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Yu-Gi-Oh! Monster Capsule GB/ROM map
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The following article is a ROM map for Yu-Gi-Oh! Monster Capsule GB.
Bank 0
rst
rst 18 - jump to: hl += a
ROM0:0018 18 65 jr 007F
hl += a
ROM0:007F 85 add l ;a += l ROM0:0080 30 01 jr nc,0083 ;if there's no carry after a += l, skip next instruction ROM0:0082 24 inc h ;h++ ROM0:0083 6F ld l,a ;l = a ROM0:0084 C9 ret
ROM0:02BA F0 40 ld a,(ff00+40) ROM0:02BC CB 7F bit 7,a ROM0:02BE C8 ret z ROM0:02BF C5 push bc ROM0:02C0 D5 push de ROM0:02C1 E5 push hl ROM0:02C2 F0 9F ld a,(ff00+9F) ROM0:02C4 CB 67 bit 4,a ROM0:02C6 C4 9F 0D call nz,0D9F ROM0:02C9 CD B7 18 call 18B7 ROM0:02CC CD 62 1B call 1B62 ROM0:02CF F0 9F ld a,(ff00+9F) ROM0:02D1 F6 80 or a,80 ROM0:02D3 E0 9F ld (ff00+9F),a ROM0:02D5 76 halt ROM0:02D6 00 nop ROM0:02D7 F0 9F ld a,(ff00+9F) ROM0:02D9 CB 7F bit 7,a ROM0:02DB 20 F8 jr nz,02D5 ROM0:02DD E1 pop hl ROM0:02DE D1 pop de ROM0:02DF C1 pop bc ROM0:02E0 C9 ret
Load intro
ROM0:2B4D 3E FF ld a,FF ROM0:2B4F EA 01 C2 ld (C201),a ROM0:2B52 EA BD C2 ld (C2BD),a ROM0:2B55 3E 09 ld a,00 ROM0:2B57 EA 00 C2 ld (C200),a ;Intro ROM0:2B5A F0 96 ld a,(ff00+96) ROM0:2B5C F6 02 or a,02 ROM0:2B5E E0 96 ld (ff00+96),a ROM0:2B60 CD 62 32 call 3262 ROM0:2B63 CD 46 0A call 0A46
Load requested screen
ROM0:2C26 FA 00 C2 ld a,(C200) ;Screen ID ROM0:2C29 4F ld c,a ROM0:2C2A 87 add a ROM0:2C2B 81 add c ROM0:2C2C 21 92 2C ld hl,2C92 ROM0:2C2F 06 00 ld b,00 ROM0:2C31 4F ld c,a ROM0:2C32 09 add hl,bc ;hl = 0x2C92 + (Screen ID × 3) ROM0:2C33 2A ldi a,(hl) ROM0:2C34 4F ld c,a ROM0:2C35 2A ldi a,(hl) ROM0:2C36 47 ld b,a ROM0:2C37 2A ldi a,(hl) ;Load pointer + bank ROM0:2C38 CD ED 0A call 0AED ;Bank switch ROM0:2C3B 69 ld l,c ROM0:2C3C 60 ld h,b ROM0:2C3D 01 42 2C ld bc,2C42 ROM0:2C40 C5 push bc ROM0:2C41 E9 jp hl ;Jump to pointer ROM0:2C42 CD BA 02 call 02BA ROM0:2C45 CD 69 22 call 2269 ROM0:2C48 CD 2E 32 call 322E ROM0:2C4B FA 01 C2 ld a,(C201) ROM0:2C4E FE FF cp a,FF ROM0:2C50 28 D4 jr z,2C26 ROM0:2C52 FA 01 C2 ld a,(C201) ROM0:2C55 EA 00 C2 ld (C200),a ROM0:2C58 3E FF ld a,FF ROM0:2C5A EA 01 C2 ld (C201),a ROM0:2C5D F0 96 ld a,(ff00+96) ROM0:2C5F CB 7F bit 7,a ROM0:2C61 28 13 jr z,2C76 ROM0:2C63 FA 00 C2 ld a,(C200) ROM0:2C66 FE 07 cp a,07 ROM0:2C68 28 0C jr z,2C76 ROM0:2C6A FE 08 cp a,08 ROM0:2C6C 28 08 jr z,2C76 ROM0:2C6E FE 05 cp a,05 ROM0:2C70 CC 89 2C call z,2C89 ROM0:2C73 CD 58 0D call 0D58 ROM0:2C76 CD 46 0A call 0A46 ROM0:2C79 7F ld a,a ROM0:2C7A 45 ld b,l ROM0:2C7B 03 inc bc ROM0:2C7C FA 00 C2 ld a,(C200) ROM0:2C7F B7 or a ROM0:2C80 C2 99 2B jp nz,2B99 ROM0:2C83 CD 58 0D call 0D58 ROM0:2C86 C3 5A 2B jp 2B5A ROM0:2C89 3E 49 ld a,49 ROM0:2C8B CD 8C 16 call 168C ROM0:2C8E CD 42 16 call 1642 ROM0:2C91 C9 ret
Screen pointers and banks
ROM0:2C92 B0 2C 00 - Intro 7B 40 18 F9 4B 18 AE 49 18 16 44 02 00 40 01 00 40 01 05 40 08 14 40 08 8C 51 03 - Sound test 05 03 08
0:3B77 (Load soundtrack ?)
