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master
...
771628a1ab
1
.gitignore
vendored
1
.gitignore
vendored
@ -1,4 +1,3 @@
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|||||||
*.swp
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*.swp
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*.smc
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*.smc
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*.obj
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*.obj
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out/
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|||||||
34
Makefile
Normal file
34
Makefile
Normal file
@ -0,0 +1,34 @@
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|
#all: smc
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|
all: test_gfx
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|
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BINPATH := /home/greg/code/wla-dx/binaries
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|
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|
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|
test_gfx: test_gfx.obj
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$(BINPATH)/wlalink -v -r test_gfx.link test_gfx.smc
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|
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test_gfx.obj: test_gfx.asm
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$(BINPATH)/wla-65816 -v -o test_gfx.obj test_gfx.asm
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|
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tic_tac: tic_tac.obj
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$(BINPATH)/wlalink -v -r tic_tac.link tic_tac.smc
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tic_tac.obj: tic_tac.asm
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$(BINPATH)/wla-65816 -v -o tic_tac.obj tic_tac.asm
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greenspace.obj: greenspace.asm
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wla-65816 -vo greenspace.asm greenspace.obj
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smc: greenspace.obj
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wlalink -vr greenspace.link greenspace.smc
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|
clean:
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rm -f *.obj
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rm -f greenspace.smc
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rm -f tic_tac.smc
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rm -f test_gfx.smc
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11
README.md
11
README.md
@ -1,10 +1,3 @@
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# SNES Assembly
|
Playing around with SNES assembly stuff
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|
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This repo is a playground for messing around with SNES assembly.
|
https://wiki.superfamicom.org/ <- a resource
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|
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It uses the [wla-dx](https://github.com/vhelin/wla-dx) assembler toolchain.
|
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# Resources
|
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* https://wiki.superfamicom.org/
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@ -1,201 +0,0 @@
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charset:
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; tile 0x00
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.byte %00000000
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.byte %00000000
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.byte %00000000
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.byte %00000000
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.byte %00000000
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|
||||||
.byte %00000000
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|
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.byte %00000000
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|
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.byte %00000000
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|
||||||
.byte %00000000
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|
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.byte %00000000
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|
||||||
.byte %00000000
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|
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.byte %00000000
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|
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.byte %00000000
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|
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.byte %00000000
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.byte %00000000
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|
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.byte %00000000
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||||||
|
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; tile 0x01
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.byte %11110000 ; row 0, color 0
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|
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.byte %11111111 ; row 0, color 1
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|
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.byte %10000001 ; row 1, color 0
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|
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.byte %00000000 ; row 1, color 1
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|
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.byte %10000001 ; row 2, color 0
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|
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.byte %00000000 ; row 2, color 1
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|
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.byte %10000001 ; row 3, color 0
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|
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.byte %00001000 ; row 3, color 1
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|
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.byte %10011001 ; row 4, color 0
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|
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.byte %00001000 ; row 4, color 1
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|
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.byte %10000001 ; row 5, color 0
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|
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.byte %00000000 ; row 5, color 1
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|
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.byte %10000001 ; row 6, color 0
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|
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.byte %00000000 ; row 6, color 1
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|
||||||
.byte %11111111 ; row 7, color 0
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.byte %00000000 ; row 7, color 1
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; tile 0x02
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.byte %00000000
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.byte %11111111
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.byte %00000000
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|
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.byte %11111111
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|
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.byte %00000000
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|
||||||
.byte %11111111
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|
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.byte %00000000
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|
