2023-10-25 05:21:48 +00:00
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; DMGTRIS
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; Copyright (C) 2023 - Randy Thiemann <randy.thiemann@gmail.com>
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; This program is free software: you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation, either version 3 of the License, or
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; (at your option) any later version.
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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; You should have received a copy of the GNU General Public License
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; along with this program. If not, see <https://www.gnu.org/licenses/>.
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IF !DEF(BANKING_ASM)
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DEF BANKING_ASM EQU 1
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INCLUDE "globals.asm"
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SECTION "High Banking Variables", HRAM
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hBankBackup: ds 1
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2023-10-27 19:37:32 +00:00
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2023-10-25 05:21:48 +00:00
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SECTION "Switch Bank", ROM0[$08]
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; Saves the current bank and switches to the bank in b.
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RSTSwitchBank::
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ld a, [rBANKID]
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ldh [hBankBackup], a
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ld a, b
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ld [rROMB0], a
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ret
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SECTION "Restore Bank", ROM0[$18]
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; Restore the bank previously saved. The current one is not saved.
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RSTRestoreBank::
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ld a, [hBankBackup]
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ld [rROMB0], a
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ret
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ENDC
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