ROM0:3B77 F5 push af ROM0:3B78 C5 push bc ROM0:3B79 47 ld b,a ;b = soundtrack_id ROM0:3B7A F0 95 ld a,(ff00+95) ROM0:3B7C F5 push af ROM0:3B7D CD FA 0A call 0AFA ROM0:3B80 78 ld a,b ROM0:3B81 CD 8B 3B call 3B8B ROM0:3B84 F1 pop af ROM0:3B85 CD 12 0B call 0B12 ROM0:3B88 C1 pop bc ROM0:3B89 F1 pop af ROM0:3B8A C9 ret
0:3B8B
ROM0:3B8B F5 push af ROM0:3B8C F0 94 ld a,(ff00+94) ROM0:3B8E EA 25 A7 ld (A725),a ROM0:3B91 F1 pop af ROM0:3B92 E5 push hl ROM0:3B93 21 DC FF ld hl,FFDC ROM0:3B96 CB CE set 1,(hl) ROM0:3B98 D5 push de ROM0:3B99 C5 push bc ROM0:3B9A F5 push af ROM0:3B9B CD 1B 3C call 3C1B ROM0:3B9E FA 25 A7 ld a,(A725) ROM0:3BA1 E0 94 ld (ff00+94),a ROM0:3BA3 EA 00 20 ld (2000),a ROM0:3BA6 F1 pop af ROM0:3BA7 C1 pop bc ROM0:3BA8 D1 pop de ROM0:3BA9 21 DC FF ld hl,FFDC ROM0:3BAC CB 8E res 1,(hl) ROM0:3BAE E1 pop hl ROM0:3BAF C9 ret
0:3C1B - write soundtrack_id in SRAM sA709, and ?
ROM0:3C1B EA 09 A7 ld (A709),a ;write soundtrack_id in SRAM sA709 ROM0:3C1E B7 or a ROM0:3C1F 20 11 jr nz,3C32 ROM0:3C21 EA 26 A7 ld (A726),a ROM0:3C24 3E 1D ld a,1D ROM0:3C26 E0 94 ld (ff00+94),a ROM0:3C28 EA 00 20 ld (2000),a ROM0:3C2B C3 73 48 jp 4873 ROM0:3C2E EA 1C A7 ld (A71C),a ROM0:3C31 C9 ret
0:3C32
ROM0:3C32 21 1B A7 ld hl,A71B ROM0:3C35 CB 46 bit 0,(hl) ROM0:3C37 20 F5 jr nz,3C2E ROM0:3C39 CB 7F bit 7,a ROM0:3C3B 28 0C jr z,3C49 ROM0:3C3D 47 ld b,a ROM0:3C3E FA 26 A7 ld a,(A726) ROM0:3C41 B8 cp b ROM0:3C42 20 01 jr nz,3C45 ROM0:3C44 C9 ret
0:3C32 - setting debug values in SRAM for playing soundtrack in Sound Test ?
ROM0:3C45 78 ld a,b ;a = soundtrack_id ROM0:3C46 EA 26 A7 ld (A726),a ;sA726 = soundtrack_id ROM0:3C49 AF xor a ROM0:3C4A EA 17 A7 ld (A717),a ROM0:3C4D FA 1A A7 ld a,(A71A) ROM0:3C50 CB 47 bit 0,a ROM0:3C52 20 1D jr nz,3C71 ROM0:3C54 FA 0A A7 ld a,(A70A) ROM0:3C57 B7 or a ROM0:3C58 28 0D jr z,3C67 ROM0:3C5A CB 47 bit 0,a ROM0:3C5C 28 13 jr z,3C71 ROM0:3C5E CB 87 res 0,a ROM0:3C60 CB C7 set 0,a ROM0:3C62 EA 0A A7 ld (A70A),a ROM0:3C65 18 0A jr 3C71 ROM0:3C67 0E 24 ld c,24 ROM0:3C69 F2 ld a,(ff00+c) ROM0:3C6A FE 77 cp a,77 ROM0:3C6C 28 03 jr z,3C71 ROM0:3C6E 3E 77 ld a,77 ROM0:3C70 E2 ld (ff00+c),a ROM0:3C71 FA 09 A7 ld a,(A709) ;a = soundtrack_id ROM0:3C74 47 ld b,a ROM0:3C75 FE 80 cp a,80 ROM0:3C77 30 0D jr nc,3C86 ;if (soundtrack_id > 0x80, jump to 0x3C86) ROM0:3C79 3E 1D ld a,1D ROM0:3C7B E0 94 ld (ff00+94),a ROM0:3C7D EA 00 20 ld (2000),a ;ROM Bank switch to 0x1D ROM0:3C80 78 ld a,b ROM0:3C81 21 FE 3F ld hl,3FFE ;hl = 0x3FFE ROM0:3C84 18 20 