||||||
.byte %11111111
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|
||||||
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|
||||||
.byte %00000000
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|
||||||
.byte %11111111
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|
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.byte %00000000
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|
||||||
.byte %11111111
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|
||||||
.byte %00000000
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|
||||||
.byte %11111111
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|
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.byte %00000000
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.byte %11111111
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|
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|
|
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; This is tile 0x02 in 2bpp mode (what the background uses), but tile
|
|
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; 0x01 in 4bpp mode (what the sprites use). It's very strange to mix
|
|
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; these, but my assumption is that by this point you've already got
|
|
||||||
; your own graphics pipeline of some sort and probably aren't using
|
|
||||||
; 2bpp graphics at all any more, so I'm sure you can figure out what'll
|
|
||||||
; work best for you on your own :)
|
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.byte %11111111
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|
||||||
.byte %00000000
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|
||||||
.byte %11111111
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|
||||||
.byte %00000000
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|
||||||
.byte %11111111
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|
||||||
.byte %00000000
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|
||||||
.byte %11100000
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|
||||||
.byte %00000000
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|
||||||
.byte %11100000
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|
||||||
.byte %00000000
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|
||||||
.byte %11100000
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|
||||||
.byte %00000000
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|
||||||
.byte %11100000
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|
||||||
.byte %00000000
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|
||||||
.byte %11100000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
|
|
||||||
.byte %11111111
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|
||||||
.byte %00000000
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|
||||||
.byte %11111111
|
|
||||||
.byte %00000000
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|
||||||
.byte %11111111
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|
||||||
.byte %00000000
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|
||||||
.byte %00000111
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|
||||||
.byte %00000000
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|
||||||
.byte %00000111
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|
||||||
.byte %00000000
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|
||||||
.byte %00000111
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|
||||||
.byte %00000000
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|
||||||
.byte %00000111
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|
||||||
.byte %00000000
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|
||||||
.byte %00000111
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
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|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
|
|
||||||
; normally you would put 14 other 8x8 tiles here, but we don't have
|
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||||||
; any, so just fill it with zeros.
|
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.repeat 14 * 32
|
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.byte 0
|
|
||||||
.endrepeat
|
|
||||||
|
|
||||||
.byte %11100000
|
|
||||||
.byte %00000000
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|
||||||
.byte %11100000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %11100000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %11100000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %11100000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %11111111
|
|
||||||
.byte %00000000
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|
||||||
.byte %11111111
|
|
||||||
.byte %00000000
|
|
||||||
.byte %11111111
|
|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
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|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
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|
||||||
.byte %00000000
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|
||||||
|
|
||||||
.byte %00000111
|
|
||||||
.byte %00000000
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|
||||||
.byte %00000111
|
|
||||||
.byte %00000000
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|
||||||
.byte %00000111
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|
||||||
.byte %00000000
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|
||||||
.byte %00000111
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|
||||||
.byte %00000000
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|
||||||
.byte %00000111
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|
||||||
.byte %00000000
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|
||||||
.byte %11111111
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|
||||||
.byte %00000000
|
|
||||||
.byte %11111111
|
|
||||||
.byte %00000000
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|
||||||
.byte %11111111
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|
||||||
.byte %00000000
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|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
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|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
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|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
|
|
||||||
.byte %00000000
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|
||||||
|
|
||||||
charset_end:
|
|
||||||
@ -1,30 +0,0 @@
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|||||||
.segment "HEADER"
|
|
||||||
|
|
||||||
.byte "GNOSTIKKA " ; ROM name, must be 21 chars
|
|
||||||
.byte $30 ; Map Mode: 3.58MHz LoROM
|
|
||||||
.byte $00 ; Cartridge Type: ROM only
|
|
||||||
.byte $08 ; ROM Size
|
|
||||||
.byte $00 ; RAM size
|
|
||||||
.byte $01 ; Destination Code: USA
|
|
||||||
.byte $33 ; Fixed value
|
|
||||||
.byte $00 ; Mask ROM Version
|
|
||||||
.word $0000 ; Complement Check
|
|
||||||
.word $0000 ; Check Sum
|
|
||||||
|
|
||||||
; native mode vectors
|
|
||||||
.word 0, 0
|
|
||||||
.addr _rti ; COP
|
|
||||||
.addr _rti ; BRK
|
|
||||||
.addr _rti ; ABORT
|
|
||||||
.addr nmi ; NMI
|
|
||||||
.addr start ; RST
|
|
||||||
.addr _rti ; IRQ
|
|
||||||
|
|
||||||
; emulation mode vectors - largely unused, since we run in native mode
|
|
||||||
.word 0, 0
|
|
||||||
.addr 0
|
|
||||||
.addr 0
|
|
||||||
.addr 0
|
|
||||||
.addr 0
|
|
||||||
.addr start ; RST
|
|
||||||
.addr 0
|
|
||||||
@ -1,49 +0,0 @@
|
|||||||
; A very simple SNES init routine
|
|
||||||
; For serious use, you probably want to do more than this
|
|
||||||
; This is simple and understandable, though
|
|
||||||
; Will leave you in A8 XY16 mode
|
|
||||||
|
|
||||||
; Disable interrupts and enable native (i.e. not 6502-emulating) mode
|
|
||||||
sei
|
|
||||||
clc
|
|
||||||
xce
|
|
||||||
cld
|
|
||||||
|
|
||||||
setAXY16
|
|
||||||
|
|
||||||
; ZeroCPU registers NMITIMEN through MEMSEL
|
|
||||||
stz $4200
