2018-01-18 03:37:04 +00:00
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; macros taken from pokered's data/sgb_packets.asm
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; names taken from pandocs
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; http://gbdev.gg8.se/wiki/articles/SGB_Functions#SGB_Palette_Commands
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2018-01-18 16:16:24 +00:00
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sgb_pal_trn: MACRO
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db (SGB_PAL_TRN << 3) + 1
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ds 15
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ENDM
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sgb_mlt_req: MACRO
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db (SGB_MLT_REG << 3) + 1
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db \1 - 1
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ds 14
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ENDM
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sgb_chr_trn: MACRO
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db (SGB_CHR_TRN << 3) + 1
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db \1 + (\2 << 1)
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ds 14
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ENDM
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sgb_pct_trn: MACRO
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db (SGB_PCT_TRN << 3) + 1
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ds 15
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ENDM
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sgb_mask_en: MACRO
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db (SGB_MASK_EN << 3) + 1
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db \1
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ds 14
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ENDM
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2018-01-18 03:37:04 +00:00
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sgb_data_snd: MACRO
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2018-01-18 03:48:57 +00:00
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db (SGB_DATA_SND << 3) + 1
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2018-01-18 03:37:04 +00:00
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dw \1 ; address
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db \2 ; bank
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db \3 ; length (1-11)
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ENDM
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2018-01-18 16:16:24 +00:00
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; Crystal does not support SGB, so this is unused.
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PalTrnPacket: sgb_pal_trn
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MltReq1Packet: sgb_mlt_req 1
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MltReq2Packet: sgb_mlt_req 2
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ChrTrnPacket: sgb_chr_trn 0, 0
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PctTrnPacket: sgb_pct_trn
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MaskEnFreezePacket: sgb_mask_en 1
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MaskEnCancelPacket: sgb_mask_en 0
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2018-01-18 03:37:04 +00:00
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; These are packets containing SNES code.
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; This set of packets is found in several Japanese SGB-compatible titles.
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; It appears to be part of NCL's SGB devkit.
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DataSndPacket1:
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sgb_data_snd $085d, $0, 11
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db $8c ; cpx #$8c (2)
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db $d0, $f4 ; bne -$0c
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db $60 ; rts
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ds 7
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DataSndPacket2:
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sgb_data_snd $0852, $0, 11
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db $a9, $e7 ; lda #$e7
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db $9f, $01, $c0, $7e ; sta $7ec001, x
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db $e8 ; inx
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db $e8 ; inx
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db $e8 ; inx
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db $e8 ; inx
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db $e0 ; cpx #$8c (1)
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2018-01-19 02:48:52 +00:00
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2018-01-18 03:37:04 +00:00
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DataSndPacket3:
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sgb_data_snd $0847, $0, 11
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db $c4 ; cmp #$c4 (2)
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db $d0, $16 ; bne +$16
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db $a5 ; lda dp
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db $cb ; wai
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db $c9, $05 ; cmp #$05
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db $d0, $10 ; bne +$10
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db $a2, $28 ; ldx #$28
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2018-01-19 02:48:52 +00:00
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2018-01-18 03:37:04 +00:00
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DataSndPacket4:
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sgb_data_snd $083c, $0, 11
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db $f0, $12 ; beq +$12
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db $a5 ; lda dp
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db $c9, $c9 ; cmp #$c9
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db $c8 ; iny
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db $d0, $1c ; bne +$1c
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db $a5 ; lda dp
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db $ca ; dex
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db $c9 ; cmp #$c4 (1)
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DataSndPacket5:
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sgb_data_snd $0831, $0, 11
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dbw $0c, $caa5 ; tsb $caa5
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db $c9, $7e ; cmp #$7e
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db $d0, $06 ; bne +$06
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db $a5 ; lda dp
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db $cb ; wai
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db $c9, $7e ; cmp #$7e
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DataSndPacket6:
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sgb_data_snd $0826, $0, 11
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db $39 ; bne +$39 (2)
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dbw $cd, $0c48 ; cmp $0c48
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db $d0, $34 ; bne +$34
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db $a5 ; lda dp
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db $c9, $c9 ; cmp #$c9
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db $80, $d0 ; bra -$30
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DataSndPacket7:
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sgb_data_snd $081b, $0, 11
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db $ea ; nop
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db $ea ; nop
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db $ea ; nop
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db $ea ; nop
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db $ea ; nop
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; $0820:
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db $a9, $01 ; lda #01
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dbw $cd, $0c4f ; cmp $c4f
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db $d0 ; bne +$39 (1)
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DataSndPacket8:
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sgb_data_snd $0810, $0, 11
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dbw $4c, $0820 ; jmp $0820
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db $ea ; nop
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db $ea ; nop
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db $ea ; nop
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db $ea ; nop
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db $ea ; nop
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db $60 ; rts
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db $ea ; nop
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db $ea ; nop
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