jr 3CA6 ROM0:3C86 FE C0 cp a,C0 ROM0:3C88 30 0F jr nc,3C99 ;if (soundtrack_id > 0xC0, jump to 0x3C99); Battle OSTs, Dungeon world OSTs, testing sounds ROM0:3C8A 3E 1E ld a,1E ROM0:3C8C E0 94 ld (ff00+94),a ROM0:3C8E EA 00 20 ld (2000),a ;ROM Bank switch to 0x1E ROM0:3C91 78 ld a,b ROM0:3C92 21 FE 3F ld hl,3FFE ;hl = 0x3FFE ROM0:3C95 D6 80 sub a,80 ;soundtrack_id -= 0x80 ROM0:3C97 18 0D jr 3CA6 ROM0:3C99 3E 1F ld a,1F ROM0:3C9B E0 94 ld (ff00+94),a ROM0:3C9D EA 00 20 ld (2000),a ;ROM Bank switch to 0x1F ROM0:3CA0 78 ld a,b ROM0:3CA1 21 FE 3F ld hl,3FFE ;hl = 0x3FFE ROM0:3CA4 D6 C0 sub a,C0 ;soundtrack_id -= 0xC0 ROM0:3CA6 CD 11 3F call 3F11 ROM0:3CA9 2A ldi a,(hl) ROM0:3CAA EA 08 A7 ld (A708),a ROM0:3CAD 46 ld b,(hl) ROM0:3CAE 23 inc hl ROM0:3CAF 5D ld e,l ROM0:3CB0 54 ld d,h ROM0:3CB1 21 00 A0 ld hl,A000 ROM0:3CB4 CB 08 rrc b ROM0:3CB6 DC 63 3D call c,3D63 ROM0:3CB9 24 inc h ROM0:3CBA CB 08 rrc b ROM0:3CBC DC 63 3D call c,3D63 ROM0:3CBF 24 inc h ROM0:3CC0 CB 08 rrc b ROM0:3CC2 DC 63 3D call c,3D63 ROM0:3CC5 78 ld a,b ROM0:3CC6 07 rlca ROM0:3CC7 07 rlca ROM0:3CC8 07 rlca ROM0:3CC9 47 ld b,a ROM0:3CCA 21 00 A0 ld hl,A000 ROM0:3CCD CB 38 srl b ROM0:3CCF DC 68 3D call c,3D68 ROM0:3CD2 21 00 A1 ld hl,A100 ROM0:3CD5 CB 38 srl b ROM0:3CD7 DC 68 3D call c,3D68 ROM0:3CDA 21 00 A2 ld hl,A200 ROM0:3CDD CB 38 srl b ROM0:3CDF DC 68 3D call c,3D68 ROM0:3CE2 AF xor a ROM0:3CE3 EA 10 A7 ld (A710),a ROM0:3CE6 CB 38 srl b ROM0:3CE8 D0 ret nc ROM0:3CE9 21 00 A3 ld hl,A300 ROM0:3CEC FA 08 A7 ld a,(A708) ROM0:3CEF BE cp (hl) ROM0:3CF0 D8 ret c ROM0:3CF1 FA 0A A7 ld a,(A70A) ROM0:3CF4 B7 or a ROM0:3CF5 20 06 jr nz,3CFD ROM0:3CF7 EA 0B A7 ld (A70B),a ROM0:3CFA EA 0C A7 ld (A70C),a ROM0:3CFD AF xor a ROM0:3CFE EA 0D A7 ld (A70D),a ROM0:3D01 EA 06 A7 ld (A706),a ROM0:3D04 CD 1D 3D call 3D1D ROM0:3D07 CB 38 srl b ROM0:3D09 21 00 A4 ld hl,A400 ROM0:3D0C DC 1D 3D call c,3D1D ROM0:3D0F CB 38 srl b ROM0:3D11 21 00 A5 ld hl,A500 ROM0:3D14 DC 1D 3D call c,3D1D ROM0:3D17 CB 38 srl b ROM0:3D19 21 00 A6 ld hl,A600 ROM0:3D1C D0 ret nc ROM0:3D1D FA 08 A7 ld a,(A708) ROM0:3D20 22 ldi (hl),a ROM0:3D21 FA 09 A7 ld a,(A709) ROM0:3D24 22 ldi (hl),a ROM0:3D25 1A ld a,(de) ROM0:3D26 22 ldi (hl),a ROM0:3D27 13 inc de ROM0:3D28 1A ld a,(de) ROM0:3D29 13 inc de ROM0:3D2A 22 ldi (hl),a ROM0:3D2B 3E 01 ld a,01 ROM0:3D2D 22 ldi (hl),a ROM0:3D2E AF xor a ROM0:3D2F 22 ldi (hl),a ROM0:3D30 22 ldi (hl),a ROM0:3D31 22 ldi (hl),a ROM0:3D32 77 ld (hl),a ROM0:3D33 2E 14 ld l,14 ROM0:3D35 77 ld (hl),a