|
|
||||||
stz $4202
|
|
||||||
stz $4204
|
|
||||||
stz $4206
|
|
||||||
stz $4208
|
|
||||||
stz $420A
|
|
||||||
stz $420C
|
|
||||||
|
|
||||||
lda #$0080
|
|
||||||
sta INIDISP ; Turn off screen ("forced blank")
|
|
||||||
|
|
||||||
; Zero some registers used for rendering
|
|
||||||
stz OAMADDL
|
|
||||||
stz BGMODE
|
|
||||||
stz BG1SC
|
|
||||||
stz BG3SC
|
|
||||||
stz BG12NBA
|
|
||||||
stz VMADDL
|
|
||||||
stz W12SEL
|
|
||||||
stz WH0
|
|
||||||
stz WH2
|
|
||||||
stz WBGLOG
|
|
||||||
stz TM
|
|
||||||
stz TMW
|
|
||||||
|
|
||||||
; Disable color math / etc
|
|
||||||
ldx #$0030
|
|
||||||
stx CGWSEL
|
|
||||||
ldy #$00E0
|
|
||||||
sty COLDATA
|
|
||||||
|
|
||||||
setA8
|
|
||||||
|
|
||||||
; Zero window masks
|
|
||||||
stz WOBJSEL
|
|
||||||
@ -1,17 +0,0 @@
|
|||||||
|
|
||||||
; Joypad bitmaps
|
|
||||||
|
|
||||||
|
|
||||||
JOYH_B = %10000000
|
|
||||||
JOYH_Y = %01000000
|
|
||||||
JOYH_SEL = %00100000
|
|
||||||
JOYH_START = %00010000
|
|
||||||
JOYH_UP = %00001000
|
|
||||||
JOYH_DOWN = %00000100
|
|
||||||
JOYH_LEFT = %00000010
|
|
||||||
JOYH_RIGHT = %00000001
|
|
||||||
|
|
||||||
JOYL_A = %10000000
|
|
||||||
JOYL_X = %01000000
|
|
||||||
JOYL_L = %00100000
|
|
||||||
JOYL_R = %00010000
|
|
||||||
@ -1,33 +0,0 @@
|
|||||||
MEMORY {
|
|
||||||
ZEROPAGE: start = $000000, size = $0100;
|
|
||||||
STACK: start = $000100, size = $0100;
|
|
||||||
BSS: start = $000200, size = $1E00;
|
|
||||||
BSS7E: start = $7E2000, size = $E000;
|
|
||||||
BSS7F: start = $7F0000, size =$10000;
|
|
||||||
|
|
||||||
ROM0: start = $808000, size = $8000, fill = yes;
|
|
||||||
ROM1: start = $818000, size = $8000, fill = yes;
|
|
||||||
ROM2: start = $828000, size = $8000, fill = yes;
|
|
||||||
ROM3: start = $838000, size = $8000, fill = yes;
|
|
||||||
ROM4: start = $848000, size = $8000, fill = yes;
|
|
||||||
ROM5: start = $858000, size = $8000, fill = yes;
|
|
||||||
ROM6: start = $868000, size = $8000, fill = yes;
|
|
||||||
ROM7: start = $878000, size = $8000, fill = yes;
|
|
||||||
}
|
|
||||||
|
|
||||||
SEGMENTS {
|
|
||||||
CODE: load = ROM0, align = $100;
|
|
||||||
HEADER: load = ROM0, start = $80FFC0;
|
|
||||||
CODE1: load = ROM1, align = $100, optional=yes;
|
|
||||||
CODE2: load = ROM2, align = $100, optional=yes;
|
|
||||||
CODE3: load = ROM3, align = $100, optional=yes;
|
|
||||||
CODE4: load = ROM4, align = $100, optional=yes;
|
|
||||||
CODE5: load = ROM5, align = $100, optional=yes;
|
|
||||||
CODE6: load = ROM6, align = $100, optional=yes;
|
|
||||||
CODE7: load = ROM7, align = $100, optional=yes;
|
|
||||||
|
|
||||||
ZEROPAGE: load = ZEROPAGE, type = zp, define=yes;
|
|
||||||
BSS: load = BSS, type = bss, align = $100, optional=yes;
|
|
||||||
BSS7E: load = BSS7E, type = bss, align = $100, optional=yes;
|
|
||||||
BSS7F: load = BSS7F, type = bss, align = $100, optional=yes;
|
|
||||||
}
|
|
||||||
@ -1,23 +0,0 @@
|
|||||||
.macro setA8
|
|
||||||
sep #$20
|
|
||||||
.endmacro
|
|
||||||
|
|
||||||
.macro setA16
|
|
||||||
rep #$20
|
|
||||||
.endmacro
|
|
||||||
|
|
||||||
.macro setAXY8
|
|
||||||
sep #$30
|
|
||||||
.endmacro
|
|
||||||
|
|
||||||
.macro setAXY16
|
|
||||||
rep #$30
|
|
||||||
.endmacro
|
|
||||||
|
|
||||||
.macro setXY8
|
|
||||||
sep #$10
|
|
||||||
.endmacro
|
|
||||||
|
|
||||||
.macro setXY16
|
|
||||||
rep #$10
|
|
||||||
.endmacro
|
|
||||||
@ -1,216 +0,0 @@
|
|||||||
.p816
|
|
||||||
.smart
|
|
||||||
|
|
||||||
.include "macros.inc"
|
|
||||||
.include "registers.inc"
|
|
||||||
.include "keys.inc"
|
|
||||||
|
|
||||||
.include "header.asm"
|
|
||||||
|
|
||||||
.segment "ZEROPAGE"
|
|
||||||
|
|
||||||
nmi_count: .res 2
|
|
||||||
|
|
||||||
.segment "BSS"
|
|
||||||
|
|
||||||
oam_lo_buffer: .res 512
|
|
||||||
oam_hi_buffer: .res 32
|
|
||||||
oam_buffer_end:
|
|
||||||
|
|
||||||
.segment "CODE"
|
|
||||||
|
|
||||||
VRAM_CHARS = $0000
|
|
||||||
VRAM_BG1 = $1000
|
|
||||||
|
|
||||||
start:
|
|
||||||
.include "init.asm"
|
|
||||||
|
|
||||||
; Set up the color palette
|
|
||||||
stz CGADD
|
|
||||||
|
|
||||||
; Color 0 - black
|
|
||||||
lda #$00
|
|
||||||
sta CGDATA
|
|
||||||
lda #$00
|
|
||||||
sta CGDATA
|
|
||||||
|
|
||||||
; Color 1 - red
|
|
||||||
lda #$1f
|
|
||||||
sta CGDATA
|
|
||||||
lda #$00
|
|
||||||
sta CGDATA
|
|
||||||
|
|
||||||
; Color 2 - green
|
|
||||||
lda #$e0
|
|
||||||
sta CGDATA
|
|
||||||
lda #$03
|
|
||||||
sta CGDATA
|
|
||||||
|
|
||||||
; Color 3 - blue
|
|
||||||
lda #$00
|
|
||||||
sta CGDATA
|
|
||||||
lda #$7c
|
|
||||||
sta CGDATA
|
|
||||||
|
|
||||||
; Set up sprite palette
|
|
||||||
lda #128 ;sprite palettes begin at cgdata index 128
|
|
||||||
sta CGADD
|
|
||||||
stz CGDATA
|
|
||||||
stz CGDATA
|
|
||||||
|
|
||||||
lda #$1f
|
|
||||||
sta CGDATA
|
|
||||||
stz CGDATA
|
|
||||||
|
|
||||||
; Graphics mode 0, 8x8 tiles
|
|
||||||
stz BGMODE
|
|
||||||
|
|
||||||
; Set BG1 and tile map and character data
|
|
||||||
lda #>VRAM_BG1
|
|
||||||
sta BG1SC
|
|
||||||
lda #VRAM_CHARS
|
|
||||||
sta BG12NBA
|
|
||||||
|
|
||||||
; Load character data into VRAM
|
|
||||||
lda #$80
|
|
||||||
sta VMAIN
|
|
||||||
ldx #VRAM_CHARS
|
|
||||||
stx VMADDL
|
|
||||||
|
|
||||||
; Set DMA source flags
|
|
||||||
lda #%00000001
|
|
||||||
sta DMAP0
|
|
||||||
|
|
||||||
; DMA destination VMDATAL register
|
|
||||||
lda #<VMDATAL
|
|
||||||
sta BBAD0
|
|
||||||
|
|
||||||
; Set starting address to charset
|
|
||||||
ldx #.loword(charset)
|
|
||||||
stx A1T0L
|
|
||||||
lda #^charset
|
|
||||||
sta A1B0
|
|
||||||
|
|
||||||
; Write to charset_end bytes
|
|
||||||
ldx #(charset_end - charset)
|
|
||||||
stx DAS0L
|
|
||||||
|
|
||||||
; actually kick off the DMA
|
|
||||||
lda #1
|
|
||||||
sta MDMAEN
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
; @charset_loop:
|
|
||||||
; lda charset,x
|
|
||||||
; sta VMDATAL
|
|
||||||
; inx
|
|
||||||
; lda charset,x
|
|
||||||
; sta VMDATAH
|
|
||||||
; inx
|
|
||||||
; cpx #(charset_end - charset)
|
|
||||||
; bne @charset_loop
|
|
||||||
|
|
||||||
; Manually clear screen
|
|
||||||
ldx #(VRAM_BG1)
|
|
||||||
@loop:
|
|
||||||
stx VMADDL
|
|
||||||
lda #$00
|
|
||||||
sta VMDATAL
|
|
||||||
stz VMDATAH
|
|
||||||
inx
|
|
||||||
cpx #(VRAM_BG1 + 32 * 29)
|
|
||||||
bne @loop
|
|
||||||
|
|
||||||
; write tile to position (1, 1)
|
|
||||||
TILE_X = 1
|
|
||||||
TILE_Y = 1
|
|
||||||
ldx #(VRAM_BG1 + (TILE_Y * 32) + TILE_X)
|
|
||||||
stx VMADDL
|
|
||||||
lda #$01 ; tile number
|
|
||||||
sta VMDATAL
|
|
||||||
stz VMDATAH
|
|
||||||
|
|
||||||
; Show bg1 + sprites
|
|
||||||
lda #%00010001
|
|
||||||
sta TM
|
|
||||||
|
|
||||||
lda #$0f
|
|
||||||
sta INIDISP
|
|
||||||
|
|
||||||
lda #$0
|
|
||||||
sta OBSEL
|
|
||||||
|
|
||||||
ldx #0
|
|
||||||
@zero_oam:
|
|
||||||
stz oam_lo_buffer, x
|
|
||||||
inx
|
|
||||||
cpx #(oam_buffer_end - oam_lo_buffer)
|
|
||||||
bne @zero_oam
|
|
||||||
|
|
||||||
lda #%10000001
|
|
||||||
sta NMITIMEN
|
|
||||||
|
|
||||||
mainloop:
|
|
||||||
|
|
||||||
lda nmi_count
|
|
||||||
nmi_check:
|
|
||||||
wai
|
|
||||||
cmp nmi_count
|
|
||||||
beq nmi_check
|
|
||||||
|
|
||||||
; set sprite 0 X position
|
|
||||||
ldx #$42
|
|
||||||
stx oam_lo_buffer
|
|
||||||
|
|
||||||
; set sprite 0 Y position
|
|
||||||
ldx #$69
|
|
||||||
stx oam_lo_buffer + 1
|
|
||||||
; Set sprite 0 to priority 3 and tile 0x01
|
|
||||||
ldx #((%00110000 << 8) | $0001)
|
|
||||||
stx oam_lo_buffer + 2
|
|
||||||
|
|
||||||
; Set sprite 0 to be large (16x16)
|
|
||||||
lda #%00000010
|
|
||||||
sta oam_hi_buffer
|
|
||||||
|
|
||||||
; Copy OAM data via DMA
|
|
||||||
stz OAMADDL
|
|
||||||
lda #$0
|
|
||||||
sta DMAP1
|
|
||||||
lda #<OAMDATA
|
|
||||||
sta BBAD1
|
|
||||||
ldx #.loword(oam_lo_buffer)
|
|
||||||
stx A1B1
|
|
||||||
ldx #(oam_buffer_end - oam_lo_buffer)
|
|
||||||
stx DAS1L
|
|
||||||
lda #%00000010
|
|
||||||
sta MDMAEN
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
lda JOY1L
|
|
||||||
bit #JOYL_L
|
|
||||||
beq down_not_pressed
|
|
||||||
; write tile 2 to position (4, 8)
|
|
||||||
TILE_X2= 4
|
|
||||||
TILE_Y2= 8
|
|
||||||
