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temporarily patch rcnt to return 0x8000 so that sonic advance boots

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This commit is contained in:
Matthew Berry 2022-06-24 23:06:25 -07:00
parent ed1a8214c6
commit 61b21b4233
1 changed files with 5 additions and 1 deletions
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6
src/crab/gba/mmio.cr
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@ -33,7 +33,11 @@ module GBA
@gba.keypad.read_io io_addr
elsif 0x120 <= io_addr <= 0x12F || 0x134 <= io_addr <= 0x1FF
# todo: serial
0_u8
if io_addr == 0x135
0x80_u8
else
0_u8
end
elsif 0x200 <= io_addr <= 0x203 || 0x208 <= io_addr <= 0x209
@gba.interrupts.read_io io_addr
elsif 0x204 <= io_addr <= 0x205