git.y1.nz

commit db483ce95f31655fec74ddc53495d78f33903c77
parent 555835549a6239fda6051873a5363a20ee9b93dc
Author: Lior Halphon <LIJI32@gmail.com>
Date:   Sat, 12 Dec 2020 20:40:35 +0200

Warn about potential odd-mode triggers

Diffstat:
M
Core/sm83_cpu.c
3
+++

1 file changed, 3 insertions(+), 0 deletions(-)
diff --git a/Core/sm83_cpu.c b/Core/sm83_cpu.c
@@ -351,6 +351,9 @@ static void leave_stop_mode(GB_gameboy_t *gb)
 static void stop(GB_gameboy_t *gb, uint8_t opcode)
 {
     if (gb->io_registers[GB_IO_KEY1] & 0x1) {
+        if (gb->cgb_double_speed && gb->io_registers[GB_IO_LCDC] & 0x80) {
+            GB_log(gb, "Returning from double speed mode while the PPU is on may trigger odd-mode\n");
+        }
         flush_pending_cycles(gb);
         bool needs_alignment = false;
         

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