ldx #(VRAM_BG1 + (TILE_Y2* 32) + TILE_X2)
|
|
||||||
stx VMADDL
|
|
||||||
lda #$02
|
|
||||||
sta VMDATAL
|
|
||||||
stz VMDATAH
|
|
||||||
down_not_pressed:
|
|
||||||
|
|
||||||
bra mainloop
|
|
||||||
|
|
||||||
busywait:
|
|
||||||
bra busywait
|
|
||||||
|
|
||||||
nmi:
|
|
||||||
bit RDNMI
|
|
||||||
inc nmi_count
|
|
||||||
_rti:
|
|
||||||
rti
|
|
||||||
|
|
||||||
.include "charset.asm"
|
|
||||||
@ -1,216 +0,0 @@
|
|||||||
|
|
||||||
; SNES Register Aliases
|
|
||||||
|
|
||||||
; Address Bus B Registers
|
|
||||||
|
|
||||||
INIDISP = $2100 ; Screen Display Register single write any time
|
|
||||||
OBSEL = $2101 ; Object Size and Character Size Register single write f-blank, v-blank
|
|
||||||
OAMADDL = $2102 ; OAM Address Registers (Low) single write f-blank, v-blank
|
|
||||||
OAMADDH = $2103 ; OAM Address Registers (High) single write f-blank, v-blank
|
|
||||||
OAMDATA = $2104 ; OAM Data Write Register single write f-blank, v-blank
|
|
||||||
BGMODE = $2105 ; BG Mode and Character Size Register single write f-blank, v-blank, h-blank
|
|
||||||
MOSAIC = $2106 ; Mosaic Register single write f-blank, v-blank, h-blank
|
|
||||||
BG1SC = $2107 ; BG Tilemap Address Registers (BG1) single write f-blank, v-blank
|
|
||||||
BG2SC = $2108 ; BG Tilemap Address Registers (BG2) single write f-blank, v-blank
|
|
||||||
BG3SC = $2109 ; BG Tilemap Address Registers (BG3) single write f-blank, v-blank
|
|
||||||
BG4SC = $210A ; BG Tilemap Address Registers (BG4) single write f-blank, v-blank
|
|
||||||
BG12NBA = $210B ; BG Character Address Registers (BG1&2) single write f-blank, v-blank
|
|
||||||
BG34NBA = $210C ; BG Character Address Registers (BG3&4) single write f-blank, v-blank
|
|
||||||
BG1HOFS = $210D ; BG Scroll Registers (BG1) dual write f-blank, v-blank, h-blank
|
|
||||||
BG1VOFS = $210E ; BG Scroll Registers (BG1) dual write f-blank, v-blank, h-blank
|
|
||||||
BG2HOFS = $210F ; BG Scroll Registers (BG2) dual write f-blank, v-blank, h-blank
|
|
||||||
BG2VOFS = $2110 ; BG Scroll Registers (BG2) dual write f-blank, v-blank, h-blank
|
|
||||||
BG3HOFS = $2111 ; BG Scroll Registers (BG3) dual write f-blank, v-blank, h-blank
|
|
||||||
BG3VOFS = $2112 ; BG Scroll Registers (BG3) dual write f-blank, v-blank, h-blank
|
|
||||||
BG4HOFS = $2113 ; BG Scroll Registers (BG4) dual write f-blank, v-blank, h-blank
|
|
||||||
BG4VOFS = $2114 ; BG Scroll Registers (BG4) dual write f-blank, v-blank, h-blank
|
|
||||||
VMAIN = $2115 ; Video Port Control Register single write f-blank, v-blank
|
|
||||||
VMADDL = $2116 ; VRAM Address Registers (Low) single write f-blank, v-blank
|
|
||||||
VMADDH = $2117 ; VRAM Address Registers (High) single write f-blank, v-blank
|
|
||||||
VMDATAL = $2118 ; VRAM Data Write Registers (Low) single write f-blank, v-blank
|
|
||||||
VMDATAH = $2119 ; VRAM Data Write Registers (High) single write f-blank, v-blank
|
|
||||||
M7SEL = $211A ; Mode 7 Settings Register single write f-blank, v-blank
|
|
||||||
M7A = $211B ; Mode 7 Matrix Registers dual write f-blank, v-blank, h-blank
|
|
||||||
M7B = $211C ; Mode 7 Matrix Registers dual write f-blank, v-blank, h-blank
|
|
||||||
M7C = $211D ; Mode 7 Matrix Registers dual write f-blank, v-blank, h-blank
|
|
||||||
M7D = $211E ; Mode 7 Matrix Registers dual write f-blank, v-blank, h-blank
|
|
||||||
M7X = $211F ; Mode 7 Matrix Registers dual write f-blank, v-blank, h-blank
|
|
||||||
M7Y = $2120 ; Mode 7 Matrix Registers dual write f-blank, v-blank, h-blank
|
|
||||||
CGADD = $2121 ; CGRAM Address Register single write f-blank, v-blank, h-blank
|
|
||||||
CGDATA = $2122 ; CGRAM Data Write Register dual write f-blank, v-blank, h-blank
|
|
||||||
W12SEL = $2123 ; Window Mask Settings Registers single write f-blank, v-blank, h-blank
|
|
||||||
W34SEL = $2124 ; Window Mask Settings Registers single write f-blank, v-blank, h-blank
|
|
||||||
WOBJSEL = $2125 ; Window Mask Settings Registers single write f-blank, v-blank, h-blank
|
|
||||||
WH0 = $2126 ; Window Position Registers (WH0) single write f-blank, v-blank, h-blank
|
|
||||||
WH1 = $2127 ; Window Position Registers (WH1) single write f-blank, v-blank, h-blank
|
|
||||||
WH2 = $2128 ; Window Position Registers (WH2) single write f-blank, v-blank, h-blank
|
|
||||||
WH3 = $2129 ; Window Position Registers (WH3) single write f-blank, v-blank, h-blank
|
|
||||||
WBGLOG = $212A ; Window Mask Logic registers (BG) single write f-blank, v-blank, h-blank
|
|
||||||
WOBJLOG = $212B ; Window Mask Logic registers (OBJ) single write f-blank, v-blank, h-blank
|
|
||||||
TM = $212C ; Screen Destination Registers single write f-blank, v-blank, h-blank
|
|
||||||
TS = $212D ; Screen Destination Registers single write f-blank, v-blank, h-blank
|
|
||||||
TMW = $212E ; Window Mask Destination Registers single write f-blank, v-blank, h-blank
|
|
||||||
TSW = $212F ; Window Mask Destination Registers single write f-blank, v-blank, h-blank
|
|
||||||
CGWSEL = $2130 ; Color Math Registers single write f-blank, v-blank, h-blank
|
|
||||||
CGADSUB = $2131 ; Color Math Registers single write f-blank, v-blank, h-blank
|
|
||||||
COLDATA = $2132 ; Color Math Registers single write f-blank, v-blank, h-blank
|
|
||||||
SETINI = $2133 ; Screen Mode Select Register single write f-blank, v-blank, h-blank
|
|
||||||
MPYL = $2134 ; Multiplication Result Registers single read f-blank, v-blank, h-blank
|
|
||||||
MPYM = $2135 ; Multiplication Result Registers single read f-blank, v-blank, h-blank
|
|
||||||
MPYH = $2136 ; Multiplication Result Registers single read f-blank, v-blank, h-blank
|
|
||||||
SLHV = $2137 ; Software Latch Register single any time
|
|
||||||
OAMDATAREAD = $2138 ; OAM Data Read Register dual read f-blank, v-blank
|
|
||||||
VMDATALREAD = $2139 ; VRAM Data Read Register (Low) single read f-blank, v-blank
|
|
||||||
VMDATAHREAD = $213A ; VRAM Data Read Register (High) single read f-blank, v-blank
|
|
||||||
CGDATAREAD = $213B ; CGRAM Data Read Register dual read f-blank, v-blank
|
|
||||||
OPHCT = $213C ; Scanline Location Registers (Horizontal) dual read any time
|
|
||||||
OPVCT = $213D ; Scanline Location Registers (Vertical) dual read any time
|
|
||||||
STAT77 = $213E ; PPU Status Register single read any time
|
|
||||||
STAT78 = $213F ; PPU Status Register single read any time
|
|
||||||
APUIO0 = $2140 ; APU IO Registers single both any time
|
|
||||||
APUIO1 = $2141 ; APU IO Registers single both any time
|
|
||||||
APUIO2 = $2142 ; APU IO Registers single both any time
|
|
||||||
APUIO3 = $2143 ; APU IO Registers single both any time
|
|
||||||
WMDATA = $2180 ; WRAM Data Register single both any time
|
|
||||||
WMADDL = $2181 ; WRAM Address Registers single write any time
|
|
||||||
WMADDM = $2182 ; WRAM Address Registers single write any time
|
|
||||||
WMADDH = $2183 ; WRAM Address Registers single write any time
|
|
||||||
|
|
||||||
|
|
||||||
; Old Style Joypad Registers
|
|
||||||
|
|
||||||
JOYSER0 = $4016 ; Old Style Joypad Registers single (write) read/write any time that is not auto-joypad
|
|
||||||
JOYSER1 = $4017 ; Old Style Joypad Registers many (read) read any time that is not auto-joypad
|
|
||||||
|
|
||||||
|
|
||||||
; Internal CPU Registers
|
|
||||||
|
|
||||||
NMITIMEN = $4200 ; Interrupt Enable Register single write any time
|
|
||||||
WRIO = $4201 ; IO Port Write Register single write any time
|
|
||||||
WRMPYA = $4202 ; Multiplicand Registers single write any time
|
|
||||||
WRMPYB = $4203 ; Multiplicand Registers single write any time
|
|
||||||
WRDIVL = $4204 ; Divisor & Dividend Registers single write any time
|
|
||||||
WRDIVH = $4205 ; Divisor & Dividend Registers single write any time
|
|
||||||
WRDIVB = $4206 ; Divisor & Dividend Registers single write any time
|
|
||||||
HTIMEL = $4207 ; IRQ Timer Registers (Horizontal - Low) single write any time
|
|
||||||
HTIMEH = $4208 ; IRQ Timer Registers (Horizontal - High) single write any time
|
|
||||||
VTIMEL = $4209 ; IRQ Timer Registers (Vertical - Low) single write any time
|
|
||||||
VTIMEH = $420A ; IRQ Timer Registers (Vertical - High) single write any time