ROM0:3D36 2E 24 ld l,24 ROM0:3D38 22 ldi (hl),a ROM0:3D39 22 ldi (hl),a ROM0:3D3A 22 ldi (hl),a ROM0:3D3B 22 ldi (hl),a ROM0:3D3C 22 ldi (hl),a ROM0:3D3D 22 ldi (hl),a ROM0:3D3E 77 ld (hl),a ROM0:3D3F 2E 48 ld l,48 ROM0:3D41 22 ldi (hl),a ROM0:3D42 22 ldi (hl),a ROM0:3D43 22 ldi (hl),a ROM0:3D44 22 ldi (hl),a ROM0:3D45 22 ldi (hl),a ROM0:3D46 22 ldi (hl),a ROM0:3D47 22 ldi (hl),a ROM0:3D48 77 ld (hl),a ROM0:3D49 2E 1F ld l,1F ROM0:3D4B 22 ldi (hl),a ROM0:3D4C 22 ldi (hl),a ROM0:3D4D 22 ldi (hl),a ROM0:3D4E 77 ld (hl),a ROM0:3D4F 2E 51 ld l,51 ROM0:3D51 22 ldi (hl),a ROM0:3D52 22 ldi (hl),a ROM0:3D53 22 ldi (hl),a ROM0:3D54 22 ldi (hl),a ROM0:3D55 22 ldi (hl),a ROM0:3D56 22 ldi (hl),a ROM0:3D57 77 ld (hl),a ROM0:3D58 EA 1C A7 ld (A71C),a ROM0:3D5B EA 1B A7 ld (A71B),a ROM0:3D5E 3D dec a ROM0:3D5F EA 0F A7 ld (A70F),a ROM0:3D62 C9 ret
0:3F11 - Load pointer to Soundtrack from the start of loaded ROM Bank
ROM0:3F11 CB 27 sla a ;a = soundtrack_id << 1 ROM0:3F13 06 00 ld b,00 ROM0:3F15 CB 10 rl b ROM0:3F17 4F ld c,a ROM0:3F18 09 add hl,bc ROM0:3F19 2A ldi a,(hl) ROM0:3F1A 66 ld h,(hl) ;hl = 0x3FFE + [soundtrack_id << 2 | soundtrack_id << 1] ROM0:3F1B 6F ld l,a ROM0:3F1C C9 ret
Bank 1
1:4004
ROM1:4004 CD 46 6E call 6E46 ROM1:4007 CD 9C 58 call 589C ROM1:400A CF rst 08 => to 1:40BE
1:40BE
ROM1:40BE FA FE C3 ld a,(C3FE) ROM1:40C1 E6 80 and a,80 ROM1:40C3 C0 ret nz ROM1:40C4 CD 33 4E call 4E33 ROM1:40C7 CD 46 0A call 0A46 ROM1:40CA 69 ld l,c ROM1:40CB 40 ld b,b ROM1:40CC 03 inc bc ROM1:40CD FE FF cp a,FF ROM1:40CF 28 1B jr z,40EC ROM1:40D1 47 ld b,a ROM1:40D2 FA 3F C6 ld a,(C63F) ROM1:40D5 E6 F7 and a,F7 ROM1:40D7 EA 3F C6 ld (C63F),a ROM1:40DA FA 32 C4 ld a,(C432) ROM1:40DD EA 33 C4 ld (C433),a ROM1:40E0 FA 5B C6 ld a,(C65B) ROM1:40E3 B8 cp b ROM1:40E4 D8 ret c ROM1:40E5 FA 5C C6 ld a,(C65C) ROM1:40E8 3C inc a ROM1:40E9 C3 3F 40 jp 403F ROM1:40EC F0 AA ld a,(ff00+AA) ROM1:40EE E6 F0 and a,F0 ROM1:40F0 28 08 jr z,40FA ROM1:40F2 3E 10 ld a,10 ROM1:40F4 CD 23 40 call 4023 ROM1:40F7 C3 04 40 jp 4004 ROM1:40FA F0 A9 ld a,(ff00+A9) ROM1:40FC E6 0F and a,0F ROM1:40FE 28 08 jr z,4108 ROM1:4100 3E 20 ld a,20 ROM1:4102 CD 23 40 call 4023 ROM1:4105 C3 04 40 jp 4004 ROM1:4108 FA AF C2 ld a,(C2AF) ROM1:410B E6 0F and a,0F ROM1:410D FE 02 cp a,02 ROM1:410F 28 0F jr z,4120 ROM1:4111 FA D6 C2 ld a,(C2D6) ROM1:4114 B7 or a ROM1:4115 C8 ret z ROM1:4116 CD 32 4C call 4C32 ROM1:4119 CD 46 0A call 0A46 ROM1:411C ED - ROM1:411D 60 ld h,b ROM1:411E 02 ld (bc),a ROM1:411F C9 ret
