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; switch SRAM bank to a
BankswitchSRAM:
push af
ldh [hBankSRAM], a
ld [MBC3SRamBank], a
ld a, SRAM_ENABLE
ld [MBC3SRamEnable], a
pop af
ret
; enable external RAM (SRAM)
EnableSRAM:
push af
ld a, SRAM_ENABLE
ld [MBC3SRamEnable], a
pop af
ret
; disable external RAM (SRAM)
DisableSRAM:
push af
xor a ; SRAM_DISABLE
ld [MBC3SRamEnable], a
pop af
ret
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