|
|
||||||
MDMAEN = $420B ; DMA Enable Register single write any time
|
|
||||||
HDMAEN = $420C ; HDMA Enable Register single write any time
|
|
||||||
MEMSEL = $420D ; ROM Speed Register single write any time
|
|
||||||
RDNMI = $4210 ; Interrupt Flag Registers single read any time
|
|
||||||
TIMEUP = $4211 ; Interrupt Flag Registers single read any time
|
|
||||||
HVBJOY = $4212 ; PPU Status Register single read any time
|
|
||||||
RDIO = $4213 ; IO Port Read Register single read any time
|
|
||||||
RDDIVL = $4214 ; Multiplication Or Divide Result Registers (Low) single read any time
|
|
||||||
RDDIVH = $4215 ; Multiplication Or Divide Result Registers (High) single read any time
|
|
||||||
RDMPYL = $4216 ; Multiplication Or Divide Result Registers (Low) single read any time
|
|
||||||
RDMPYH = $4217 ; Multiplication Or Divide Result Registers (High) single read any time
|
|
||||||
JOY1L = $4218 ; Controller Port Data Registers (Pad 1 - Low) single read any time that is not auto-joypad
|
|
||||||
JOY1H = $4219 ; Controller Port Data Registers (Pad 1 - High) single read any time that is not auto-joypad
|
|
||||||
JOY2L = $421A ; Controller Port Data Registers (Pad 2 - Low) single read any time that is not auto-joypad
|
|
||||||
JOY2H = $421B ; Controller Port Data Registers (Pad 2 - High) single read any time that is not auto-joypad
|
|
||||||
JOY3L = $421C ; Controller Port Data Registers (Pad 3 - Low) single read any time that is not auto-joypad
|
|
||||||
JOY3H = $421D ; Controller Port Data Registers (Pad 3 - High) single read any time that is not auto-joypad
|
|
||||||
JOY4L = $421E ; Controller Port Data Registers (Pad 4 - Low) single read any time that is not auto-joypad
|
|
||||||
JOY4H = $421F ; Controller Port Data Registers (Pad 4 - High) single read any time that is not auto-joypad
|
|
||||||
|
|
||||||
|
|
||||||
; DMA/HDMA Registers
|
|
||||||
|
|
||||||
DMAP0 = $4300 ; (H)DMA Control Register
|
|
||||||
BBAD0 = $4301 ; (H)DMA Destination Register
|
|
||||||
A1T0L = $4302 ; (H)DMA Source Address Registers
|
|
||||||
A1T0H = $4303 ; (H)DMA Source Address Registers
|
|
||||||
A1B0 = $4304 ; (H)DMA Source Address Registers
|
|
||||||
DAS0L = $4305 ; (H)DMA Size Registers (Low)
|
|
||||||
DAS0H = $4306 ; (H)DMA Size Registers (High)
|
|
||||||
DASB0 = $4307 ; HDMA Indirect Address Registers
|
|
||||||
A2A0L = $4308 ; HDMA Mid Frame Table Address Registers (Low)
|
|
||||||
A2A0H = $4309 ; HDMA Mid Frame Table Address Registers (High)
|
|
||||||
NTLR0 = $430A ; HDMA Line Counter Register
|
|
||||||
|
|
||||||
DMAP1 = $4310 ; (H)DMA Control Register
|
|
||||||
BBAD1 = $4311 ; (H)DMA Destination Register
|
|
||||||
A1T1L = $4312 ; (H)DMA Source Address Registers
|
|
||||||
A1T1H = $4313 ; (H)DMA Source Address Registers
|
|
||||||
A1B1 = $4314 ; (H)DMA Source Address Registers
|
|
||||||
DAS1L = $4315 ; (H)DMA Size Registers (Low)
|
|
||||||
DAS1H = $4316 ; (H)DMA Size Registers (High)
|
|
||||||
DASB1 = $4317 ; HDMA Indirect Address Registers
|
|
||||||
A2A1L = $4318 ; HDMA Mid Frame Table Address Registers (Low)
|
|
||||||
A2A1H = $4319 ; HDMA Mid Frame Table Address Registers (High)
|
|
||||||
NTLR1 = $431A ; HDMA Line Counter Register
|
|
||||||
|
|
||||||
DMAP2 = $4320 ; (H)DMA Control Register
|
|
||||||
BBAD2 = $4321 ; (H)DMA Destination Register
|
|
||||||
A1T2L = $4322 ; (H)DMA Source Address Registers
|
|
||||||
A1T2H = $4323 ; (H)DMA Source Address Registers
|
|
||||||
A1B2 = $4324 ; (H)DMA Source Address Registers
|
|
||||||
DAS2L = $4325 ; (H)DMA Size Registers (Low)
|
|
||||||
DAS2H = $4326 ; (H)DMA Size Registers (High)
|
|
||||||
DASB2 = $4327 ; HDMA Indirect Address Registers
|
|
||||||
A2A2L = $4328 ; HDMA Mid Frame Table Address Registers (Low)
|
|
||||||
A2A2H = $4329 ; HDMA Mid Frame Table Address Registers (High)
|
|
||||||
NTLR2 = $432A ; HDMA Line Counter Register
|
|
||||||
|
|
||||||
DMAP3 = $4330 ; (H)DMA Control Register
|
|
||||||
BBAD3 = $4331 ; (H)DMA Destination Register
|
|
||||||
A1T3L = $4332 ; (H)DMA Source Address Registers
|
|
||||||
A1T3H = $4333 ; (H)DMA Source Address Registers
|
|
||||||
A1B3 = $4334 ; (H)DMA Source Address Registers
|
|
||||||
DAS3L = $4335 ; (H)DMA Size Registers (Low)
|
|
||||||
DAS3H = $4336 ; (H)DMA Size Registers (High)
|
|
||||||
DASB3 = $4337 ; HDMA Indirect Address Registers
|
|
||||||
A2A3L = $4338 ; HDMA Mid Frame Table Address Registers (Low)
|
|
||||||
A2A3H = $4339 ; HDMA Mid Frame Table Address Registers (High)
|
|
||||||
NTLR3 = $433A ; HDMA Line Counter Register
|
|
||||||
|
|
||||||
DMAP4 = $4340 ; (H)DMA Control Register
|
|
||||||
BBAD4 = $4341 ; (H)DMA Destination Register
|
|
||||||
A1T4L = $4342 ; (H)DMA Source Address Registers
|
|
||||||
A1T4H = $4343 ; (H)DMA Source Address Registers
|
|
||||||
A1B4 = $4344 ; (H)DMA Source Address Registers
|
|
||||||
DAS4L = $4345 ; (H)DMA Size Registers (Low)
|
|
||||||
DAS4H = $4346 ; (H)DMA Size Registers (High)
|
|
||||||
DASB4 = $4347 ; HDMA Indirect Address Registers
|
|
||||||
A2A4L = $4348 ; HDMA Mid Frame Table Address Registers (Low)
|
|
||||||
A2A4H = $4349 ; HDMA Mid Frame Table Address Registers (High)
|
|
||||||
NTLR4 = $434A ; HDMA Line Counter Register
|
|
||||||
|
|
||||||
DMAP5 = $4350 ; (H)DMA Control Register
|
|
||||||
BBAD5 = $4351 ; (H)DMA Destination Register
|
|
||||||
A1T5L = $4352 ; (H)DMA Source Address Registers
|
|
||||||
A1T5H = $4353 ; (H)DMA Source Address Registers
|
|
||||||
A1B5 = $4354 ; (H)DMA Source Address Registers
|
|
||||||
DAS5L = $4355 ; (H)DMA Size Registers (Low)
|
|
||||||
DAS5H = $4356 ; (H)DMA Size Registers (High)
|
|
||||||
DASB5 = $4357 ; HDMA Indirect Address Registers
|
|
||||||
A2A5L = $4358 ; HDMA Mid Frame Table Address Registers (Low)
|
|
||||||
A2A5H = $4359 ; HDMA Mid Frame Table Address Registers (High)
|
|
||||||
NTLR5 = $435A ; HDMA Line Counter Register
|
|
||||||
|
|
||||||
DMAP6 = $4360 ; (H)DMA Control Register
|
|
||||||
BBAD6 = $4361 ; (H)DMA Destination Register
|
|
||||||
A1T6L = $4362 ; (H)DMA Source Address Registers
|
|
||||||
A1T6H = $4363 ; (H)DMA Source Address Registers
|
|
||||||
A1B6 = $4364 ; (H)DMA Source Address Registers
|
|
||||||
DAS6L = $4365 ; (H)DMA Size Registers (Low)
|
|
||||||
DAS6H = $4366 ; (H)DMA Size Registers (High)
|
|
||||||
DASB6 = $4367 ; HDMA Indirect Address Registers
|
|
||||||
A2A6L = $4368 ; HDMA Mid Frame Table Address Registers (Low)
|
|
||||||
A2A6H = $4369 ; HDMA Mid Frame Table Address Registers (High)
|
|
||||||
NTLR6 = $436A ; HDMA Line Counter Register
|
|
||||||
|
|
||||||
DMAP7 = $4370 ; (H)DMA Control Register
|
|
||||||
BBAD7 = $4371 ; (H)DMA Destination Register
|
|
||||||
A1T7L = $4372 ; (H)DMA Source Address Registers
|
|
||||||
A1T7H = $4373 ; (H)DMA Source Address Registers
|
|
||||||
A1B7 = $4374 ; (H)DMA Source Address Registers
|
|
||||||
DAS7L = $4375 ; (H)DMA Size Registers (Low)
|
|
||||||
DAS7H = $4376 ; (H)DMA Size Registers (High)
|
|
||||||
DASB7 = $4377 ; HDMA Indirect Address Registers
|
|
||||||
A2A7L = $4378 ; HDMA Mid Frame Table Address Registers (Low)
|
|
||||||
A2A7H = $4379 ; HDMA Mid Frame Table Address Registers (High)
|
|
||||||
NTLR7 = $437A ; HDMA Line Counter Register
|
|
||||||
18
justfile
18
justfile
@ -1,18 +0,0 @@
|
|||||||
default:
|
|
||||||
just --list
|
|
||||||
|
|
||||||
# Run homebrew ROM using mesen-s
|
|
||||||
run-homebrew: homebrew-tutorial
|
|
||||||
mesen-s ./out/main.sfc
|
|
||||||
|
|
||||||
# Build homebrew ROM in ./out
|
|
||||||
homebrew-tutorial:
|
|
||||||
mkdir -p out
|
|
||||||
ca65 ./homebrew-tutorial/main.asm -o ./out/main.o -g
|
|
||||||
ld65 -C ./homebrew-tutorial/lorom.cfg -o ./out/main.sfc ./out/main.o
|
|
||||||
|
|
||||||
greenspace_smc:
|
|
||||||
just legacy/greenspace/greenspace_smc
|
|
||||||
|
|
||||||
test_gfx:
|
|
||||||
just legacy/test_gfx/test_gfx
|
|
||||||
@ -1,4 +0,0 @@
|
|||||||
greenspace_smc:
|
|
||||||
wla-65816 -o greenspace.obj greenspace.asm
|
|
||||||
wlalink greenspace.link greenspace.smc
|
|
||||||
|
|
||||||
@ -1,55 +0,0 @@
|
|||||||
;==LoRom== ; We'll get to HiRom some other time.