1:4E33
ROM1:4E33 F0 A0 ld a,(ff00+A0) ROM1:4E35 E6 1F and a,1F ROM1:4E37 C0 ret nz ROM1:4E38 FA B0 C2 ld a,(C2B0) ROM1:4E3B E6 F0 and a,F0 ROM1:4E3D FE 00 cp a,00 ROM1:4E3F C0 ret nz ROM1:4E40 F0 9F ld a,(ff00+9F) ROM1:4E42 E6 20 and a,20 ROM1:4E44 C0 ret nz ROM1:4E45 3E 03 ld a,03 ROM1:4E47 CD 46 0A call 0A46 ROM1:4E4A 6A ld l,d ROM1:4E4B 63 ld h,e ROM1:4E4C 02 ld (bc),a ROM1:4E4D B7 or a ROM1:4E4E C0 ret nz ROM1:4E4F CD 9E 4E call 4E9E ROM1:4E52 B7 or a ROM1:4E53 C8 ret z ROM1:4E54 CD 46 0A call 0A46 ROM1:4E57 6A ld l,d ROM1:4E58 63 ld h,e ROM1:4E59 02 ld (bc),a ROM1:4E5A 21 76 C6 ld hl,C676 ROM1:4E5D DF rst 18 ROM1:4E5E 7E ld a,(hl) ROM1:4E5F CD 8C 4E call 4E8C ROM1:4E62 CD CB 4E call 4ECB ROM1:4E65 B7 or a ROM1:4E66 C8 ret z ROM1:4E67 47 ld b,a ROM1:4E68 3E 03 ld a,03 ROM1:4E6A CD 46 0A call 0A46 ROM1:4E6D 6A ld l,d ROM1:4E6E 63 ld h,e ROM1:4E6F 02 ld (bc),a ROM1:4E70 B7 or a ROM1:4E71 3E 00 ld a,00 ROM1:4E73 20 07 jr nz,4E7C ROM1:4E75 78 ld a,b ROM1:4E76 CD 46 0A call 0A46 ROM1:4E79 6A ld l,d ROM1:4E7A 63 ld h,e ROM1:4E7B 02 ld (bc),a ROM1:4E7C 11 79 C6 ld de,C679 ROM1:4E7F E7 rst 20 ROM1:4E80 1A ld a,(de) ROM1:4E81 CD FD 4D call 4DFD ROM1:4E84 B7 or a ROM1:4E85 C0 ret nz ROM1:4E86 3E 01 ld a,01 ROM1:4E88 CD 3D 4F call 4F3D ROM1:4E8B C9 ret
1:4E8C
ROM1:4E8C F5 push af ROM1:4E8D C5 push bc ROM1:4E8E 01 12 00 ld bc,0012 ROM1:4E91 21 A3 B0 ld hl,B0A3 ROM1:4E94 B7 or a ROM1:4E95 28 04 jr z,4E9B ROM1:4E97 09 add hl,bc ROM1:4E98 3D dec a ROM1:4E99 20 FC jr nz,4E97 ROM1:4E9B C1 pop bc ROM1:4E9C F1 pop af ROM1:4E9D C9 ret
1:4F6E
ROM1:4F6E 21 A3 B0 ld hl,B0A3 ROM1:4F71 06 0B ld b,0B ;b = 11 ROM1:4F73 0E 00 ld c,00 ;c = 0 ROM1:4F75 7E ld a,(hl) ROM1:4F76 E6 60 and a,60 ROM1:4F78 FE 60 cp a,60 ROM1:4F7A 20 10 jr nz,4F8C ;if either bits 6 or 7 of sB0A3 are not set, jump to 1:4F8C ROM1:4F7C CD 9E 4F call 4F9E ROM1:4F7F 0C inc c ROM1:4F80 B7 or a ROM1:4F81 28 09 jr z,4F8C ROM1:4F83 7E ld a,(hl) ROM1:4F84 E6 04 and a,04 ROM1:4F86 C4 DC 4F call nz,4FDC ROM1:4F89 CD DC 4F call 4FDC ROM1:4F8C 3E 12 ld a,12 ROM1:4F8E DF rst 18 ;hl += 0x12 ROM1:4F8F 05 dec b ;b-- ROM1:4F90 20 E3 jr nz,4F75 ;loop to 1:4F75 if b ≠ 0 ROM1:4F92 79 ld a,c ROM1:4F93 B7 or a ROM1:4F94 C8 ret z ROM1:4F95 FA A1 B0 ld a,(B0A1) ROM1:4F98 F6 80 or a,80 ROM1:4F9A EA A1 B0 ld (B0A1),a ;sB0A1 | 0x80 ROM1:4F9D C9 ret
1:4F9E
