387 lines
9.0 KiB
Python
387 lines
9.0 KiB
Python
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from ..assembler import ASM
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from .. import utils
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def addBank3F(rom):
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# Bank3F is used to initialize the tile data in VRAM:1 at the start of the rom.
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# The normal rom does not use this tile data to maintain GB compatibility.
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rom.patch(0, 0x0150, ASM("""
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cp $11 ; is running on Game Boy Color?
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jr nz, notGBC
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ldh a, [$4d]
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and $80 ; do we need to switch the CPU speed?
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jr nz, speedSwitchDone
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; switch to GBC speed
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ld a, $30
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ldh [$00], a
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ld a, $01
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ldh [$4d], a
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xor a
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ldh [$ff], a
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stop
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db $00
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speedSwitchDone:
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xor a
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ldh [$70], a
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ld a, $01 ; isGBC = true
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jr Init
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notGBC:
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xor a ; isGBC = false
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Init:
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"""), ASM("""
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; Check if we are a color gameboy, we require a color version now.
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cp $11
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jr nz, notGBC
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; Switch to bank $3F to run our custom initializer
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ld a, $3F
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ld [$2100], a
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call $4000
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; Switch back to bank 0 after loading our own initializer
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ld a, $01
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ld [$2100], a
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; set a to 1 to indicate GBC
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ld a, $01
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jr Init
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notGBC:
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xor a
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Init:
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"""), fill_nop=True)
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rom.patch(0x3F, 0x0000, None, ASM("""
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; switch speed
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ld a, $30
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ldh [$00], a
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ld a, $01
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ldh [$4d], a
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xor a
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ldh [$ff], a
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stop
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db $00
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; Switch VRAM bank
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ld a, $01
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ldh [$4F], a
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call $28CF ; display off
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; Use the GBC DMA to transfer our tile data
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ld a, $68
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ldh [$51], a
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ld a, $00
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ldh [$52], a
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ld a, $80
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ldh [$53], a
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ld a, $00
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ldh [$54], a
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ld a, $7F
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ldh [$55], a
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waitTillTransferDone:
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ldh a, [$55]
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and $80
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jr z, waitTillTransferDone
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ld a, $70
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ldh [$51], a
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ld a, $00
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ldh [$52], a
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ld a, $88
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ldh [$53], a
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ld a, $00
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ldh [$54], a
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ld a, $7F
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ldh [$55], a
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waitTillTransferDone2:
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ldh a, [$55]
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and $80
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jr z, waitTillTransferDone2
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ld a, $68
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ldh [$51], a
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ld a, $00
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ldh [$52], a
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ld a, $90
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ldh [$53], a
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ld a, $00
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ldh [$54], a
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ld a, $7F
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ldh [$55], a
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waitTillTransferDone3:
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ldh a, [$55]
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and $80
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jr z, waitTillTransferDone3
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; Switch VRAM bank back
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ld a, $00
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ldh [$4F], a
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; Switch the display back on, else the later code hangs
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ld a, $80
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ldh [$40], a
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speedSwitchDone:
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xor a
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ldh [$70], a
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; Check if we are running on a bad emulator
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ldh [$02], a
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ldh a, [$02]
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and $7c
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cp $7c
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jr nz, badEmu
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; Enable the timer to run 32 times per second
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xor a
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ldh [$06], a
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ld a, $04
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ldh [$07], a
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; Set SB to $FF to indicate we have no data from hardware
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ld a, $FF
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ldh [$01], a
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ret
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badEmu:
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xor a
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ldh [$40], a ; switch display off
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; Load some palette
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ld a, $80
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ldh [$68], a
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xor a
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ldh [$69], a
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ldh [$69], a
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ldh [$69], a
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ldh [$69], a
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; Load a different gfx tile for the first gfx
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cpl
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ld hl, $8000
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ld c, $10
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.loop:
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ldi [hl], a
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dec c
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jr nz, .loop
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ld a, $01
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ld [$9800], a
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ld [$9820], a
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ld [$9840], a
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ld [$9860], a
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ld [$9880], a
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ld [$9801], a
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ld [$9841], a
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ld [$9881], a
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ld [$9822], a
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ld [$9862], a
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ld [$9824], a
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ld [$9844], a
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ld [$9864], a
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ld [$9884], a
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ld [$9805], a
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ld [$9845], a
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ld [$9826], a
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ld [$9846], a
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ld [$9866], a
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ld [$9886], a
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ld [$9808], a
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ld [$9828], a
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ld [$9848], a
