mirror of
https://github.com/rkujawa/rk65c02.git
synced 2024-06-01 05:41:27 +00:00
585 lines
13 KiB
C
585 lines
13 KiB
C
#include <atf-c.h>
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#include <stdio.h>
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#include <stdbool.h>
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#include <string.h>
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#include "bus.h"
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#include "rk65c02.h"
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#include "utils.h"
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ATF_TC_WITHOUT_HEAD(emul_bit);
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ATF_TC_BODY(emul_bit, tc)
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{
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rk65c02emu_t e;
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bus_t b;
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b = bus_init();
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e = rk65c02_init(&b);
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/* BIT immediate */
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e.regs.A = 0x40;
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ATF_REQUIRE(rom_start(&e, "test_emulation_bit_imm.rom"));
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ATF_CHECK(!(e.regs.P & P_ZERO));
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ATF_CHECK(e.regs.P & P_SIGN_OVERFLOW);
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ATF_CHECK(!(e.regs.P & P_NEGATIVE));
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/* BIT zero page */
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e.regs.A = 0x40;
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bus_write_1(&b, 0x10, 0x80);
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ATF_REQUIRE(rom_start(&e, "test_emulation_bit_zp.rom"));
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ATF_CHECK(e.regs.P & P_ZERO);
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ATF_CHECK(!(e.regs.P & P_SIGN_OVERFLOW));
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ATF_CHECK(e.regs.P & P_NEGATIVE);
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/* BIT zero page X */
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e.regs.A = 0x40;
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e.regs.X = 0x1;
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bus_write_1(&b, 0x10, 0x40);
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ATF_REQUIRE(rom_start(&e, "test_emulation_bit_zpx.rom"));
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ATF_CHECK(!(e.regs.P & P_ZERO));
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ATF_CHECK(e.regs.P & P_SIGN_OVERFLOW);
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ATF_CHECK(!(e.regs.P & P_NEGATIVE));
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/* BIT absolute */
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e.regs.A = 0x80;
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bus_write_1(&b, 0x2010, 0x80);
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ATF_REQUIRE(rom_start(&e, "test_emulation_bit_abs.rom"));
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ATF_CHECK(!(e.regs.P & P_ZERO));
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ATF_CHECK(!(e.regs.P & P_SIGN_OVERFLOW));
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ATF_CHECK(e.regs.P & P_NEGATIVE);
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/* BIT absolute X */
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e.regs.A = 0x40;
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e.regs.X = 0x2;
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bus_write_1(&b, 0x2010, 0x80);
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ATF_REQUIRE(rom_start(&e, "test_emulation_bit_absx.rom"));
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ATF_CHECK(e.regs.P & P_ZERO);
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ATF_CHECK(!(e.regs.P & P_SIGN_OVERFLOW));
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ATF_CHECK(e.regs.P & P_NEGATIVE);
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bus_finish(&b);
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}
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ATF_TC_WITHOUT_HEAD(emul_dex_dey);
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ATF_TC_BODY(emul_dex_dey, tc)
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{
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rk65c02emu_t e;
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bus_t b;
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b = bus_init();
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e = rk65c02_init(&b);
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/* DEX */
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e.regs.X = 0x1;
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ATF_REQUIRE(rom_start(&e, "test_emulation_dex.rom"));
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ATF_CHECK(e.regs.X == 0x0);
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/* DEX underflow */
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ATF_REQUIRE(rom_start(&e, "test_emulation_dex.rom"));
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ATF_CHECK(e.regs.X == 0xFF);
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/* DEY */
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e.regs.Y = 0x1;
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ATF_REQUIRE(rom_start(&e, "test_emulation_dey.rom"));
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ATF_CHECK(e.regs.Y == 0x0);
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/* DEY underflow */
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ATF_REQUIRE(rom_start(&e, "test_emulation_dey.rom"));
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ATF_CHECK(e.regs.Y == 0xFF);
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bus_finish(&b);
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}
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ATF_TC_WITHOUT_HEAD(emul_inc);
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ATF_TC_BODY(emul_inc, tc)
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{
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rk65c02emu_t e;