ROM1:4F9E C5 push bc ROM1:4F9F D5 push de ROM1:4FA0 E5 push hl ROM1:4FA1 CD 27 50 call 5027 ROM1:4FA4 B7 or a ROM1:4FA5 28 1A jr z,4FC1 ROM1:4FA7 4F ld c,a ROM1:4FA8 7E ld a,(hl) ROM1:4FA9 E6 04 and a,04 ROM1:4FAB 28 0A jr z,4FB7 ROM1:4FAD CD 47 50 call 5047 ROM1:4FB0 CD 47 50 call 5047 ROM1:4FB3 3E 01 ld a,01 ROM1:4FB5 18 21 jr 4FD8 ROM1:4FB7 79 ld a,c ROM1:4FB8 E6 01 and a,01 ROM1:4FBA CC 47 50 call z,5047 ROM1:4FBD 3E 01 ld a,01 ROM1:4FBF 18 17 jr 4FD8 ROM1:4FC1 CD 35 50 call 5035 ROM1:4FC4 78 ld a,b ROM1:4FC5 B7 or a ROM1:4FC6 28 07 jr z,4FCF ROM1:4FC8 CD F5 4F call 4FF5 ROM1:4FCB 3E 01 ld a,01 ROM1:4FCD 18 09 jr 4FD8 ROM1:4FCF 7E ld a,(hl) ROM1:4FD0 E6 DB and a,DB ROM1:4FD2 77 ld (hl),a ROM1:4FD3 3E 11 ld a,11 ROM1:4FD5 DF rst 18 ROM1:4FD6 AF xor a ROM1:4FD7 77 ld (hl),a ROM1:4FD8 E1 pop hl ROM1:4FD9 D1 pop de ROM1:4FDA C1 pop bc ROM1:4FDB C9 ret
1:5027
ROM1:5027 E5 push hl ROM1:5028 3E 0F ld a,0F ROM1:502A DF rst 18 ROM1:502B 7E ld a,(hl) ROM1:502C 3D dec a ROM1:502D 22 ldi (hl),a ROM1:502E 46 ld b,(hl) ROM1:502F 20 02 jr nz,5033 ROM1:5031 05 dec b ROM1:5032 70 ld (hl),b ROM1:5033 E1 pop hl ROM1:5034 C9 ret
1:5047
ROM1:5047 E5 push hl ROM1:5048 3E 06 ld a,06 ROM1:504A DF rst 18 ROM1:504B 46 ld b,(hl) ROM1:504C 3E 07 ld a,07 ROM1:504E DF rst 18 ROM1:504F 78 ld a,b ROM1:5050 B7 or a ROM1:5051 28 08 jr z,505B ROM1:5053 3D dec a ROM1:5054 28 0A jr z,5060 ROM1:5056 3D dec a ROM1:5057 28 0D jr z,5066 ROM1:5059 18 10 jr 506B ROM1:505B 7E ld a,(hl) ROM1:505C 3D dec a ROM1:505D 77 ld (hl),a ROM1:505E 18 0F jr 506F ROM1:5060 23 inc hl ROM1:5061 7E ld a,(hl) ROM1:5062 3C inc a ROM1:5063 77 ld (hl),a ROM1:5064 18 09 jr 506F ROM1:5066 7E ld a,(hl) ROM1:5067 3C inc a ROM1:5068 77 ld (hl),a ROM1:5069 18 04 jr 506F ROM1:506B 23 inc hl ROM1:506C 7E ld a,(hl) ROM1:506D 3D dec a ROM1:506E 77 ld (hl),a ROM1:506F E1 pop hl ROM1:5070 C9 ret
Star Chips
Return number of Star Chips owned
ROM1:551C FA ED C2 ld a,(C2ED) ;a = star_chips ROM1:551F C9 ret
Add 1 Star Chip
ROM1:5520 FA ED C2 ld a,(C2ED) ROM1:5523 FE 63 cp a,63 ROM1:5525 D0 ret nc ;if (star_chips ≥ 99), exit ROM1:5526 3C inc a ;star_chips++ ROM1:5527 EA ED C2 ld (C2ED),a ;Store star_chips in wC2ED ROM1:552A C9 ret
Remove 1 Star Chip
ROM1:552B FA ED C2 ld a,(C2ED) ROM1:552E FE 02 cp a,02 ROM1:5530 D8 ret c ;if (star_chips < 2), exit ROM1:5531 3D dec a ;star_chips-- ROM1:5532 EA ED C2 ld (C2ED),a ;Store star_chips in wC2ED ROM1:5535 C9 ret
1:589C - Compare wC2B0 with wC2B1, adjusts flags in wC2B2
