2011-05-05 21:25:44 +00:00
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/*
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* Copyright (c) 2011, Preston Skupinski <skupinsk@cse.msu.edu>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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function run_tests() {
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test_rep();
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test_sep();
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2011-05-06 01:41:10 +00:00
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test_branching();
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2011-05-07 15:02:17 +00:00
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test_adc();
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}
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function test_adc() {
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module("ADC");
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test("Test normal addition of two 16-bit numbers that don't cause an "+
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"overflow (m bit is 0)", function() {
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var cpu = new CPU_65816();
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cpu.execute("18fb18c230a90100690100");
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equals(cpu.r.a, 2, "0x0001 + 0x0001 should result in 0x0002 when using "+
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"ADC");
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equals(cpu.p.n, 0, "0x0001 + 0x0001 does not result in a negative "+
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"two's complement number when adding with ADC.");
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equals(cpu.p.c, 0, "0x0001 + 0x0001 should not set the carry(c) bit when "+
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"adding with ADC");
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equals(cpu.p.z, 0, "0x0001 + 0x0001 should not set the zero(z) bit when "+
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"adding with ADC");
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2011-05-07 16:17:14 +00:00
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equals(cpu.p.v, 0, "0x0001 + 0x0001 should not set the overflow(v) bit "+
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"when adding with ADC");
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2011-05-07 15:02:17 +00:00
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});
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test("Test normal addition of two 8-bit numbers that don't cause an "+
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"overflow (m bit is 1)", function() {
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var cpu = new CPU_65816();
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cpu.execute("18fb18e230a9016901");
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equals(cpu.r.a, 2, "0x01 + 0x01 should result in 0x02 when using "+
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"ADC");
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equals(cpu.p.n, 0, "0x01 + 0x01 does not result in a negative "+
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"two's complement number when adding with ADC.");
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equals(cpu.p.c, 0, "0x01 + 0x01 should not set the carry(c) bit when "+
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"adding with ADC");
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equals(cpu.p.z, 0, "0x01 + 0x01 should not set the zero(z) bit when "+
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"adding with ADC");
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2011-05-07 16:17:14 +00:00
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equals(cpu.p.v, 0, "0x01 + 0x01 should not set the overflow(v) bit "+
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"when adding with ADC");
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2011-05-07 15:02:17 +00:00
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});
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test("Test that overflow sets the carry flag and works in general with two"+
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"16-bit numbers (m bit is 0)", function() {
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var cpu = new CPU_65816();
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cpu.execute("18fb18c230a9ffff690100");
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equals(cpu.p.c, 1, "0xffff + 0x0001 should set the carry bit when using "+
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"ADC");
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equals(cpu.r.a, 0, "0xffff + 0x0001 should result in the accumulator "+
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"being 0 when using ADC");
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equals(cpu.p.n, 0, "0xffff + 0x0001 should not set the negative(n) bit "+
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"when using ADC");
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equals(cpu.p.z, 1, "0xffff + 0x0001 should set the zero(z) bit when using "+
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"ADC");
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2011-05-07 16:17:14 +00:00
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equals(cpu.p.v, 0, "0xffff + 0x0001 should not set the overflow(v) bit "+
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"when using ADC");
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2011-05-07 15:02:17 +00:00
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});
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test("Test that overflow sets the carry flag and works in general with two"+
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"8-bit numbers (m bit is 1)", function() {
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var cpu = new CPU_65816();
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cpu.execute("18fb18e230a9ff6901");
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equals(cpu.p.c, 1, "0xff + 0x01 should set the carry bit when using "+
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"ADC");
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equals(cpu.r.a, 0, "0xff + 0x01 should result in the accumulator "+
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"being 0 when using ADC");
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equals(cpu.p.n, 0, "0xff + 0x01 should not set the negative(n) bit when "+
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"using ADC");
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equals(cpu.p.z, 1, "0xff + 0x01 should set the zero(z) bit when using "+
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"ADC");
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2011-05-07 16:17:14 +00:00
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equals(cpu.p.v, 0, "0xff + 0x01 should not set the overflow(v) bit when "+
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"using ADC");
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});
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test("Test signed overflow with two 8-bit numbers (m bit is 1)", function() {
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var cpu = new CPU_65816();
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cpu.execute("18fb18e230a97f6901");
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equals(cpu.r.a, 0x80, "0x7f + 0x01 should result in 0x80 when "+
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"using ADC");
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equals(cpu.p.v, 1, "0x7f + 0x01 should set the overflow(v) bit when "+
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"using ADC");
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equals(cpu.p.c, 0, "0x7f + 0x01 should not set the carry(c) bit when "+
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"using ADC");
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equals(cpu.p.z, 0, "0x7f + 0x01 should not set the zero(z) bit when "+
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"using ADC");
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equals(cpu.p.n, 1, "0x7f + 0x01 should set the negative(n) bit when "+
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"using ADC");
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});
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test("Test signed overflow with two 16-bit numbers (m bit is 0)", function() {
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var cpu = new CPU_65816();
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cpu.execute("18fb18c230a9ff7f690100");
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equals(cpu.r.a, 0x8000, "0x7fff + 0x0001 should result in 0x8000 when "+
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"using ADC");
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equals(cpu.p.v, 1, "0x7fff + 0x0001 should set the overflow(v) bit when "+
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"using ADC");
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2011-05-07 17:08:02 +00:00
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equals(cpu.p.c, 0, "0x7fff + 0x0001 should not set the carry(c) bit when "+
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"using ADC");
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equals(cpu.p.z, 0, "0x7fff + 0x0001 should not set the zero(z) bit when "+
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"using ADC");
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equals(cpu.p.n, 1, "0x7fff + 0x0001 should set the negative(n) bit when "+