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bus_t b;
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b = bus_init();
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e = rk65c02_init(&b);
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/* INC A */
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e.regs.A = 0x1;
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ATF_REQUIRE(rom_start(&e, "test_emulation_inc_a.rom"));
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ATF_CHECK(e.regs.A == 0x2);
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/* rk65c02_dump_regs(&e);*/
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/* INC A overflow */
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e.regs.A = 0xFF;
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ATF_REQUIRE(rom_start(&e, "test_emulation_inc_a.rom"));
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ATF_CHECK(e.regs.A == 0x0);
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/* INC zero page */
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bus_write_1(&b, 0x10, 0x00);
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ATF_REQUIRE(rom_start(&e, "test_emulation_inc_zp.rom"));
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ATF_CHECK(bus_read_1(&b, 0x10) == 0x1);
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/* INC zero page overflow */
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bus_write_1(&b, 0x10, 0xFF);
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ATF_REQUIRE(rom_start(&e, "test_emulation_inc_zp.rom"));
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ATF_CHECK(bus_read_1(&b, 0x10) == 0x00);
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/* INC zero page X */
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e.regs.X = 1;
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bus_write_1(&b, 0x11, 0x00);
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ATF_REQUIRE(rom_start(&e, "test_emulation_inc_zpx.rom"));
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ATF_CHECK(bus_read_1(&b, 0x11) == 0x1);
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/* INC zero page X overflow */
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bus_write_1(&b, 0x11, 0xFF);
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ATF_REQUIRE(rom_start(&e, "test_emulation_inc_zpx.rom"));
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ATF_CHECK(bus_read_1(&b, 0x11) == 0x00);
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/* INC absolute */
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bus_write_1(&b, 0x2010, 0xA0);
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ATF_REQUIRE(rom_start(&e, "test_emulation_inc_abs.rom"));
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ATF_CHECK(bus_read_1(&b, 0x2010) == 0xA1);
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/* INC absolute overflow */
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bus_write_1(&b, 0x2010, 0xFF);
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ATF_REQUIRE(rom_start(&e, "test_emulation_inc_abs.rom"));
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ATF_CHECK(bus_read_1(&b, 0x2010) == 0x00);
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/* INC absolute X */
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e.regs.X = 0x10;
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bus_write_1(&b, 0x2020, 0xFE);
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ATF_REQUIRE(rom_start(&e, "test_emulation_inc_absx.rom"));
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ATF_CHECK(bus_read_1(&b, 0x2020) == 0xFF);
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/* INC absolute X overflow */
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ATF_REQUIRE(rom_start(&e, "test_emulation_inc_absx.rom"));
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ATF_CHECK(bus_read_1(&b, 0x2020) == 0x00);
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bus_finish(&b);
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}
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ATF_TC_WITHOUT_HEAD(emul_inx_iny);
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ATF_TC_BODY(emul_inx_iny, tc)
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{
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rk65c02emu_t e;
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bus_t b;
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b = bus_init();
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e = rk65c02_init(&b);
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/* INX */
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e.regs.X = 0;
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ATF_REQUIRE(rom_start(&e, "test_emulation_inx.rom"));
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ATF_CHECK(e.regs.X == 0x1);
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/* INX overflow */
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e.regs.X = 0xFF;
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ATF_REQUIRE(rom_start(&e, "test_emulation_inx.rom"));
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ATF_CHECK(e.regs.X == 0x0);
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/* INY */
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e.regs.Y = 0;
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ATF_REQUIRE(rom_start(&e, "test_emulation_iny.rom"));
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ATF_CHECK(e.regs.Y == 0x1);
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/* INY overflow */
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e.regs.Y = 0xFF;
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ATF_REQUIRE(rom_start(&e, "test_emulation_iny.rom"));
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ATF_CHECK(e.regs.Y == 0x0);
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bus_finish(&b);
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}
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ATF_TC_WITHOUT_HEAD(emul_lda);
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ATF_TC_BODY(emul_lda, tc)
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{
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rk65c02emu_t e;
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bus_t b;
