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Carry is only unset if the operand >= A

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Peter Evans
2018-01-23 16:29:08 -06:00
parent dc97a6996e
commit 3c7002c6c7
1 changed files with 1 additions and 1 deletions
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tests/mos6502.arith.c
+1 -1
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@@ -26,7 +26,7 @@ Test(mos6502_arith, cmp)
cr_assert_eq(cpu->P & MOS_ZERO, 0);
cpu->A = 3;
mos6502_handle_cmp(cpu, 3);
mos6502_handle_cmp(cpu, 4);
cr_assert_eq(cpu->P & MOS_CARRY, 0);
cr_assert_eq(cpu->P & MOS_NEGATIVE, 0);
cr_assert_eq(cpu->P & MOS_ZERO, MOS_ZERO);