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ISSOtm / set_data.s
Created Apr 15, 2020
Optimized GBDK lib funcs
View set_data.s
.include "global.s"
.globl .copy_vram
;; BANKED: checked
.area _BASE
ld d, #0x90
ISSOtm / hardest_part_in_lexer.c
Created Apr 11, 2020
"@ISSOtm what's the hardest part about the lexer [of RGBDS]?"
View hardest_part_in_lexer.c
#define keepOnGetc(var, handle) \
do { \
(var) = fgetc(handle); \
} while ((var) == EOF && ferror(handle) && errno == EINTR)
/* Pointer to chars to inject in lexer input */
static char const *insertPtr = NULL;
/* TODO: this doesn't handle interactive buffers; should it try to? */
ISSOtm / popslide.asm
Created Apr 10, 2020
Sample from a VBlank handler to transfer tiles using "popslide"
View popslide.asm
push de
ld [wSP], sp
ldh a, [hVRAMCopySrc]
ld l, a
ldh a, [hVRAMCopySrc+1]
ld h, a
ld sp, hl
ldh a, [hVRAMCopyDest]
ld l, a
ldh a, [hVRAMCopyDest+1]
ISSOtm / make_compare.log
Last active Apr 2, 2020
As of commit c87f8512a4d736a847dbc69e09c781a29eeaa638. Forget that it didn't build `tools/gfx`, that's intended :p
View make_compare.log
make: Entering directory '/home/issotm/rgbds/test/pokecrystal/tools' gcc -O3 -std=c99 -Wall -Wextra -Wno-missing-field-initializers -o lzcomp lzcomp.c gcc -O3 -std=c99 -Wall -Wextra -Wno-missing-field-initializers -o png_dimensions png_dimensions.c gcc -O3 -std=c99 -Wall -Wextra -Wno-missing-field-initializers -o scan_includes scan_includes.c gcc -O3 -std=c99 -Wall -Wextra -Wno-missing-field-initializers -o palette palette.c gcc -O3 -std=c99 -Wall -Wextra -Wno-missing-field-initializers -o pokemon_animation pokemon_animation.c gcc -O3 -std=c99 -Wall -Wextra -Wno-missing-field-initializers -o pokemon_animation_graphics pokemon_animation_graphics.c gcc -O3 -std=c99 -Wall -Wextra -Wno-missing-field-initializers -o md5 md5.c make: Leaving directory '/home/issotm/rgbds/test/pokecrystal/tools'
rgbasm -L -o audio.o audio.asm
rgbasm -L -o home.o home.asm
rgbgfx -o gfx/sgb/sgb_border.2bpp gfx/sgb/sgb_border.png
tools/gfx --trim-whitespace -o gfx/sgb/sgb_border.2bpp gfx/sgb/sgb_border.2bpp
==2645597== Memcheck, a me
ISSOtm / change.log
Created Mar 31, 2020
WIP changelog for RGBDS 0.4.0
View change.log
added long options
removed undefined behavior in a couple places, improves reliability across systems
nightlies builds now available on GitHub
**deprecated colon-less non-local labels**
deprecated `GLOBAL` and `XDEF` keywords
deprecated `OPT z` in favor of new `OPT p`
removed deprecated `IMPORT` keyword
ISSOtm / vblank_copy.asm
Created Mar 31, 2020
Help me code golf this pls
View vblank_copy.asm
jr z, .noVRAMTransfer ; This JR is out of range
ld c, a
ldh a, [hConsoleType]
and a
jr z, .GDMA
ld [wSP], sp
ldh a, [hVRAMCopySrc]
ld l, a
ldh a, [hVRAMCopySrc+1]
ld h, a
ISSOtm / language_menu.asm
Last active Mar 30, 2020
Menu system, designed for Motherboard GB, and ported elsewhere...
View language_menu.asm
SECTION "Language menu header", ROMX
db BANK("Language menu")
dw LanguageMenuInit
db 0 ; Prevent repeat press
dw 0, 0, 0, ForceMenuValidation, 0, 0, 0, 0
db 0 ; Previous item
ISSOtm / core.asm.diff
Last active Mar 15, 2020
Partial add of Hail to Pokémon Crystal
View core.asm.diff
diff --git a/engine/battle/core.asm b/engine/battle/core.asm
index f8d99b24e..f56744186 100644
--- a/engine/battle/core.asm
+++ b/engine/battle/core.asm
@@ -1690,8 +1690,11 @@ HandleWeather:
call .PrintWeatherMessage
ld a, [wBattleWeather]
+ jr z, .hailOrSandstorm
ISSOtm / getname.asm
Created Mar 14, 2020
pokered's `GetName` but with fallback
View getname.asm
dbbw BANK(TrainerNames), ?, MonsterNames ; Bank doesn't matter
dbbw BANK(MoveNames), ?, MoveNames
dbbw BANK(UnusedNames), 0, UnusedNames
dbbw BANK(ItemNames), ?, ItemNames
dbbw BANK(wPartyMonOT), 6, wPartyMonOT
dbbw BANK(wEnemyMonOT), 6, wEnemyMonOT
dbbw BANK(TrainerNames), ?, TrainerNames
ISSOtm / gbdiff.bash
Created Jan 26, 2020
Bash script for diffing Game Boy ROMs. Requires `diff` and `xxd`! Outputs GB addresses instead of ROM offsets, and tries to use SYM files to provide label locations as well.
View gbdiff.bash
diff <(xxd $1) <(xxd $2) | while read -r LINE; do
if [ $STATE -eq 0 ]; then
# Discard first line (line info)
elif [ "$LINE" = '---' ]; then
# Separator between files switches states
echo $LINE
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