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b = bus_init();
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e = rk65c02_init(&b);
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/* LDA immediate */
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ATF_REQUIRE(rom_start(&e, "test_emulation_lda_imm.rom"));
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/* ATF_CHECK(e.state == STOPPED); // separate test case for states? */
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ATF_CHECK(e.regs.PC == ROM_LOAD_ADDR+3); // separate test case for PC? */
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ATF_CHECK(e.regs.A == 0xAF);
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/* LDA zero page */
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bus_write_1(&b, 0x10, 0xAE);
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ATF_REQUIRE(rom_start(&e, "test_emulation_lda_zp.rom"));
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ATF_CHECK(e.regs.A == 0xAE);
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/* LDA absolute */
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bus_write_1(&b, 0x2F5A, 0xEA);
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ATF_REQUIRE(rom_start(&e, "test_emulation_lda_abs.rom"));
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ATF_CHECK(e.regs.A == 0xEA);
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/* LDA absolute X */
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bus_write_1(&b, 0x2F5A, 0xEB);
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e.regs.X = 0x5A;
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ATF_REQUIRE(rom_start(&e, "test_emulation_lda_absx.rom"));
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ATF_CHECK(e.regs.A == 0xEB);
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/* LDA absolute X */
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bus_write_1(&b, 0x2F5E, 0xEC);
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e.regs.Y = 0x5E;
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ATF_REQUIRE(rom_start(&e, "test_emulation_lda_absy.rom"));
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ATF_CHECK(e.regs.A == 0xEC);
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bus_finish(&b);
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}
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ATF_TC_WITHOUT_HEAD(emul_stz);
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ATF_TC_BODY(emul_stz, tc)
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{
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rk65c02emu_t e;
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bus_t b;
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b = bus_init();
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e = rk65c02_init(&b);
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/* STZ zp */
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bus_write_1(&b, 0x10, 0xAA);
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ATF_REQUIRE(rom_start(&e, "test_emulation_stz_zp.rom"));
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ATF_CHECK(bus_read_1(&b, 0x10) == 0x00);
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bus_finish(&b);
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}
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ATF_TC_WITHOUT_HEAD(emul_clc_sec);
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ATF_TC_BODY(emul_clc_sec, tc)
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{
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rk65c02emu_t e;
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bus_t b;
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b = bus_init();
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e = rk65c02_init(&b);
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/* SEC */
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e.regs.P &= ~P_CARRY;
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ATF_REQUIRE(rom_start(&e, "test_emulation_sec.rom"));
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ATF_CHECK(e.regs.P & P_CARRY);
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/* CLC */
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ATF_REQUIRE(rom_start(&e, "test_emulation_clc.rom"));
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ATF_CHECK(e.regs.P ^ P_CARRY);
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bus_finish(&b);
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}
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ATF_TC_WITHOUT_HEAD(emul_and);
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ATF_TC_BODY(emul_and, tc)
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{
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rk65c02emu_t e;
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bus_t b;
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b = bus_init();
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e = rk65c02_init(&b);
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/* AND immediate */
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e.regs.A = 0xFF;
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ATF_REQUIRE(rom_start(&e, "test_emulation_and_imm.rom"));
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ATF_CHECK(e.regs.A == 0xAA);
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/* AND zero page */
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/* bus_write_1(&b, 0x10, 0xAE);
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ATF_REQUIRE(rom_start(&e, "test_emulation_and_zp.rom"));
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ATF_CHECK(e.regs.A == 0xAE);*/
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bus_finish(&b);
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}
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ATF_TC_WITHOUT_HEAD(emul_nop);
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ATF_TC_BODY(emul_nop, tc)
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{
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rk65c02emu_t e;
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bus_t b;
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b = bus_init();
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e = rk65c02_init(&b);
