mirror of
https://github.com/pevans/erc-c.git
synced 2024-12-30 06:29:48 +00:00
123 lines
2.7 KiB
C
123 lines
2.7 KiB
C
#include <criterion/criterion.h>
|
|
|
|
#include "mos6502.h"
|
|
#include "mos6502.enums.h"
|
|
#include "mos6502.tests.h"
|
|
|
|
TestSuite(mos6502_arith, .init = setup, .fini = teardown);
|
|
|
|
Test(mos6502_arith, adc)
|
|
{
|
|
cpu->A = 5;
|
|
mos6502_handle_adc(cpu, 3);
|
|
cr_assert_eq(cpu->A, 8);
|
|
|
|
cpu->P |= MOS_CARRY;
|
|
mos6502_handle_adc(cpu, 64);
|
|
cr_assert_eq(cpu->A, 73);
|
|
}
|
|
|
|
Test(mos6502_arith, cmp)
|
|
{
|
|
cpu->A = 5;
|
|
mos6502_handle_cmp(cpu, 3);
|
|
cr_assert_eq(cpu->P & MOS_CARRY, MOS_CARRY);
|
|
cr_assert_eq(cpu->P & MOS_NEGATIVE, 0);
|
|
cr_assert_eq(cpu->P & MOS_ZERO, 0);
|
|
|
|
cpu->A = 3;
|
|
mos6502_handle_cmp(cpu, 3);
|
|
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);
|
|
|
|
cpu->A = 192;
|
|
mos6502_handle_cmp(cpu, 3);
|
|
cr_assert_eq(cpu->P & MOS_CARRY, MOS_CARRY);
|
|
cr_assert_eq(cpu->P & MOS_NEGATIVE, MOS_NEGATIVE);
|
|
cr_assert_eq(cpu->P & MOS_ZERO, 0);
|
|
}
|
|
|
|
Test(mos6502_arith, cpx)
|
|
{
|
|
cpu->X = 5;
|
|
mos6502_handle_cpx(cpu, 3);
|
|
cr_assert_eq(cpu->P & MOS_CARRY, MOS_CARRY);
|
|
cr_assert_eq(cpu->P & MOS_NEGATIVE, 0);
|
|
cr_assert_eq(cpu->P & MOS_ZERO, 0);
|
|
}
|
|
|
|
Test(mos6502_arith, cpy)
|
|
{
|
|
cpu->Y = 5;
|
|
mos6502_handle_cpy(cpu, 3);
|
|
cr_assert_eq(cpu->P & MOS_CARRY, MOS_CARRY);
|
|
cr_assert_eq(cpu->P & MOS_NEGATIVE, 0);
|
|
cr_assert_eq(cpu->P & MOS_ZERO, 0);
|
|
}
|
|
|
|
Test(mos6502_arith, dec)
|
|
{
|
|
// Note that DEC does NOT decrement the accumulator if the last
|
|
// address is not set. It does _nothing_.
|
|
cpu->A = 5;
|
|
mos6502_handle_dec(cpu, 0);
|
|
cr_assert_neq(cpu->A, 4);
|
|
|
|
cpu->last_addr = 123;
|
|
vm_segment_set(cpu->memory, 123, 44);
|
|
|
|
// Note _also_ that DEC expects the number to be decremented will be
|
|
// passed in as the effective operand, although it doesn't
|
|
// necessarily need for that to be so.
|
|
mos6502_handle_dec(cpu, 44);
|
|
cr_assert_eq(vm_segment_get(cpu->memory, 123), 43);
|
|
}
|
|
|
|
Test(mos6502_arith, dex)
|
|
{
|
|
cpu->X = 5;
|
|
mos6502_handle_dex(cpu, 0);
|
|
cr_assert_eq(cpu->X, 4);
|
|
}
|
|
|
|
Test(mos6502_arith, dey)
|
|
{
|
|
cpu->Y = 5;
|
|
mos6502_handle_dey(cpu, 0);
|
|
cr_assert_eq(cpu->Y, 4);
|
|
}
|
|
|
|
Test(mos6502_arith, inc)
|
|
{
|
|
cpu->last_addr = 123;
|
|
mos6502_handle_inc(cpu, 55);
|
|
cr_assert_eq(vm_segment_get(cpu->memory, 123), 56);
|
|
}
|
|
|
|
Test(mos6502_arith, inx)
|
|
{
|
|
cpu->X = 5;
|
|
mos6502_handle_inx(cpu, 0);
|
|
cr_assert_eq(cpu->X, 6);
|
|
}
|
|
|
|
Test(mos6502_arith, iny)
|
|
{
|
|
cpu->Y = 5;
|
|
mos6502_handle_iny(cpu, 0);
|
|
cr_assert_eq(cpu->Y, 6);
|
|
}
|
|
|
|
Test(mos6502_arith, sbc)
|
|
{
|
|
cpu->A = 5;
|
|
mos6502_handle_sbc(cpu, 3);
|
|
cr_assert_eq(cpu->A, 2);
|
|
|
|
cpu->P |= MOS_CARRY;
|
|
cpu->A = 16;
|
|
mos6502_handle_sbc(cpu, 8);
|
|
cr_assert_eq(cpu->A, 7);
|
|
}
|