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ld [$9868], a
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ld [$9888], a
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ld [$9809], a
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ld [$9889], a
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ld [$982A], a
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ld [$984A], a
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ld [$986A], a
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ld [$9900], a
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ld [$9920], a
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ld [$9940], a
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ld [$9960], a
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ld [$9980], a
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ld [$9901], a
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ld [$9941], a
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ld [$9981], a
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ld [$9903], a
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ld [$9923], a
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ld [$9943], a
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ld [$9963], a
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ld [$9983], a
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ld [$9904], a
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ld [$9925], a
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ld [$9906], a
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ld [$9907], a
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ld [$9927], a
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ld [$9947], a
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ld [$9967], a
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ld [$9987], a
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ld [$9909], a
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ld [$9929], a
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ld [$9949], a
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ld [$9969], a
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ld [$9989], a
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ld [$998A], a
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ld [$990B], a
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ld [$992B], a
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ld [$994B], a
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ld [$996B], a
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ld [$998B], a
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; lcd on
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ld a, $91
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ldh [$40], a
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blockBadEmu:
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di
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jr blockBadEmu
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"""))
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# Copy all normal item graphics
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rom.banks[0x3F][0x2800:0x2B00] = rom.banks[0x2C][0x0800:0x0B00] # main items
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rom.banks[0x3F][0x2B00:0x2C00] = rom.banks[0x2C][0x0C00:0x0D00] # overworld key items
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rom.banks[0x3F][0x2C00:0x2D00] = rom.banks[0x32][0x3D00:0x3E00] # dungeon key items
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# Create ruppee for palettes 0-3
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rom.banks[0x3F][0x2B80:0x2BA0] = rom.banks[0x3F][0x2A60:0x2A80]
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for n in range(0x2B80, 0x2BA0, 2):
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rom.banks[0x3F][n+1] ^= rom.banks[0x3F][n]
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# Create capacity upgrade arrows
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rom.banks[0x3F][0x2A30:0x2A40] = utils.createTileData("""
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33
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3113
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311113
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33311333
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3113
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3333
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""")
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rom.banks[0x3F][0x2A20:0x2A30] = rom.banks[0x3F][0x2A30:0x2A40]
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for n in range(0x2A20, 0x2A40, 2):
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rom.banks[0x3F][n] |= rom.banks[0x3F][n + 1]
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# Add the slime key and mushroom which are not in the above sets
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rom.banks[0x3F][0x2CC0:0x2D00] = rom.banks[0x2C][0x28C0:0x2900]
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# Add tunic sprites as well.
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rom.banks[0x3F][0x2C80:0x2CA0] = rom.banks[0x35][0x0F00:0x0F20]
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# Add the bowwow sprites
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rom.banks[0x3F][0x2D00:0x2E00] = rom.banks[0x2E][0x2400:0x2500]
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# Zol sprites, so we can have zol anywhere from a chest
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rom.banks[0x3F][0x2E00:0x2E60] = rom.banks[0x2E][0x1120:0x1180]
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# Patch gel(zol) entity to load sprites from the 2nd bank
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rom.patch(0x06, 0x3C09, "5202522254025422" "5200522054005420", "600A602A620A622A" "6008602862086228")
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rom.patch(0x07, 0x329B, "FFFFFFFF" "FFFFFFFF" "54005420" "52005220" "56005600",
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"FFFFFFFF" "FFFFFFFF" "62086228" "60086028" "64086408")
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rom.patch(0x06, 0x3BFA, "56025622", "640A642A");
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# Cucco
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rom.banks[0x3F][0x2E80:0x2F00] = rom.banks[0x32][0x2500:0x2580]
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# Patch the cucco graphics to load from 2nd vram bank
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rom.patch(0x05, 0x0514,
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"5001" "5201" "5401" "5601" "5221" "5021" "5621" "5421",
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"6809" "6A09" "6C09" "6E09" "6A29" "6829" "6E29" "6C29")
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# Song symbols
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rom.banks[0x3F][0x2F00:0x2F60] = utils.createTileData("""
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...
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. .222
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.2.2222
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.22.222.
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.22222.3
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.2..22.3
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.33...3
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.33.3.3
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..233.3
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.22.2333
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.222.233
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.222...
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...
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""" + """
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..
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.22
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.223
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..222
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.33.22
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.3..22
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.33.33
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..23.
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..233.
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.22.333
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.22..233
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.. .23
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..
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""" + """
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...
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.222.
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.2.332
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.23.32
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.233.2
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.222222
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.2222222
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.2..22.2
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.2.3.222
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.22...22
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.2333..
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.23333
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.....""", " .23")
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# Ghost
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rom.banks[0x3F][0x2F60:0x2FE0] = rom.banks[0x32][0x1800:0x1880]
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# Instruments
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rom.banks[0x3F][0x3000:0x3200] = rom.banks[0x31][0x1000:0x1200]
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# Patch the egg song event to use the 2nd vram sprites
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rom.patch(0x19, 0x0BAC,
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"5006520654065606"
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"58065A065C065E06"
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"6006620664066606"
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"68066A066C066E06",
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"800E820E840E860E"
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"880E8A0E8C0E8E0E"
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"900E920E940E960E"
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"980E9A0E9C0E9E0E"
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)
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# Rooster
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rom.banks[0x3F][0x3200:0x3300] = rom.banks[0x32][0x1D00:0x1E00]
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rom.patch(0x19, 0x19BC,
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"42234023" "46234423" "40034203" "44034603" "4C034C23" "4E034E23" "48034823" "4A034A23",
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"A22BA02B" "A62BA42B" "A00BA20B" "A40BA60B" "AC0BAC2B" "AE0BAE2B" "A80BA82B" "AA0BAA2B")
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# Replace some main item graphics with the rooster
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rom.banks[0x2C][0x0900:0x0940] = utils.createTileData(utils.tileDataToString(rom.banks[0x32][0x1D00:0x1D40]), " 321")
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# Trade sequence items
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rom.banks[0x3F][0x3300:0x3640] = rom.banks[0x2C][0x0400:0x0740]
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