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e.regs.PC = ROM_LOAD_ADDR;
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ATF_REQUIRE(rom_start(&e, "test_emulation_nop.rom"));
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ATF_CHECK(e.regs.PC == ROM_LOAD_ADDR+2);
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bus_finish(&b);
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}
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ATF_TC_WITHOUT_HEAD(emul_sta);
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ATF_TC_BODY(emul_sta, tc)
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{
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rk65c02emu_t e;
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bus_t b;
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b = bus_init();
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e = rk65c02_init(&b);
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/* STA zero page */
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e.regs.A = 0xAA;
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ATF_REQUIRE(rom_start(&e, "test_emulation_sta_zp.rom"));
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ATF_CHECK(bus_read_1(&b, 0x20) == 0xAA);
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/* STA zero page X */
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e.regs.A = 0x55;
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e.regs.X = 0x1;
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ATF_REQUIRE(rom_start(&e, "test_emulation_sta_zpx.rom"));
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ATF_CHECK(bus_read_1(&b, 0x20) == 0x55);
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/* STA absolute */
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e.regs.A = 0xAA;
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ATF_REQUIRE(rom_start(&e, "test_emulation_sta_abs.rom"));
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ATF_CHECK(bus_read_1(&b, 0x2010) == 0xAA);
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/* STA absolute X */
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e.regs.A = 0x55;
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e.regs.X = 0x10;
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ATF_REQUIRE(rom_start(&e, "test_emulation_sta_absx.rom"));
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ATF_CHECK(bus_read_1(&b, 0x2010) == 0x55);
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/* STA absolute Y */
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e.regs.A = 0xAA;
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e.regs.X = 0;
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e.regs.Y = 0x1;
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ATF_REQUIRE(rom_start(&e, "test_emulation_sta_absy.rom"));
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ATF_CHECK(bus_read_1(&b, 0x2010) == 0xAA);
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/* STA indirect zero */
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e.regs.A = 0x55;
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bus_write_1(&b, 0x25, 0x10);
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bus_write_1(&b, 0x26, 0x20);
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ATF_REQUIRE(rom_start(&e, "test_emulation_sta_izp.rom"));
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ATF_CHECK(bus_read_1(&b, 0x2010) == 0x55);
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/* STA indirect zero page X */
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e.regs.A = 0xAA;
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e.regs.X = 0x4;
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e.regs.Y = 0;
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ATF_REQUIRE(rom_start(&e, "test_emulation_sta_izpx.rom"));
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ATF_CHECK(bus_read_1(&b, 0x2010) == 0xAA);
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/* STA indirect zero page Y */
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e.regs.A = 0x54;
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e.regs.X = 0;
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e.regs.Y = 0x1;
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ATF_REQUIRE(rom_start(&e, "test_emulation_sta_izpy.rom"));
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ATF_CHECK(bus_read_1(&b, 0x2010) == 0x55);
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bus_finish(&b);
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}
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ATF_TC_WITHOUT_HEAD(emul_ora);
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ATF_TC_BODY(emul_ora, tc)
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{
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rk65c02emu_t e;
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bus_t b;
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b = bus_init();
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e = rk65c02_init(&b);
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/* ORA immediate */
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e.regs.A = 0x55;
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ATF_REQUIRE(rom_start(&e, "test_emulation_ora_imm.rom"));
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ATF_CHECK(e.regs.A == 0xFF);
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/* ORA zero page */
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e.regs.A = 0xAA;
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bus_write_1(&b, 0x10, 0x55);
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ATF_REQUIRE(rom_start(&e, "test_emulation_ora_zp.rom"));
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ATF_CHECK(e.regs.A == 0xFF);
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/* ORA zero page X */
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e.regs.A = 0xAA;
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e.regs.X = 0x11;
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bus_write_1(&b, 0x21, 0x55);
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ATF_REQUIRE(rom_start(&e, "test_emulation_ora_zpx.rom"));
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ATF_CHECK(e.regs.A == 0xFF);
