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erc-c/tests/mos6502.exec.c

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#include <criterion/criterion.h>
#include "mos6502.h"
#include "mos6502.enums.h"
#include "mos6502.tests.h"
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TestSuite(mos6502_exec, .init = setup, .fini = teardown);
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Test(mos6502_exec, brk)
{
vm_8bit orig_P = cpu->P;
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cpu->PC = 123;
mos6502_handle_brk(cpu, 0);
cr_assert_eq(cpu->PC, 125);
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cr_assert_eq(cpu->P & MOS_INTERRUPT, MOS_INTERRUPT);
cr_assert_eq(mos6502_pop_stack(cpu), orig_P);
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cr_assert_eq(mos6502_pop_stack(cpu), 123);
}
Test(mos6502_exec, jmp)
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{
cpu->PC = 123;
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cpu->eff_addr = 234;
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mos6502_handle_jmp(cpu, 0);
cr_assert_eq(cpu->PC, 234);
}
Test(mos6502_exec, jsr)
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{
cpu->PC = 123;
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cpu->eff_addr = 235;
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mos6502_handle_jsr(cpu, 0);
cr_assert_eq(cpu->PC, 235);
cr_assert_eq(mos6502_pop_stack(cpu), 125);
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}
Test(mos6502_exec, nop)
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{
// currently this test does nothing -- we _should_ test to see if we
// pass the right number of cycles, though.
}
Test(mos6502_exec, rti)
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{
mos6502_push_stack(cpu, 222);
mos6502_push_stack(cpu, cpu->P);
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mos6502_handle_rti(cpu, 0);
cr_assert_eq(cpu->PC, 222);
}
Test(mos6502_exec, rts)
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{
mos6502_push_stack(cpu, 233);
mos6502_handle_rts(cpu, 0);
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cr_assert_eq(cpu->PC, 234);
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}