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MBC3 constants

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yenatch 2013-05-02 22:13:30 -04:00
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gbhw.asm
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; Graciously aped from http://nocash.emubase.de/pandocs.htm . ; Graciously aped from http://nocash.emubase.de/pandocs.htm .
; MBC3
MBC3SRamEnable EQU $0000
MBC3RomBank EQU $2000
MBC3SRamBank EQU $4000
MBC3LatchClock EQU $6000
MBC3RTC EQU $a000
SRAM_DISABLE EQU $00
SRAM_ENABLE EQU $0a
RTC_S EQU $08 ; Seconds 0-59 (0-3Bh)
RTC_M EQU $09 ; Minutes 0-59 (0-3Bh)
RTC_H EQU $0a ; Hours 0-23 (0-17h)
RTC_DL EQU $0b ; Lower 8 bits of Day Counter (0-FFh)
RTC_DH EQU $0c ; Upper 1 bit of Day Counter, Carry Bit, Halt Flag
; Bit 0 Most significant bit of Day Counter (Bit 8)
; Bit 6 Halt (0=Active, 1=Stop Timer)
; Bit 7 Day Counter Carry Bit (1=Counter Overflow)
; Hardware registers
rJOYP EQU $ff00 ; Joypad (R/W) rJOYP EQU $ff00 ; Joypad (R/W)
rSB EQU $ff01 ; Serial transfer data (R/W) rSB EQU $ff01 ; Serial transfer data (R/W)
rSC EQU $ff02 ; Serial Transfer Control (R/W) rSC EQU $ff02 ; Serial Transfer Control (R/W)