ROM1:589C FA B0 C2 ld a,(C2B0) ROM1:589F 47 ld b,a ROM1:58A0 FA B1 C2 ld a,(C2B1) ROM1:58A3 B8 cp b ROM1:58A4 28 0A jr z,58B0 ROM1:58A6 FA B2 C2 ld a,(C2B2) ROM1:58A9 F6 20 or a,20 ROM1:58AB EA B2 C2 ld (C2B2),a ;wC2B2 | 0x20 ROM1:58AE 18 08 jr 58B8 ROM1:58B0 FA B2 C2 ld a,(C2B2) ROM1:58B3 E6 DF and a,DF ROM1:58B5 EA B2 C2 ld (C2B2),a ;wC2B2 & 0xDF ROM1:58B8 78 ld a,b ROM1:58B9 EA B1 C2 ld (C2B1),a ;wC2B1 = wC2B0 ROM1:58BC CB 37 swap a ROM1:58BE E6 0F and a,0F ROM1:58C0 C9 ret
1:6E46
ROM1:6E46 FA FE C3 ld a,(C3FE) ROM1:6E49 47 ld b,a ROM1:6E4A E6 80 and a,80 ;a = wC3FE & 0x80 ROM1:6E4C C8 ret z ROM1:6E4D 78 ld a,b ROM1:6E4E E6 40 and a,40 ;a = wC3FE & 0x40 ROM1:6E50 C2 56 6E jp nz,6E56 ROM1:6E53 CD 6A 34 call 346A ROM1:6E56 C3 59 6E jp 6E59 ROM1:6E59 FA 13 C4 ld a,(C413) ;a = wC413 ROM1:6E5C FE FF cp a,FF ROM1:6E5E 28 05 jr z,6E65 ROM1:6E60 FE FE cp a,FE ROM1:6E62 C8 ret z ROM1:6E63 18 09 jr 6E6E ROM1:6E65 FA FE C3 ld a,(C3FE) ROM1:6E68 CB BF res 7,a ROM1:6E6A EA FE C3 ld (C3FE),a ;unset bit 7 on wC3FE ROM1:6E6D C9 ret
1:7A2A - Attempts to remove 1 Star Chip, then wC418++
ROM1:7A2A CD 2B 55 call 552B ;Remove 1 Star Chip ROM1:7A2D 38 03 jr c,7A32 ;if the Star Chip could not be removed, skip next instruction ROM1:7A2F C3 75 7F jp 7F75 ;wC418++, and exit ROM1:7A32 3E 04 ld a,04 ROM1:7A34 06 01 ld b,01 ROM1:7A36 CD 46 0A call 0A46 ROM1:7A39 D2 48 03 jp nc,0348 ROM1:7A3C FA 18 C4 ld a,(C418) ROM1:7A3F C6 05 add a,05 ROM1:7A41 EA 18 C4 ld (C418),a ;wC418 += 5 ROM1:7A44 C9 ret
1:7F75 - wC418++
ROM1:7F75 FA 18 C4 ld a,(C418) ROM1:7F78 3C inc a ROM1:7F79 EA 18 C4 ld (C418),a ROM1:7F7C C9 ret
Bank 3
Sound Test - load Sound Track
ROM3:5222 AF xor a ;soundtrack_id = 0 ROM3:5223 CD 77 3B call 3B77 ROM3:5226 CD BA 02 call 02BA ROM3:5229 F0 88 ld a,(ff00+88) ;a = soundtrack_id ROM3:522B CD 77 3B call 3B77 ROM3:522E C9 ret
Sound Test - load Sound Effect
ROM3:522F F0 89 ld a,(ff00+89) ;a = sound_effect_id ROM3:5231 CD 77 3B call 3B77 ROM3:5234 C9 ret
Bank 8
8:4E95
ROM8:4E95 CD F6 56 call 56F6 ;00s battle values in wC7E1-wC7F9 area ROM8:4E98 CD 65 56 call 5665 ;00s battle values in wC69A-wC6BE area ROM8:4E9B CD AF 62 call 62AF ROM8:4E9E FA A6 C7 ld a,(C7A6) ROM8:4EA1 CD 42 55 call 5542 ROM8:4EA4 CD 36 5A call 5A36 ROM8:4EA7 FA F9 C7 ld a,(C7F9) ROM8:4EAA EA FA C7 ld (C7FA),a ROM8:4EAD FA A5 C7 ld a,(C7A5) ROM8:4EB0 CB 87 res 0,a ROM8:4EB2 EA A5 C7 ld (C7A5),a ROM8:4EB5 FA 83 C7 ld a,(C783) ROM8:4EB8 3C inc a ROM8:4EB9 EA 83 C7 ld (C783),a ROM8:4EBC AF xor a ROM8:4EBD EA 84 C7 ld (C784),a ROM8:4EC0 18 00 jr 4EC2 ROM8:4EC2 C9 ret
00s battle values in wC69A-wC6BE area
0x21665- Initializes battle values, including the probability to hit.