|
|
||||||
|
|
||||||
.MEMORYMAP ; Begin describing the system architecture.
|
|
||||||
SLOTSIZE $8000 ; The slot is $8000 bytes in size. More details on slots later.
|
|
||||||
DEFAULTSLOT 0
|
|
||||||
SLOT 0 $8000 ; Defines Slot 0's starting address.
|
|
||||||
.ENDME ; End MemoryMap definition
|
|
||||||
|
|
||||||
.ROMBANKSIZE $8000 ; Every ROM bank is 32 KBytes in size
|
|
||||||
.ROMBANKS 8 ; 2 Mbits - Tell WLA we want to use 8 ROM Banks
|
|
||||||
|
|
||||||
.SNESHEADER
|
|
||||||
ID "SNES" ; 1-4 letter string, just leave it as "SNES"
|
|
||||||
|
|
||||||
NAME "SNES Tile Demo " ; Program Title - can't be over 21 bytes,
|
|
||||||
; "123456789012345678901" ; use spaces for unused bytes of the name.
|
|
||||||
|
|
||||||
SLOWROM
|
|
||||||
LOROM
|
|
||||||
|
|
||||||
CARTRIDGETYPE $00 ; $00 = ROM only, see WLA documentation for others
|
|
||||||
ROMSIZE $08 ; $08 = 2 Mbits, see WLA doc for more..
|
|
||||||
SRAMSIZE $00 ; No SRAM see WLA doc for more..
|
|
||||||
COUNTRY $01 ; $01 = U.S. $00 = Japan, that's all I know
|
|
||||||
LICENSEECODE $00 ; Just use $00
|
|
||||||
VERSION $00 ; $00 = 1.00, $01 = 1.01, etc.
|
|
||||||
.ENDSNES
|
|
||||||
|
|
||||||
.SNESNATIVEVECTOR ; Define Native Mode interrupt vector table
|
|
||||||
COP EmptyHandler
|
|
||||||
BRK EmptyHandler
|
|
||||||
ABORT EmptyHandler
|
|
||||||
NMI VBlank
|
|
||||||
IRQ EmptyHandler
|
|
||||||
.ENDNATIVEVECTOR
|
|
||||||
|
|
||||||
.SNESEMUVECTOR ; Define Emulation Mode interrupt vector table
|
|
||||||
COP EmptyHandler
|
|
||||||
ABORT EmptyHandler
|
|
||||||
NMI EmptyHandler
|
|
||||||
RESET Start ; where execution starts
|
|
||||||
IRQBRK EmptyHandler
|
|
||||||
.ENDEMUVECTOR
|
|
||||||
|
|
||||||
.BANK 0 SLOT 0 ; Defines the ROM bank and the slot it is inserted in memory.
|
|
||||||
.ORG 0 ; .ORG 0 is really $8000, because the slot starts at $8000
|
|
||||||
.SECTION "EmptyVectors" SEMIFREE
|
|
||||||
|
|
||||||
EmptyHandler:
|
|
||||||
rti
|
|
||||||
|
|
||||||
.ENDS
|
|
||||||
|
|
||||||
.EMPTYFILL $00 ; fill unused areas with $00, opcode for BRK.
|
|
||||||
; BRK will crash the snes if executed.
|
|
||||||
@ -1,5 +0,0 @@
|
|||||||
|
|
||||||
test_gfx:
|
|
||||||
wla-65816 -o test_gfx.obj test_gfx.asm
|
|
||||||
wlalink -r test_gfx.link test_gfx.smc
|
|
||||||
|
|
||||||
@ -1,102 +0,0 @@
|
|||||||
.MACRO Snes_Init
|
|
||||||
sei ; Disabled interrupts
|
|
||||||
clc ; clear carry to switch to native mode
|
|
||||||
xce ; Xchange carry & emulation bit. native mode
|
|
||||||
rep #$18 ; Binary mode (decimal mode off), X/Y 16 bit
|
|
||||||
ldx #$1FFF ; set stack to $1FFF
|
|
||||||
txs
|
|
||||||
|
|
||||||
jsr Init
|
|
||||||
.ENDM
|
|
||||||
|
|
||||||
.bank 0
|
|
||||||
.section "Snes_Init" SEMIFREE
|
|
||||||
Init:
|
|
||||||
sep #$30 ; X,Y,A are 8 bit numbers
|
|
||||||
lda #$8F ; screen off, full brightness
|
|
||||||
sta $2100 ; brightness + screen enable register
|
|
||||||
stz $2101 ; Sprite register (size + address in VRAM)
|
|
||||||
stz $2102 ; Sprite registers (address of sprite memory [OAM])
|
|
||||||
stz $2103 ; "" ""
|
|
||||||
stz $2105 ; Mode 0, = Graphic mode register
|
|
||||||
stz $2106 ; noplanes, no mosaic, = Mosaic register
|
|
||||||
stz $2107 ; Plane 0 map VRAM location
|
|
||||||
stz $2108 ; Plane 1 map VRAM location
|
|
||||||
stz $2109 ; Plane 2 map VRAM location
|
|
||||||
stz $210A ; Plane 3 map VRAM location
|
|
||||||
stz $210B ; Plane 0+1 Tile data location
|
|
||||||
stz $210C ; Plane 2+3 Tile data location
|
|
||||||
stz $210D ; Plane 0 scroll x (first 8 bits)
|
|
||||||
stz $210D ; Plane 0 scroll x (last 3 bits) #$0 - #$07ff
|
|
||||||
lda #$FF ; The top pixel drawn on the screen isn't the top one in the tilemap, it's the one above that.
|
|
||||||
sta $210E ; Plane 0 scroll y (first 8 bits)
|
|
||||||
sta $2110 ; Plane 1 scroll y (first 8 bits)
|
|
||||||
sta $2112 ; Plane 2 scroll y (first 8 bits)
|
|
||||||
sta $2114 ; Plane 3 scroll y (first 8 bits)
|
|
||||||
lda #$07 ; Since this could get quite annoying, it's better to edit the scrolling registers to fix this.
