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The stack now only works with 8bit values; disable carry

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This commit is contained in:
Peter Evans 2018-01-23 16:16:59 -06:00
parent 9215600148
commit 7a0ea50aa3
1 changed files with 9 additions and 6 deletions
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15
tests/mos6502.c
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@ -19,21 +19,20 @@ Test(mos6502, create)
cr_assert_eq(cpu->A, 0);
cr_assert_eq(cpu->X, 0);
cr_assert_eq(cpu->Y, 0);
cr_assert_eq(cpu->P, 0);
cr_assert_eq(cpu->S, 0);
cr_assert_eq(cpu->P, MOS_STATUS_DEFAULT);
cr_assert_eq(cpu->S, 0xff);
}
Test(mos6502, push_stack)
{
mos6502_push_stack(cpu, 0x1234);
mos6502_push_stack(cpu, 0x34);
cr_assert_eq(mos6502_get(cpu, 0x0100), 0x34);
cr_assert_eq(mos6502_get(cpu, 0x0101), 0x12);
}
Test(mos6502, pop_stack)
{
mos6502_push_stack(cpu, 0x1234);
cr_assert_eq(mos6502_pop_stack(cpu), 0x1234);
mos6502_push_stack(cpu, 0x34);
cr_assert_eq(mos6502_pop_stack(cpu), 0x34);
}
Test(mos6502, modify_status)
@ -101,6 +100,10 @@ Test(mos6502, execute)
mos6502_set(cpu, 11, 34);
mos6502_set(cpu, 10, 0x69);
cpu->PC = 10;
// Make sure we don't have carry turned on, or else we'll get 35!
cpu->P &= ~MOS_CARRY;
mos6502_execute(cpu);
cr_assert_eq(cpu->A, 34);
}