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Add BRK interrupt test.

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This commit is contained in:
Radosław Kujawa 2017-02-07 21:23:31 +01:00
parent 299b7ee7d8
commit d29be055f9
5 changed files with 82 additions and 2 deletions
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1
test/Kyuafile
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@ -6,4 +6,5 @@ atf_test_program{name='test_bus'}
atf_test_program{name='test_emulation'}
atf_test_program{name='test_assemble'}
atf_test_program{name='test_stepping'}
atf_test_program{name='test_interrupt'}

4
test/Makefile
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@ -22,8 +22,8 @@ test_emulation : test_emulation.o $(UTILS) $(RK6502LIB)
test_assemble : test_assemble.o $(UTILS) $(RK6502LIB)
$(CC) -o $@ $(LDFLAGS) $< $(UTILS) $(RK6502LIB)
#test_interrupt: test_interrupt.o $(UTILS) $(RK6502LIB)
# $(CC) -o $@ $(LDFLAGS) $< $(UTILS) $(RK6502LIB)
test_interrupt: test_interrupt.o $(UTILS) $(RK6502LIB)
$(CC) -o $@ $(LDFLAGS) $< $(UTILS) $(RK6502LIB)
%.rom : %.s
$(VASM) $(VASMFLAGS) -o $@ $<

70
test/test_interrupt.c Normal file
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@ -0,0 +1,70 @@
#include <atf-c.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include "bus.h"
#include "rk65c02.h"
#include "instruction.h"
#include "utils.h"
/*
* Test case for software generated interrupt (by BRK instruction).
*/
ATF_TC_WITHOUT_HEAD(intr_brk);
ATF_TC_BODY(intr_brk, tc)
{
const uint16_t isr_addr = 0xC100;
rk65c02emu_t e;
bus_t b;
b = bus_init();
e = rk65c02_init(&b);
e.regs.PC = ROM_LOAD_ADDR;
e.regs.SP = 0xFF;
bus_write_1(&b, 0x10, 0x40);
ATF_REQUIRE(bus_load_file(&b, ROM_LOAD_ADDR,
rom_path("test_interrupt_brk.rom", tc)));
ATF_REQUIRE(bus_load_file(&b, isr_addr,
rom_path("test_interrupt_brk_isr.rom", tc)));
bus_write_1(&b, VECTOR_IRQ, isr_addr & 0xFF);
bus_write_1(&b, VECTOR_IRQ+1, isr_addr >> 8);
/* Execute first instruction, of the main program, which is a nop... */
rk65c02_step(&e, 1);
rk65c02_dump_regs(&e);
/* BRK is next, save its address... */
//brkaddr = e.regs.PC + 1;
/* Execute BRK instruction, which should start ISR (regardless of IRQ disable flag). */
rk65c02_step(&e, 1);
rk65c02_dump_regs(&e);
rk65c02_dump_stack(&e, 0x4);
/* Are we in ISR really? */
ATF_CHECK(e.regs.PC == isr_addr);
ATF_CHECK(e.regs.P & P_IRQ_DISABLE);
/* XXX: separate test case is needed to check return to main program. */
/*
rk65c02_step(&e, 1);
rk65c02_dump_regs(&e);
rk65c02_start(&e);
*/
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, intr_brk);
return (atf_no_error());
}

5
test/test_interrupt_brk.s Normal file
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@ -0,0 +1,5 @@
start: nop
brk
nop
stp

4
test/test_interrupt_brk_isr.s Normal file
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@ -0,0 +1,4 @@
isr: lda #0xAA
ldx #0x55
ldy #0xFF