|
|
||||||
sta $210E ; Plane 0 scroll y (last 3 bits) #$0 - #$07ff
|
|
||||||
sta $2110 ; Plane 1 scroll y (last 3 bits) #$0 - #$07ff
|
|
||||||
sta $2112 ; Plane 2 scroll y (last 3 bits) #$0 - #$07ff
|
|
||||||
sta $2114 ; Plane 3 scroll y (last 3 bits) #$0 - #$07ff
|
|
||||||
stz $210F ; Plane 1 scroll x (first 8 bits)
|
|
||||||
stz $210F ; Plane 1 scroll x (last 3 bits) #$0 - #$07ff
|
|
||||||
stz $2111 ; Plane 2 scroll x (first 8 bits)
|
|
||||||
stz $2111 ; Plane 2 scroll x (last 3 bits) #$0 - #$07ff
|
|
||||||
stz $2113 ; Plane 3 scroll x (first 8 bits)
|
|
||||||
stz $2113 ; Plane 3 scroll x (last 3 bits) #$0 - #$07ff
|
|
||||||
lda #$80 ; increase VRAM address after writing to $2119
|
|
||||||
sta $2115 ; VRAM address increment register
|
|
||||||
stz $2116 ; VRAM address low
|
|
||||||
stz $2117 ; VRAM address high
|
|
||||||
stz $211A ; Initial Mode 7 setting register
|
|
||||||
stz $211B ; Mode 7 matrix parameter A register (low)
|
|
||||||
lda #$01
|
|
||||||
sta $211B ; Mode 7 matrix parameter A register (high)
|
|
||||||
stz $211C ; Mode 7 matrix parameter B register (low)
|
|
||||||
stz $211C ; Mode 7 matrix parameter B register (high)
|
|
||||||
stz $211D ; Mode 7 matrix parameter C register (low)
|
|
||||||
stz $211D ; Mode 7 matrix parameter C register (high)
|
|
||||||
stz $211E ; Mode 7 matrix parameter D register (low)
|
|
||||||
sta $211E ; Mode 7 matrix parameter D register (high)
|
|
||||||
stz $211F ; Mode 7 center position X register (low)
|
|
||||||
stz $211F ; Mode 7 center position X register (high)
|
|
||||||
stz $2120 ; Mode 7 center position Y register (low)
|
|
||||||
stz $2120 ; Mode 7 center position Y register (high)
|
|
||||||
stz $2121 ; Color number register ($0-ff)
|
|
||||||
stz $2123 ; BG1 & BG2 Window mask setting register
|
|
||||||
stz $2124 ; BG3 & BG4 Window mask setting register
|
|
||||||
stz $2125 ; OBJ & Color Window mask setting register
|
|
||||||
stz $2126 ; Window 1 left position register
|
|
||||||
stz $2127 ; Window 2 left position register
|
|
||||||
stz $2128 ; Window 3 left position register
|
|
||||||
stz $2129 ; Window 4 left position register
|
|
||||||
stz $212A ; BG1, BG2, BG3, BG4 Window Logic register
|
|
||||||
stz $212B ; OBJ, Color Window Logic Register (or,and,xor,xnor)
|
|
||||||
sta $212C ; Main Screen designation (planes, sprites enable)
|
|
||||||
stz $212D ; Sub Screen designation
|
|
||||||
stz $212E ; Window mask for Main Screen
|
|
||||||
stz $212F ; Window mask for Sub Screen
|
|
||||||
lda #$30
|
|
||||||
sta $2130 ; Color addition & screen addition init setting
|
|
||||||
stz $2131 ; Add/Sub sub designation for screen, sprite, color
|
|
||||||
lda #$E0
|
|
||||||
sta $2132 ; color data for addition/subtraction
|
|
||||||
stz $2133 ; Screen setting (interlace x,y/enable SFX data)
|
|
||||||
stz $4200 ; Enable V-blank, interrupt, Joypad register
|
|
||||||
lda #$FF
|
|
||||||
sta $4201 ; Programmable I/O port
|
|
||||||
stz $4202 ; Multiplicand A
|
|
||||||
stz $4203 ; Multiplier B
|
|
||||||
stz $4204 ; Multiplier C
|
|
||||||
stz $4205 ; Multiplicand C
|
|
||||||
stz $4206 ; Divisor B
|
|
||||||
stz $4207 ; Horizontal Count Timer
|
|
||||||
stz $4208 ; Horizontal Count Timer MSB (most significant bit)
|
|
||||||
stz $4209 ; Vertical Count Timer
|
|
||||||
stz $420A ; Vertical Count Timer MSB
|
|
||||||
stz $420B ; General DMA enable (bits 0-7)
|
|
||||||
stz $420C ; Horizontal DMA (HDMA) enable (bits 0-7)
|
|
||||||
stz $420D ; Access cycle designation (slow/fast rom)
|
|
||||||
cli ; Enable interrupts
|
|
||||||
rts
|
|
||||||
.ends
|
|
||||||
262
tic_tac.asm
Normal file
262
tic_tac.asm
Normal file
@ -0,0 +1,262 @@
|
|||||||
|
.include "header.inc"
|
||||||
|
.include "snes_init.asm"
|
||||||
|
.include "my_custom.asm"
|
||||||
|
|
||||||
|
.BANK 0 SLOT 0
|
||||||
|
.org 0
|
||||||
|
.section "Vblank"
|
||||||
|
|
||||||
|
VBlank:
|
||||||
|
rti
|
||||||
|
|
||||||
|
.ENDS
|
||||||
|
|
||||||
|
.BANK 0 SLOT 0
|
||||||
|
.ORG 0
|
||||||
|
.section "Main"
|
||||||
|
|
||||||
|
Start:
|
||||||
|
Snes_Init
|
||||||
|
|
||||||
|
; 16-bit xy, 8-bit a
|
||||||
|
rep #%00010000
|
||||||
|
sep #%00100000
|
||||||
|
|
||||||
|
; Load palette by writing to $2122
|
||||||
|
; .db $00, $00, $E0, $7F, $1F, $00, $FF, $03
|
||||||
|
|
||||||
|
Load_Palette_Color $00, $00
|
||||||
|
Load_Palette_Color $e0, $7f
|
||||||
|
Load_Palette_Color $1f, $00
|
||||||
|
Load_Palette_Color $ef, $0a
|
||||||
|
|
||||||
|
|
||||||
|
lda #33
|
||||||
|
sta $2121 ; address for CG RAM write
|
||||||
|
lda.l Palette2
|
||||||
|
sta $2122
|
||||||
|
lda.l Palette2 + 1
|
||||||
|
sta $2122
|
||||||
|
|
||||||
|
ldx #UntitledData
|
||||||
|
lda #:UntitledData
|
||||||
|
ldy #(15*16*2)
|
||||||
|
|
||||||
|
;$43X0 is DMA register X, X from 0 to 7
|
||||||
|
stx $4302 ;A address low byte
|
||||||
|
sta $4304 ;A address bank
|
||||||
|
sty $4305 ;number of bytes to transfer
|
||||||
|
|
||||||
|
lda #%00000001 ;set mode transfer words
|
||||||
|
sta $4300
|
||||||
|
|
||||||
|
lda #$18 ; $211[89]: VRAM data write
|
||||||
|
sta $4301 ; set destination
|
||||||
|
|
||||||
|
ldy #$0000
|
||||||
|
sty $2116
|
||||||
|
|
||||||
|
lda #%00000001
|
||||||
|
sta $420b ;start DMA
|
||||||
|
|
||||||
|
|
||||||
|
; write to BG1
|
||||||
|
|
||||||
|
lda #%10000000 ; VRAM writing mode
|
||||||
|
sta $2115
|
||||||
|
|
||||||
|
ldx #$5000
|
||||||
|
stx $2116 ; write to VRAM
|
||||||
|
|
||||||
|
;ugly code starts here - it writes the # shape I mentioned before.