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/* ORA absolute */
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e.regs.A = 0x55;
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bus_write_1(&b, 0x2A01, 0xAA);
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ATF_REQUIRE(rom_start(&e, "test_emulation_ora_abs.rom"));
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ATF_CHECK(e.regs.A == 0xFF);
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/* ORA absolute X */
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e.regs.A = 0xAA;
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e.regs.X = 0x1;
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bus_write_1(&b, 0x2A01, 0x55);
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ATF_REQUIRE(rom_start(&e, "test_emulation_ora_absx.rom"));
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ATF_CHECK(e.regs.A == 0xFF);
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/* ORA absolute Y */
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e.regs.A = 0x55;
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e.regs.X = 0;
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e.regs.Y = 0x2;
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bus_write_1(&b, 0x2A02, 0xAA);
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ATF_REQUIRE(rom_start(&e, "test_emulation_ora_absy.rom"));
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ATF_CHECK(e.regs.A == 0xFF);
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/* ORA indirect zero */
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e.regs.A = 0xAA;
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bus_write_1(&b, 0x2A04, 0x55);
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bus_write_1(&b, 0x12, 0x04);
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bus_write_1(&b, 0x13, 0x2A);
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ATF_REQUIRE(rom_start(&e, "test_emulation_ora_izp.rom"));
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ATF_CHECK(e.regs.A == 0xFF);
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/* ORA indirect zero page X */
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e.regs.A = 0xAA;
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e.regs.X = 0x2;
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e.regs.Y = 0;
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ATF_REQUIRE(rom_start(&e, "test_emulation_ora_izpx.rom"));
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ATF_CHECK(e.regs.A == 0xFF);
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/* ORA indirect zero page Y */
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e.regs.A = 0xAA;
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e.regs.X = 0;
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e.regs.Y = 0x1;
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bus_write_1(&b, 0x2A04, 0x54);
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bus_write_1(&b, 0x14, 0x04);
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bus_write_1(&b, 0x15, 0x2A);
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ATF_REQUIRE(rom_start(&e, "test_emulation_ora_izpy.rom"));
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ATF_CHECK(e.regs.A == 0xFF);
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bus_finish(&b);
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}
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ATF_TC_WITHOUT_HEAD(emul_txa_tya_tax_tay);
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ATF_TC_BODY(emul_txa_tya_tax_tay, tc)
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{
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rk65c02emu_t e;
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bus_t b;
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b = bus_init();
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e = rk65c02_init(&b);
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e.regs.A = 0x0;
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e.regs.X = 0xAA;
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e.regs.Y = 0x55;
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ATF_REQUIRE(rom_start(&e, "test_emulation_txa.rom"));
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ATF_CHECK(e.regs.A == 0xAA);
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ATF_REQUIRE(rom_start(&e, "test_emulation_tya.rom"));
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ATF_CHECK(e.regs.A == 0x55);
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|
|
|
ATF_REQUIRE(rom_start(&e, "test_emulation_tax.rom"));
|
|
ATF_CHECK(e.regs.X == 0x55);
|
|
|
|
e.regs.A = 0xFF;
|
|
ATF_REQUIRE(rom_start(&e, "test_emulation_tay.rom"));
|
|
ATF_CHECK(e.regs.A == 0xFF);
|
|
|
|
bus_finish(&b);
|
|
}
|
|
|
|
/* test stack operation and stack related opcodes - PLA, PHA... */
|
|
ATF_TC_WITHOUT_HEAD(emul_stack);
|
|
ATF_TC_BODY(emul_stack, tc)
|
|
{
|
|
rk65c02emu_t e;
|
|
bus_t b;
|
|
|
|
b = bus_init();
|
|
e = rk65c02_init(&b);
|
|
|
|
/* place 0xAA on stack */
|
|
e.regs.SP = 0xFF;
|
|
e.regs.A = 0xAA;
|
|
|
|
ATF_REQUIRE(rom_start(&e, "test_emulation_pha.rom"));
|
|
|
|
ATF_CHECK(e.regs.SP == 0xFE);
|
|
ATF_CHECK(bus_read_1(e.bus, STACK_END) == 0xAA);
|
|
|
|
/*
|
|
* Run again to see if stack pointer further decrements and we'll
|
|
* end up with one more value on stack.
|
|
*/
|
|
e.regs.PC = ROM_LOAD_ADDR;
|
|
e.regs.A = 0xAB;
|
|
|
|
rk65c02_start(&e);
|
|
|
|
ATF_CHECK(e.regs.SP == 0xFD);
|
|
ATF_CHECK(bus_read_1(e.bus, STACK_END) == 0xAA);
|
|
ATF_CHECK(bus_read_1(e.bus, STACK_END-1) == 0xAB);
|
|
|
|
/*
|
|
* Now let's see if loading back into accumulator works.
|
|
*/
|
|
e.regs.A = 0x0;
|
|
ATF_REQUIRE(rom_start(&e, "test_emulation_pla.rom"));
|
|
|
|
ATF_CHECK(e.regs.SP == 0xFE);
|
|
ATF_CHECK(e.regs.A == 0xAB);
|
|
|
|
bus_finish(&b);
|
|
}
|
|
|
|
ATF_TC_WITHOUT_HEAD(emul_php_plp);
|
|
ATF_TC_BODY(emul_php_plp, tc)
|
|
{
|
|
rk65c02emu_t e;
|
|
bus_t b;
|
|
|
|
b = bus_init();
|
|
e = rk65c02_init(&b);
|
|
|
|
e.regs.SP = 0xFF;
|
|
e.regs.P |= P_CARRY|P_ZERO|P_UNDEFINED;
|
|
|
|
ATF_REQUIRE(rom_start(&e, "test_emulation_php.rom"));
|
|
|
|
ATF_CHECK(e.regs.SP == 0xFE);
|
|
ATF_CHECK(bus_read_1(e.bus, STACK_END) == (P_CARRY|P_ZERO|P_UNDEFINED));
|
|
|
|
/*
|
|
* Now let's see if loading back into accumulator works.
