7cc5f802f9
Add flag if compass HUD count has been displayed in SRAM Move low hearts fix from tables.asm to bugfixes.asm Rearrange dungeon stats in SRAM to match door rando ROM
82 lines
2.2 KiB
NASM
82 lines
2.2 KiB
NASM
;--------------------------------------------------------------------------------
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; Init_Primary
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;--------------------------------------------------------------------------------
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; This can be as inefficient as we want. Interrupts are off when this gets
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; called and it only gets called once ever during RESET.
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;--------------------------------------------------------------------------------
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Init_Primary:
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LDA #$00
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LDX #$00 ; initalize our ram
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-
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STA $7EC025, X
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STA $7F5000, X
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INX
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CPX #$10 : !BLT -
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LDX #$10 ; initalize more ram
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-
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STA $7F5000, X
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INX
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CPX #$FF : !BLT -
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LDX #$00
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-
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LDA RomNameSRAM, X : CMP $00FFC0, X : BNE .clear
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INX
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CPX #$15 : !BLT -
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BRA .done
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.clear
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REP #$30 ; set 16-bit accumulator & index registers
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LDA.w #$0000
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-
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STA $700000, X
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INX
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CPX #$2000 : !BLT -
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SEP #$30 ; set 8-bit accumulator & index registers
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LDX #$00
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-
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LDA $00FFC0, X : STA RomNameSRAM, X
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INX
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CPX #$15 : !BLT -
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LDX #$00
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-
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LDA RomVersion, X : STA RomVersionSRAM, X
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INX
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CPX #$04 : !BLT -
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.done
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REP #$20
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LDA.l OneMindTimer : STA.l !ONEMIND_TIMER
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SEP #$20
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LDA.b #$01 : STA $420D ; enable fastrom access on upper banks
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STA.l !ONEMIND_ID
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LDA.b #$10 : STA $BC ; set default player sprite bank
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LDA.b #$81 : STA $4200 ; thing we wrote over, turn on NMI & gamepad
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RTL
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;--------------------------------------------------------------------------------
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; Init_PostRAMClear
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;--------------------------------------------------------------------------------
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; This gets called after banks $7E and $7F get cleared, so if we need to
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; initialize RAM in those banks, do it here
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;--------------------------------------------------------------------------------
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Init_PostRAMClear:
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JSL MSUInit
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JSL InitRNGPointerTable
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JSR InitCompassTotalsRAM
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JML $00D463 ; The original target of the jump table that we hijacked
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;--------------------------------------------------------------------------------
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InitCompassTotalsRAM:
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LDX #$00
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-
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LDA CompassTotalsROM, X : STA CompassTotalsWRAM, X
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INX
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CPX #$0F : !BLT -
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RTS
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