ref: 9ac2cea1f7b76e81def9d98761315cdf7790275a
dir: /data/sgb_ctrl_packets.asm/
; macros taken from pokered's data/sgb_packets.asm ; names taken from pandocs ; http://gbdev.gg8.se/wiki/articles/SGB_Functions#SGB_Palette_Commands sgb_pal_trn: MACRO db (SGB_PAL_TRN << 3) + 1 ds 15 ENDM sgb_mlt_req: MACRO db (SGB_MLT_REG << 3) + 1 db \1 - 1 ds 14 ENDM sgb_chr_trn: MACRO db (SGB_CHR_TRN << 3) + 1 db \1 + (\2 << 1) ds 14 ENDM sgb_pct_trn: MACRO db (SGB_PCT_TRN << 3) + 1 ds 15 ENDM sgb_mask_en: MACRO db (SGB_MASK_EN << 3) + 1 db \1 ds 14 ENDM sgb_data_snd: MACRO db (SGB_DATA_SND << 3) + 1 dw \1 ; address db \2 ; bank db \3 ; length (1-11) ENDM ; Crystal does not support SGB, so this is unused. PalTrnPacket: sgb_pal_trn MltReq1Packet: sgb_mlt_req 1 MltReq2Packet: sgb_mlt_req 2 ChrTrnPacket: sgb_chr_trn 0, 0 PctTrnPacket: sgb_pct_trn MaskEnFreezePacket: sgb_mask_en 1 MaskEnCancelPacket: sgb_mask_en 0 ; These are packets containing SNES code. ; This set of packets is found in several Japanese SGB-compatible titles. ; It appears to be part of NCL's SGB devkit. DataSndPacket1: sgb_data_snd $085d, $0, 11 db $8c ; cpx #$8c (2) db $d0, $f4 ; bne -$0c db $60 ; rts ds 7 DataSndPacket2: sgb_data_snd $0852, $0, 11 db $a9, $e7 ; lda #$e7 db $9f, $01, $c0, $7e ; sta $7ec001, x db $e8 ; inx db $e8 ; inx db $e8 ; inx db $e8 ; inx db $e0 ; cpx #$8c (1) DataSndPacket3: sgb_data_snd $0847, $0, 11 db $c4 ; cmp #$c4 (2) db $d0, $16 ; bne +$16 db $a5 ; lda dp db $cb ; wai db $c9, $05 ; cmp #$05 db $d0, $10 ; bne +$10 db $a2, $28 ; ldx #$28 DataSndPacket4: sgb_data_snd $083c, $0, 11 db $f0, $12 ; beq +$12 db $a5 ; lda dp db $c9, $c9 ; cmp #$c9 db $c8 ; iny db $d0, $1c ; bne +$1c db $a5 ; lda dp db $ca ; dex db $c9 ; cmp #$c4 (1) DataSndPacket5: sgb_data_snd $0831, $0, 11 dbw $0c, $caa5 ; tsb $caa5 db $c9, $7e ; cmp #$7e db $d0, $06 ; bne +$06 db $a5 ; lda dp db $cb ; wai db $c9, $7e ; cmp #$7e DataSndPacket6: sgb_data_snd $0826, $0, 11 db $39 ; bne +$39 (2) dbw $cd, $0c48 ; cmp $0c48 db $d0, $34 ; bne +$34 db $a5 ; lda dp db $c9, $c9 ; cmp #$c9 db $80, $d0 ; bra -$30 DataSndPacket7: sgb_data_snd $081b, $0, 11 db $ea ; nop db $ea ; nop db $ea ; nop db $ea ; nop db $ea ; nop ; $0820: db $a9, $01 ; lda #01 dbw $cd, $0c4f ; cmp $c4f db $d0 ; bne +$39 (1) DataSndPacket8: sgb_data_snd $0810, $0, 11 dbw $4c, $0820 ; jmp $0820 db $ea ; nop db $ea ; nop db $ea ; nop db $ea ; nop db $ea ; nop db $60 ; rts db $ea ; nop db $ea ; nop