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Account for changes in behavior for INC/DEC
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@ -92,22 +92,21 @@ Test(mos6502_arith, cpy)
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Test(mos6502_arith, dec)
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{
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cpu->A = 5;
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mos6502_set(cpu, cpu->PC, 0x3A);
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mos6502_handle_dec(cpu, 0);
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cr_assert_eq(cpu->A, 4);
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cpu->eff_addr = 123;
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mos6502_set(cpu, 123, 44);
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// Note _also_ that DEC expects the number to be decremented will be
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// passed in as the effective operand, although it doesn't
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// necessarily need for that to be so.
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mos6502_handle_dec(cpu, 44);
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cr_assert_eq(mos6502_get(cpu, 123), 43);
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cpu->eff_addr = 0;
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cpu->A = 0;
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mos6502_handle_dec(cpu, 0);
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cr_assert_eq(cpu->A, 0xff);
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cpu->eff_addr = 123;
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mos6502_set(cpu, 123, 44);
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mos6502_set(cpu, cpu->PC, 0x00);
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mos6502_handle_dec(cpu, 44);
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cr_assert_eq(mos6502_get(cpu, 123), 43);
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}
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Test(mos6502_arith, dex)
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@ -132,6 +131,7 @@ Test(mos6502_arith, inc)
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cpu->A = 8;
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cpu->eff_addr = 0;
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mos6502_set(cpu, cpu->PC, 0x1A);
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mos6502_handle_inc(cpu, 0);
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cr_assert_eq(cpu->A, 9);
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