ROM8:5665 F5 push af ROM8:5666 C5 push bc ROM8:5667 E5 push hl ROM8:5668 21 9A C6 ld hl,C69A ROM8:566B AF xor a ROM8:566C 06 24 ld b,24 ROM8:566E 22 ldi (hl),a ROM8:566F 05 dec b ROM8:5670 20 FC jr nz,566E ROM8:5672 E1 pop hl ROM8:5673 C1 pop bc ROM8:5674 F1 pop af ROM8:5675 C9 ret
00s battle values in wC7E1-wC7F9 area
ROM8:56F6 F5 push af ROM8:56F7 C5 push bc ROM8:56F8 E5 push hl ROM8:56F9 21 E1 C7 ld hl,C7E1 ROM8:56FC AF xor a ROM8:56FD 06 18 ld b,18 ROM8:56FF 22 ldi (hl),a ROM8:5700 05 dec b ROM8:5701 20 FC jr nz,56FF ;loop 24 times ROM8:5703 E1 pop hl ROM8:5704 C1 pop bc ROM8:5705 F1 pop af ROM8:5706 C9 ret
8:62AF - call 8:6339, set wC732 to 0
ROM8:62AF F5 push af ROM8:62B0 C5 push bc ROM8:62B1 D5 push de ROM8:62B2 E5 push hl ROM8:62B3 CD 39 63 call 6339 ROM8:62B6 AF xor a ROM8:62B7 EA 32 C7 ld (C732),a ROM8:62BA E1 pop hl ROM8:62BB D1 pop de ROM8:62BC C1 pop bc ROM8:62BD F1 pop af ROM8:62BE C9 ret
8:6339
ROM8:6339 06 1B ld b,1B ROM8:633B FA 33 C7 ld a,(C733) ROM8:633E FE 02 cp a,02 ROM8:6340 20 02 jr nz,6344 ROM8:6342 06 24 ld b,24 ROM8:6344 FA 34 C7 ld a,(C734) ROM8:6347 26 C0 ld h,C0 ROM8:6349 6F ld l,a ROM8:634A AF xor a ROM8:634B 22 ldi (hl),a ROM8:634C 23 inc hl ROM8:634D 23 inc hl ROM8:634E 23 inc hl ROM8:634F 05 dec b ROM8:6350 20 F9 jr nz,634B ROM8:6352 C9 ret
Bank 18
Title screen
Checks button pressed
RO18:4AF5 5F ld e,a RO18:4AF6 71 ld (hl),c RO18:4AF7 1A ld a,(de) RO18:4AF8 7F ld a,a RO18:4AF9 72 ld (hl),d RO18:4AFA EA 49 1A ld (1A49),a RO18:4AFD 21 84 03 ld hl,0384 RO18:4B00 CD 1D 46 call 461D RO18:4B03 21 09 4B ld hl,4B09 RO18:4B06 CD DD 45 call 45DD RO18:4B09 F0 AA ld a,(ff00+AA) RO18:4B0B E6 90 and a,90 RO18:4B0D 20 0A jr nz,4B19 ;if(button == A || button == Start), jump to 18:4B19 RO18:4B0F CD 26 46 call 4626 RO18:4B12 C0 ret nz RO18:4B13 3E 01 ld a,01 RO18:4B15 EA 01 C2 ld (C201),a RO18:4B18 C9 ret
Button A or Start pressed
RO18:4B19 3E DC ld a,DC RO18:4B1B CD 77 3B call 3B77 RO18:4B1E AF xor a RO18:4B1F CD 67 4B call 4B67 RO18:4B22 21 05 00 ld hl,0005 RO18:4B25 CD 22 47 call 4722 RO18:4B28 3E 01 ld a,01 RO18:4B2A CD 67 4B call 4B67 RO18:4B2D 21 05 00 ld hl,0005 RO18:4B30 CD 22 47 call 4722 RO18:4B33 06 08 ld b,08 RO18:4B35 21 C8 49 ld hl,49C8 RO18:4B38 CD D0 15 call 15D0 RO18:4B3B 3E 00 ld a,00 RO18:4B3D E0 9C ld (ff00+9C),a RO18:4B3F 21 04 00 ld hl,0004 RO18:4B42 CD 22 47 call 4722 RO18:4B45 AF xor a RO18:4B46 CD 67 4B call 4B67 RO18:4B49 21 01 00 ld hl,0001 RO18:4B4C CD 22 47 call 4722 RO18:4B4F 06 08 ld b,08 RO18:4B51 21 FA 4A ld hl,4AFA RO18:4B54 CD D0 15 call 15D0 RO18:4B57 3E E4 ld a,E4 RO18:4B59 E0 9C ld (ff00+9C),a RO18:4B5B 21 39 00 ld hl,0039 RO18:4B5E CD 22 47 call 4722 RO18:4B61 3E 04 ld a,04 RO18:4B63 EA 01 C2 ld (C201),a RO18:4B66 C9 ret
| Collapse Internal Data for Yu-Gi-Oh! Monster Capsule GB
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