diff options
Diffstat (limited to 'home/bankswitch2.asm')
| -rw-r--r-- | home/bankswitch2.asm | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/home/bankswitch2.asm b/home/bankswitch2.asm new file mode 100644 index 00000000..cc7169cd --- /dev/null +++ b/home/bankswitch2.asm @@ -0,0 +1,39 @@ +BankswitchCommon:: + ldh [hLoadedROMBank], a + ld [MBC1RomBank], a + ret + +Bankswitch:: +; self-contained bankswitch, use this when not in the home bank +; switches to the bank in b + ldh a, [hLoadedROMBank] + push af + ld a, b + ldh [hLoadedROMBank], a + ld [MBC1RomBank], a + call JumpToAddress + pop bc + ld a, b + ldh [hLoadedROMBank], a + ld [MBC1RomBank], a + ret +JumpToAddress:: + jp hl + +SwitchSRAMBankAndLatchClockData:: + push af + ld a, $1 + ld [MBC1SRamBankingMode], a + ld a, SRAM_ENABLE + ld [MBC1SRamEnable], a + pop af + ld [MBC1SRamBank], a + ret + +PrepareRTCDataAndDisableSRAM:: + push af + ld a, $0 + ld [MBC1SRamBankingMode], a + ld [MBC1SRamEnable], a + pop af + ret |