ref: 993eecdc4a931dde7c5c487fba5d79f548866030
parent: 6386d76cbdcc308924a09b6c3588c256cea1868c
author: yenatch <[email protected]>
date: Thu May 2 18:38:12 EDT 2013
MBC constants in the wild
--- a/main.asm
+++ b/main.asm
@@ -8,7 +8,7 @@
SECTION "rst10",HOME[$10] ; Bankswitch
ld [hROMBank], a
- ld [$2000], a
+ ld [MBC3RomBank], a
ret
SECTION "rst18",HOME[$18] ; Unused
@@ -207,10 +207,10 @@
LatchClock: ; 59c
; latch clock counter data
- ld a, $0
- ld [$6000], a
- ld a, $1
- ld [$6000], a
+ ld a, 0
+ ld [MBC3LatchClock], a
+ ld a, 1
+ ld [MBC3LatchClock], a
ret
; 5a7
@@ -232,37 +232,37 @@
; store clock data in hRTCDayHi-hRTCSeconds
; enable clock r/w
- ld a, $a
- ld [$0000], a
+ ld a, SRAM_ENABLE
+ ld [MBC3SRamEnable], a
; get clock data
; stored 'backwards' in hram
call LatchClock
- ld hl, $4000
- ld de, $a000
+ ld hl, MBC3SRamBank
+ ld de, MBC3RTC
; seconds
- ld [hl], $8 ; S
+ ld [hl], RTC_S
ld a, [de]
and $3f
ld [hRTCSeconds], a
; minutes
- ld [hl], $9 ; M
+ ld [hl], RTC_M
ld a, [de]
and $3f
ld [hRTCMinutes], a
; hours
- ld [hl], $a ; H
+ ld [hl], RTC_H
ld a, [de]
and $1f
ld [hRTCHours], a
; day lo
- ld [hl], $b ; DL
+ ld [hl], RTC_DL
ld a, [de]
ld [hRTCDayLo], a
; day hi
- ld [hl], $c ; DH
+ ld [hl], RTC_DH
ld a, [de]
ld [hRTCDayHi], a
@@ -390,41 +390,41 @@
; set clock data from hram
; enable clock r/w
- ld a, $a
- ld [$0000], a
+ ld a, SRAM_ENABLE
+ ld [MBC3SRamEnable], a
; set clock data
; stored 'backwards' in hram
call LatchClock
- ld hl, $4000
- ld de, $a000
+ ld hl, MBC3SRamBank
+ ld de, MBC3RTC
; seems to be a halt check that got partially commented out
; this block is totally pointless
- ld [hl], $c
+ ld [hl], RTC_DH
ld a, [de]
bit 6, a ; halt
ld [de], a
; seconds
- ld [hl], $8 ; S
+ ld [hl], RTC_S
ld a, [hRTCSeconds]
ld [de], a
; minutes
- ld [hl], $9 ; M
+ ld [hl], RTC_M
ld a, [hRTCMinutes]
ld [de], a
; hours
- ld [hl], $a ; H
+ ld [hl], RTC_H
ld a, [hRTCHours]
ld [de], a
; day lo
- ld [hl], $b ; DL
+ ld [hl], RTC_DL
ld a, [hRTCDayLo]
ld [de], a
; day hi
- ld [hl], $c ; DH
+ ld [hl], RTC_DH
ld a, [hRTCDayHi]
res 6, a ; make sure timer is active
ld [de], a
@@ -2723,14 +2723,14 @@
; switch to sram bank a
push af
; latch clock data
- ld a, $1
- ld [$6000], a
+ ld a, 1
+ ld [MBC3LatchClock], a
; enable sram/clock write
- ld a, $a
- ld [$0000], a
+ ld a, SRAM_ENABLE
+ ld [MBC3SRamEnable], a
; select sram bank
pop af
- ld [$4000], a
+ ld [MBC3SRamBank], a
ret
; 2fe1
@@ -2737,11 +2737,11 @@
CloseSRAM: ; 2fe1
; preserve a
push af
- ld a, $0
+ ld a, SRAM_DISABLE
; reset clock latch for next time
- ld [$6000], a
+ ld [MBC3LatchClock], a
; disable sram/clock write
- ld [$0000], a
+ ld [MBC3SRamEnable], a
pop af
ret
; 2fec
@@ -3950,13 +3950,13 @@
push af
ld a, BANK(SoundRestart)
ld [hROMBank], a
- ld [$2000], a
+ ld [MBC3RomBank], a
call SoundRestart
pop af
ld [hROMBank], a
- ld [$2000], a
+ ld [MBC3RomBank], a
pop af
pop bc
@@ -3977,13 +3977,13 @@
push af
ld a, BANK(UpdateSound)
ld [hROMBank], a
- ld [$2000], a
+ ld [MBC3RomBank], a
call UpdateSound
pop af
ld [hROMBank], a
- ld [$2000], a
+ ld [MBC3RomBank], a
pop af
pop bc
@@ -3997,7 +3997,7 @@
; CurMusicByte = [a:de]
ld [hROMBank], a
- ld [$2000], a
+ ld [MBC3RomBank], a
ld a, [de]
ld [CurMusicByte], a
@@ -4004,7 +4004,7 @@
ld a, $3a ; manual bank restore
ld [hROMBank], a
- ld [$2000], a
+ ld [MBC3RomBank], a
ret
; 3b97
@@ -4021,7 +4021,7 @@
push af
ld a, BANK(LoadMusic) ; and BANK(SoundRestart)
ld [hROMBank], a
- ld [$2000], a
+ ld [MBC3RomBank], a
ld a, e
and a
@@ -4036,7 +4036,7 @@
.end
pop af
ld [hROMBank], a
- ld [$2000], a
+ ld [MBC3RomBank], a
pop af
pop bc
pop de
@@ -4057,7 +4057,7 @@
push af
ld a, BANK(LoadMusic)
ld [hROMBank], a
- ld [$2000], a
+ ld [MBC3RomBank], a
push de
ld de, MUSIC_NONE
@@ -4068,7 +4068,7 @@
pop af
ld [hROMBank], a
- ld [$2000], a
+ ld [MBC3RomBank], a
pop af
pop bc
@@ -4094,7 +4094,7 @@
; Cry headers are stuck in one bank.
ld a, BANK(CryHeaders)
ld [hROMBank], a
- ld [$2000], a
+ ld [MBC3RomBank], a
; Each header is 6 bytes long:
ld hl, CryHeaders
@@ -4121,13 +4121,13 @@
ld a, BANK(PlayCry)
ld [hROMBank], a
- ld [$2000], a
+ ld [MBC3RomBank], a
call PlayCry
pop af
ld [hROMBank], a
- ld [$2000], a
+ ld [MBC3RomBank], a
pop af
pop bc
@@ -4159,7 +4159,7 @@
push af
ld a, BANK(LoadSFX)
ld [hROMBank], a
- ld [$2000], a ; bankswitch
+ ld [MBC3RomBank], a ; bankswitch
ld a, e
ld [CurSFX], a
@@ -4167,7 +4167,7 @@
pop af
ld [hROMBank], a
- ld [$2000], a ; bankswitch
+ ld [MBC3RomBank], a ; bankswitch
.quit
pop af
pop bc