|
||||||
|
.rept 2
|
||||||
|
;X|X|X
|
||||||
|
.rept 2
|
||||||
|
ldx #$0000 ; tile 0 ( )
|
||||||
|
stx $2118
|
||||||
|
ldx #$0002 ; tile 2 (|)
|
||||||
|
stx $2118
|
||||||
|
.endr
|
||||||
|
ldx #$0000
|
||||||
|
stx $2118
|
||||||
|
;first line finished, add BG's
|
||||||
|
.rept 27
|
||||||
|
stx $2118 ; X=0
|
||||||
|
.endr
|
||||||
|
;beginning of 2nd line
|
||||||
|
;-+-+-
|
||||||
|
.rept 2
|
||||||
|
ldx #$0004 ; tile 4 (-)
|
||||||
|
stx $2118
|
||||||
|
ldx #$0006 ; tile 6 (+)
|
||||||
|
stx $2118
|
||||||
|
.endr
|
||||||
|
ldx #$0004 ; tile 4 (-)
|
||||||
|
stx $2118
|
||||||
|
ldx #$0000
|
||||||
|
.rept 27
|
||||||
|
stx $2118
|
||||||
|
.endr
|
||||||
|
.endr
|
||||||
|
.rept 2
|
||||||
|
ldx #$0000 ; tile 0 ( )
|
||||||
|
stx $2118
|
||||||
|
ldx #$0002 ; tile 2 (|)
|
||||||
|
stx $2118
|
||||||
|
.endr
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
; BG2 starts at $6000
|
||||||
|
ldx #$6000
|
||||||
|
stx $2116
|
||||||
|
|
||||||
|
ldx #$000c ;and contains one tile
|
||||||
|
stx $2118 ;data for VRAM write register
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
; set up the screen
|
||||||
|
|
||||||
|
lda #%00110000 ; 16x16 tiles, mode 0
|
||||||
|
sta $2105 ; $2105 is the mode for bg mode + tile size
|
||||||
|
|
||||||
|
lda #$50 ; data starts from $4000
|
||||||
|
sta $2107 ; for bg1 ; $2107 is address of tile map location for BG1
|
||||||
|
; tile map location registers:
|
||||||
|
; %aaaaaass
|
||||||
|
; a's <- tile map address location, << 11
|
||||||
|
; ss <- 32x32, 32x64, 32x64, 64x64
|
||||||
|
|
||||||
|
lda #60 ; and $6000
|
||||||
|
sta $2108 ; for bg2 ; and $2108 is tile map location for BG2
|
||||||
|
|
||||||
|
stz $210b ; BG1 and BG2 use the $0000 tiles
|
||||||
|
|
||||||
|
lda #%00000011 ; enable bg1 and 2
|
||||||
|
sta $212C
|
||||||
|
|
||||||
|
;The PPU doesn't process the top line, so we scroll down 1 line.
|
||||||
|
rep #$20 ; 16bit a
|
||||||
|
lda #$07FF ; this is -1 for BG1
|
||||||
|
sep #$20 ; 8bit a
|
||||||
|
sta $210E ; BG1 vert scroll
|
||||||
|
xba
|
||||||
|
sta $210E
|
||||||
|
|
||||||
|
rep #$20 ; 16bit a
|
||||||
|
lda #$FFFF ; this is -1 for BG2
|
||||||
|
sep #$20 ; 8bit a
|
||||||
|
sta $2110 ; BG2 vert scroll
|
||||||
|
xba
|
||||||
|
sta $2110
|
||||||
|
|
||||||
|
lda #%00001111 ; enable screen, set brightness to 15
|
||||||
|
sta $2100
|
||||||
|
|
||||||
|
lda #%10000001 ; enable NMI and joypads
|
||||||
|
sta $4200
|
||||||
|
|
||||||
|
mainloop:
|
||||||
|
Spin_Loop $02
|
||||||
|
|
||||||
|
Reset_Palette_Offset
|
||||||
|
|
||||||
|
Load_Palette_Color $00, $00
|
||||||
|
Load_Palette_Color $e0, $7f
|
||||||
|
Load_Palette_Color $1f, $00
|
||||||
|
Load_Palette_Color $ff, $0a
|
||||||
|
|
||||||
|
lda #$00
|
||||||
|
sta $2122
|
||||||
|
lda #$00
|
||||||
|
sta $2122
|
||||||
|
lda #$e0
|
||||||
|
sta $2122
|
||||||
|
lda #$7f
|
||||||
|
sta $2122
|
||||||
|
lda #$1f
|
||||||
|
sta $2122
|
||||||
|
lda #$00
|
||||||
|
sta $2122
|
||||||
|
lda #$ff
|
||||||
|
sta $2122
|
||||||
|
lda #$0a
|
||||||
|
sta $2122
|
||||||
|
|
||||||
|
;change brightness
|
||||||
|
;lda #%00000011
|
||||||
|
;sta $2100
|
||||||
|
|
||||||
|
;lda #%00110000
|
||||||
|
;sta $2105
|
||||||
|
|
||||||
|
Spin_Loop $02
|
||||||
|
|
||||||
|
Reset_Palette_Offset
|
||||||
|
|
||||||
|
Load_Palette_Color $09, $00
|
||||||
|
Load_Palette_Color $e0, $7f
|
||||||
|
Load_Palette_Color $1f, $00
|
||||||
|
Load_Palette_Color $ff, $7f
|
||||||
|
|
||||||
|
;lda #$0f
|
||||||
|
;sta $2100
|
||||||
|
|
||||||
|
;lda #%00000000
|
||||||
|
;sta $2105
|
||||||
|
|
||||||
|
jmp mainloop
|
||||||
|
|
||||||
|
.ENDS
|
||||||
|
|
||||||
|
|
||||||
|
.BANK 1 SLOT 0
|
||||||
|
.org 0
|
||||||
|
.section "TileData"
|
||||||
|
|
||||||
|
UntitledData:
|
||||||
|
.db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00
|
||||||
|
.db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00
|
||||||
|
.db $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03
|
||||||
|
.db $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0
|
||||||
|
.db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $FF, $FF, $FF, $FF
|
||||||
|
.db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $FF, $FF, $FF, $FF
|
||||||
|
.db $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $FF, $FF, $FF, $FF
|
||||||
|
.db $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $FF, $FF, $FF, $FF
|
||||||
|
.db $00, $C0, $00, $E0, $00, $70, $00, $38, $00, $1C, $00, $0E, $00, $07, $00, $03
|
||||||
|
.db $00, $03, $00, $07, $00, $0E, $00, $1C, $00, $38, $00, $70, $00, $E0, $00, $C0
|
||||||
|
.db $00, $07, $00, $0F, $00, $18, $00, $30, $00, $60, $00, $C0, $00, $C0, $00, $C0
|
||||||
|
.db $00, $E0, $00, $F0, $00, $18, $00, $0C, $00, $06, $00, $03, $00, $03, $00, $03
|
||||||
|
.db $FC, $00, $F8, $00, $F0, $00, $E0, $00, $C0, $00, $80, $00, $00, $00, $00, $00
|
||||||
|
.db $3F, $00, $1F, $00, $0F, $00, $07, $00, $03, $00, $01, $00, $00, $00, $00, $00
|
||||||
|
.db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00
|
||||||
|
.db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00
|
||||||
|
.db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00
|
||||||
|
.db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00
|
||||||
|
.db $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03
|
||||||
|
.db $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0
|
||||||
|
.db $FF, $FF, $FF, $FF, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00
|
||||||
|
.db $FF, $FF, $FF, $FF, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00
|
||||||
|
.db $FF, $FF, $FF, $FF, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03, $03
|
||||||
|
.db $FF, $FF, $FF, $FF, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0, $C0
|
||||||
|
.db $00, $03, $00, $07, $00, $0E, $00, $1C, $00, $38, $00, $70, $00, $E0, $00, $C0
|
||||||
|
.db $00, $C0, $00, $E0, $00, $70, $00, $38, $00, $1C, $00, $0E, $00, $07, $00, $03
|
||||||
|
.db $00, $C0, $00, $C0, $00, $C0, $00, $60, $00, $30, $00, $18, $00, $0F, $00, $07
|
||||||
|
.db $00, $03, $00, $03, $00, $03, $00, $06, $00, $0C, $00, $18, $00, $F0, $00, $E0
|
||||||
|
.db $00, $00, $00, $00, $80, $00, $C0, $00, $E0, $00, $F0, $00, $F8, $00, $FC, $00
|
||||||
|
.db $00, $00, $00, $00, $01, $00, $03, $00, $07, $00, $0F, $00, $1F, $00, $3F, $00
|
||||||
|
|
||||||
|
UntitledPalette:
|
||||||
|
;color schema here is %0RRRRRBB BBBGGGGG
|
||||||
|
; final 2 bytes seem to be grid
|
||||||
|
;.db %00000000, %00000000, %11100000, %01111111, %00011111, %00000000, %00000011 %11111111
|
||||||
|
.db $00, $00, $E0, $7F, $1F, $00, $FF, $03
|
||||||
|
Palette2:
|
||||||
|
.db $E0, $7F
|
||||||
|
|
||||||
|
; 30 tiles (2 spaces)
|
||||||
|
; 480 bytes
|
||||||
|
|
||||||
|
.ENDS
|
||||||
2
tic_tac.link
Normal file
2
tic_tac.link
Normal file
@ -0,0 +1,2 @@
|
|||||||
|
[objects]
|
||||||
|
tic_tac.obj
|
||||||
Loading…
Reference in New Issue
Block a user