgROMSize)
nes_rom.write(char_start, virtual_memory.read(0x0000, MemorySpace::CharROMSize))
puts "Wrote 8KB byte char rom 1"
end
#if @ines_header.char >= 1
#char_start = 0x10 + (@ines_header.prog * MemorySpace::ProgROMSize)
#nes_rom.write(char_start, virtual_memory.read(0x0000, MemorySpace::CharROMSize))
#puts "Wrote 8KB byte char rom 1"
#end
## If char rom is == 2 write the 8kb chunk from 0x2000
if @ines_header.char >= 1
char_start = 0x10 + (@ines_header.prog * MemorySpace::ProgROMSize) + MemorySpace::CharROMSize
nes_rom.write(char_start, virtual_memory.read(0x2000, MemorySpace::CharROMSize))
puts "Wrote 8KB byte char rom 2"
end
#if @ines_header.char == 2
#char_start = 0x10 + (@ines_header.prog * MemorySpace::ProgROMSize) + MemorySpace::CharROMSize
#nes_rom.write(char_start, virtual_memory.read(0x2000, MemorySpace::CharROMSize))
#puts "Wrote 8KB byte char rom 2"
#end
nes_rom.emit_bytes
end