git.y1.nz

commit 9b202c670e11a9d558508f866fcae241a6b6a280
parent 4180348567ffbc1f17bcf29203cefddabe7f8669
Author: Lior Halphon <LIJI32@gmail.com>
Date:   Mon, 17 Oct 2022 14:34:55 +0300

Was technically implementation defined

Diffstat:
M
Core/sm83_cpu.c
2
+-

1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Core/sm83_cpu.c b/Core/sm83_cpu.c
@@ -967,7 +967,7 @@ static void sbc_a_r(GB_gameboy_t *gb, uint8_t opcode)
     value = get_src_value(gb, opcode);
     a = gb->af >> 8;
     carry = (gb->af & GB_CARRY_FLAG) != 0;
-    gb->af = ((a - value - carry) << 8) | GB_SUBTRACT_FLAG;
+    gb->af = (((uint8_t)(a - value - carry)) << 8) | GB_SUBTRACT_FLAG;
 
     if ((uint8_t) (a - value - carry) == 0) {
         gb->af |= GB_ZERO_FLAG;

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