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Refinements to DMG STAT write interrupt bug. Fixes stat_irq_blocking on DMG.

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This commit is contained in:
Lior Halphon 2017-02-25 21:56:46 +02:00
parent 2c1d2571d3
commit 55e54d9499
1 changed files with 2 additions and 1 deletions
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3
Core/memory.c
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@ -452,7 +452,8 @@ static void write_high_memory(GB_gameboy_t *gb, uint16_t addr, uint8_t value)
case GB_IO_STAT:
/* A DMG bug: http://www.devrs.com/gb/files/faqs.html#GBBugs */
if (!gb->is_cgb && (gb->io_registers[GB_IO_STAT] & 0x3) < 2 && (gb->io_registers[GB_IO_LCDC] & 0x80)) {
if (!gb->is_cgb && !gb->stat_interrupt_line &&
(gb->io_registers[GB_IO_STAT] & 0x3) < 2 && (gb->io_registers[GB_IO_LCDC] & 0x80)) {
gb->io_registers[GB_IO_IF] |= 2;
}
/* Delete previous R/W bits */