|
|
*/
|
|
bus_write_1(e.bus, STACK_END, P_CARRY|P_DECIMAL);
|
|
ATF_REQUIRE(rom_start(&e, "test_emulation_plp.rom"));
|
|
|
|
ATF_CHECK(e.regs.SP == 0xFF);
|
|
ATF_CHECK(e.regs.P == (P_CARRY|P_DECIMAL|P_UNDEFINED));
|
|
|
|
bus_finish(&b);
|
|
}
|
|
|
|
ATF_TC_WITHOUT_HEAD(emul_phx_phy_plx_ply);
|
|
ATF_TC_BODY(emul_phx_phy_plx_ply, tc)
|
|
{
|
|
rk65c02emu_t e;
|
|
bus_t b;
|
|
|
|
b = bus_init();
|
|
e = rk65c02_init(&b);
|
|
|
|
/* check push X to stack */
|
|
e.regs.X = 0xAA;
|
|
e.regs.SP = 0xFF;
|
|
|
|
ATF_REQUIRE(rom_start(&e, "test_emulation_phx.rom"));
|
|
|
|
ATF_CHECK(e.regs.SP == 0xFE);
|
|
ATF_CHECK(bus_read_1(e.bus, STACK_END) == 0xAA);
|
|
|
|
/* check pull X from stack */
|
|
e.regs.X = 0;
|
|
|
|
ATF_REQUIRE(rom_start(&e, "test_emulation_plx.rom"));
|
|
|
|
ATF_CHECK(e.regs.SP == 0xFF);
|
|
ATF_CHECK(e.regs.X == 0xAA);
|
|
|
|
/* check push Y to stack */
|
|
e.regs.Y = 0x55;
|
|
e.regs.SP = 0xFF;
|
|
|
|
ATF_REQUIRE(rom_start(&e, "test_emulation_phy.rom"));
|
|
|
|
ATF_CHECK(e.regs.SP == 0xFE);
|
|
ATF_CHECK(bus_read_1(e.bus, STACK_END) == 0x55);
|
|
|
|
/* check pull X from stack */
|
|
e.regs.Y = 0xFF;
|
|
|
|
ATF_REQUIRE(rom_start(&e, "test_emulation_ply.rom"));
|
|
|
|
ATF_CHECK(e.regs.SP == 0xFF);
|
|
ATF_CHECK(e.regs.Y == 0x55);
|
|
|
|
bus_finish(&b);
|
|
}
|
|
|
|
ATF_TP_ADD_TCS(tp)
|
|
{
|
|
ATF_TP_ADD_TC(tp, emul_and);
|
|
ATF_TP_ADD_TC(tp, emul_bit);
|
|
ATF_TP_ADD_TC(tp, emul_dex_dey);
|
|
ATF_TP_ADD_TC(tp, emul_clc_sec);
|
|
ATF_TP_ADD_TC(tp, emul_inc);
|
|
ATF_TP_ADD_TC(tp, emul_inx_iny);
|
|
ATF_TP_ADD_TC(tp, emul_lda);
|
|
ATF_TP_ADD_TC(tp, emul_nop);
|
|
ATF_TP_ADD_TC(tp, emul_ora);
|
|
ATF_TP_ADD_TC(tp, emul_stz);
|
|
ATF_TP_ADD_TC(tp, emul_php_plp);
|
|
ATF_TP_ADD_TC(tp, emul_phx_phy_plx_ply);
|
|
ATF_TP_ADD_TC(tp, emul_stack);
|
|
ATF_TP_ADD_TC(tp, emul_txa_tya_tax_tay);
|
|
ATF_TP_ADD_TC(tp, emul_sta);
|
|
|
|
return (atf_no_error());
|
|
}
|
|
|