Update notes
This commit is contained in:
jeffman
parent
37cac6396f
commit
a2d7dcfbfa
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@ -27,6 +27,17 @@
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// 2 = HALKEN
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// 3 = Title screen (full)
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// 5 = Title screen (quick)
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// 0x18 byte struct: ($2028008)
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// Offset Length Description
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// ------------------------------------
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// 0 4 Animation number
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// 4 4 Current frame
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// 8 4 ?
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// C 4 ?
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// 10 4 ?
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// 14 4 Pointer to giant 0x2E0 byte struct used in $80113F5
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080111D0 (T) push r4-r7,r14
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080111D2 (T) mov r7,r9
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080111D4 (T) mov r6,r8
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@ -82,12 +82,14 @@
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//=============================================================================
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// $80115A9:
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// Load a bunch of constants to the stack
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080115A8 (T) push r4-r7,r14
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080115AA (T) mov r7,r10
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080115AC (T) mov r6,r9
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080115AE (T) mov r5,r8
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080115B0 (T) push r5-r7
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080115B2 (T) add sp,-94h
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080115B2 (T) add sp,-94h // damn...
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080115B4 (T) mov r1,r13
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080115B6 (T) ldr r0,=80FCB74h
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080115B8 (T) ldmia [r0]!,r2-r4
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@ -129,6 +131,7 @@
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08011600 (T) stmia [r1]!,r2,r3,r7
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08011602 (T) ldmia [r0]!,r2,r3
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08011604 (T) stmia [r1]!,r2,r3
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08011606 (T) ldr r3,=3000370h
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08011608 (T) ldr r7,[r3]
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0801160A (T) mov r12,r7
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@ -145,10 +148,12 @@
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08011620 (T) add r0,r0,r1
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08011622 (T) lsl r0,r0,4h
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08011624 (T) add r0,r0,r2
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08011626 (T) ldrb r1,[r0,8h]
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08011626 (T) ldrb r1,[r0,8h] // appears to be a has-this-been-run-yet flag
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08011628 (T) cmp r1,0h
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0801162A (T) beq 801162Eh
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0801162C (T) b 8011730h
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// If this is the first run:
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0801162E (T) mov r0,r9
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08011630 (T) add r0,84h
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08011632 (T) str r1,[r0]
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@ -274,11 +279,15 @@
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0801172A (T) lsl r0,r0,0Ch
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0801172C (T) cmp r7,0B0h
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0801172E (T) lsr r1,r6,1h
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08011730 (T) ldrb r0,[r0,0Bh]
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08011730 (T) ldrb r0,[r0,0Bh] // appears to be an are-we-on-the-last-run flag
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08011732 (T) cmp r0,1h
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08011734 (T) bne 801173Ch
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// If this is the last run:
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08011736 (T) bl 8000C28h
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0801173A (T) b 8011BE4h
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// Else:
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0801173C (T) ldr r0,=3002500h
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0801173E (T) ldrh r1,[r0]
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08011740 (T) mov r0,9h
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@ -889,11 +898,13 @@
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080114AC (T) add r0,r0,r1
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080114AE (T) lsl r0,r0,4h
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080114B0 (T) add r1,r0,r2
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080114B2 (T) ldrb r0,[r1,8h]
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080114B2 (T) ldrb r0,[r1,8h] // already-executed flag
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080114B4 (T) cmp r0,0h
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080114B6 (T) bne 80114D0h
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080114B8 (T) bl 8000454h
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080114BC (T) bl 8005D50h
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// If first run:
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080114B8 (T) bl 8000454h // check pad input
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080114BC (T) bl 8005D50h // clears some flag
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080114C0 (T) b 801156Eh
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080114C2 (T) lsl r0,r0,0h
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080114C4 (T) lsl r0,r6,0Dh
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@ -902,31 +913,40 @@
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080114CA (T) lsl r0,r0,0Ch
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080114CC (T) cmp r2,30h
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080114CE (T) lsl r0,r0,0Ch
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// If not the first run:
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080114D0 (T) ldrb r0,[r1,0Bh]
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080114D2 (T) cmp r0,1h
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080114D4 (T) bne 80114DCh
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// If last run:
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080114D6 (T) bl 8000C28h
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080114DA (T) b 801156Eh
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080114DC (T) bl 80F47E4h
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// If not last run:
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080114DC (T) bl 80F47E4h // wait for vblank
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// Set BG0 and BG1 scrolling offsets
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080114E0 (T) ldr r1,=4000010h
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080114E2 (T) ldr r0,=3001B20h
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080114E4 (T) ldrh r0,[r0]
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080114E6 (T) strh r0,[r1]
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080114E6 (T) strh r0,[r1] // BG0OFSa
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080114E8 (T) add r1,2h
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080114EA (T) ldr r0,=30012DCh
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080114EC (T) ldrh r0,[r0]
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080114EE (T) strh r0,[r1]
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080114EE (T) strh r0,[r1] // BG0OFSb
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080114F0 (T) add r1,2h
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080114F2 (T) ldr r0,=3001D30h
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080114F4 (T) ldrh r0,[r0]
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080114F6 (T) strh r0,[r1]
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080114F6 (T) strh r0,[r1] // BG1OFSa
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080114F8 (T) add r1,2h
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080114FA (T) ldr r0,=30012E8h
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080114FC (T) ldrh r0,[r0]
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080114FE (T) strh r0,[r1]
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080114FE (T) strh r0,[r1] // BG1OFSb
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08011500 (T) mov r0,r4
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08011502 (T) add r0,84h
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08011504 (T) ldr r0,[r0]
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08011504 (T) ldr r0,[r0] // frame number
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08011506 (T) cmp r0,1h
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08011508 (T) blt 8011536h
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0801150A (T) cmp r0,2h
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@ -935,22 +955,28 @@
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08011510 (T) bgt 8011536h
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08011512 (T) cmp r0,9h
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08011514 (T) blt 8011536h
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// If on frames 9-A:
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08011516 (T) mov r1,80h
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08011518 (T) lsl r1,r1,13h
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0801151A (T) mov r0,r4
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0801151C (T) add r0,78h
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0801151E (T) ldrh r0,[r0]
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08011520 (T) strh r0,[r1]
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08011522 (T) ldr r1,=4000050h
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// If on frames 1-2:
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08011522 (T) ldr r1,=4000050h // BLDCNT (special effects)
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08011524 (T) mov r0,r4
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08011526 (T) add r0,7Ah
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08011528 (T) ldrh r0,[r0]
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0801152A (T) strh r0,[r1]
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0801152C (T) add r1,4h
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0801152C (T) add r1,4h // BLDY (brightness amount)
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0801152E (T) mov r0,r4
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08011530 (T) add r0,7Ch
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08011532 (T) ldrh r0,[r0]
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08011534 (T) strh r0,[r1]
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// If on frame 0, 3-8, or >A:
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08011536 (T) ldr r1,=40000D4h
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08011538 (T) ldr r2,=30033A0h
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0801153A (T) str r2,[r1]
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