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"using ADC");
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});
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test("Test ADC direct page with 8-bit numbers (m bit is 1)", function() {
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var cpu = new CPU_65816();
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cpu.execute("18fb18e230a90185ffa97f65ff");
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equals(cpu.r.a, 0x80, "0x7f + 0x01 should result in 0x80 when "+
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"using ADC");
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equals(cpu.p.v, 1, "0x7f + 0x01 should set the overflow(v) bit when "+
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"using ADC");
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equals(cpu.p.c, 0, "0x7f + 0x01 should not set the carry(c) bit when "+
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"using ADC");
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equals(cpu.p.z, 0, "0x7f + 0x01 should not set the zero(z) bit when "+
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"using ADC");
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equals(cpu.p.n, 1, "0x7f + 0x01 should set the negative(n) bit when "+
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"using ADC");
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});
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test("Test ADC direct page with 16-bit numbers (m bit is 0)", function() {
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var cpu = new CPU_65816();
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2011-05-07 18:37:29 +00:00
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cpu.execute("18fb18c230a9010085fea9ff7f65fe");
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2011-05-07 17:08:02 +00:00
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equals(cpu.r.a, 0x8000, "0x7fff + 0x0001 should result in 0x8000 when "+
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"using ADC");
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equals(cpu.p.v, 1, "0x7fff + 0x0001 should set the overflow(v) bit when "+
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"using ADC");
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equals(cpu.p.c, 0, "0x7fff + 0x0001 should not set the carry(c) bit when "+
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"using ADC");
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equals(cpu.p.z, 0, "0x7fff + 0x0001 should not set the zero(z) bit when "+
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"using ADC");
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equals(cpu.p.n, 1, "0x7fff + 0x0001 should set the negative(n) bit when "+
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"using ADC");
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});
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test("Test ADC absolute with 8-bit numbers (m bit is 1)", function() {
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var cpu = new CPU_65816();
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cpu.execute("18fb18e230a9018dffffa97f6dffff");
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equals(cpu.r.a, 0x80, "0x7f + 0x01 should result in 0x80 when "+
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"using ADC");
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equals(cpu.p.v, 1, "0x7f + 0x01 should set the overflow(v) bit when "+
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"using ADC");
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equals(cpu.p.c, 0, "0x7f + 0x01 should not set the carry(c) bit when "+
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"using ADC");
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equals(cpu.p.z, 0, "0x7f + 0x01 should not set the zero(z) bit when "+
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"using ADC");
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equals(cpu.p.n, 1, "0x7f + 0x01 should set the negative(n) bit when "+
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"using ADC");
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});
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test("Test ADC absolute with 16-bit numbers (m bit is 0)", function() {
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var cpu = new CPU_65816();
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2011-05-07 18:37:29 +00:00
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cpu.execute("18fb18c230a901008dffffa9ff7f6dffff");
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2011-05-07 17:08:02 +00:00
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equals(cpu.r.a, 0x8000, "0x7fff + 0x0001 should result in 0x8000 when "+
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"using ADC");
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equals(cpu.p.v, 1, "0x7fff + 0x0001 should set the overflow(v) bit when "+
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"using ADC");
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2011-05-07 16:17:14 +00:00
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equals(cpu.p.c, 0, "0x7fff + 0x0001 should not set the carry(c) bit when "+
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"using ADC");
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equals(cpu.p.z, 0, "0x7fff + 0x0001 should not set the zero(z) bit when "+
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"using ADC");
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equals(cpu.p.n, 1, "0x7fff + 0x0001 should set the negative(n) bit when "+
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"using ADC");
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2011-05-07 15:02:17 +00:00
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});
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2011-05-07 18:37:29 +00:00
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test("Test ADC direct page indirect with 8-bit numbers (m bit is 1)",
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function() {
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var cpu = new CPU_65816();
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cpu.execute("18fb18e230a90185ffa9ff85fd64fea97f72fd");
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equals(cpu.r.a, 0x80, "0x7f + 0x01 should result in 0x80 when "+
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"using ADC");
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equals(cpu.p.v, 1, "0x7f + 0x01 should set the overflow(v) bit when "+
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"using ADC");
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equals(cpu.p.c, 0, "0x7f + 0x01 should not set the carry(c) bit when "+
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"using ADC");
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equals(cpu.p.z, 0, "0x7f + 0x01 should not set the zero(z) bit when "+
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"using ADC");
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equals(cpu.p.n, 1, "0x7f + 0x01 should set the negative(n) bit when "+
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"using ADC");
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});
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test("Test ADC direct page indirect with 16-bit numbers (m bit is 0)",
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function() {
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var cpu = new CPU_65816();
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cpu.execute("18fb18c230a901008500a9000085bba9ff7f72bb");
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equals(cpu.r.a, 0x8000, "0x7fff + 0x0001 should result in 0x8000 when "+
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"using ADC");
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equals(cpu.p.v, 1, "0x7fff + 0x0001 should set the overflow(v) bit when "+
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"using ADC");
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equals(cpu.p.c, 0, "0x7fff + 0x0001 should not set the carry(c) bit when "+
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"using ADC");
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equals(cpu.p.z, 0, "0x7fff + 0x0001 should not set the zero(z) bit when "+
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"using ADC");
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equals(cpu.p.n, 1, "0x7fff + 0x0001 should set the negative(n) bit when "+
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"using ADC");
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});
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2011-05-06 01:41:10 +00:00
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}
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function test_branching() {
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module("Branching");
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test("Test that BRA with 0x00 as its argument doesn't increment or "+
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"decrement the program counter", function() {
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var cpu = new CPU_65816();
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cpu.execute("8000");
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// NOTE: 0x8003 is subject to change however I decide to lay out memory
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// eventually.
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equals(cpu.r.pc, 0x8003, "Make sure that the program counter isn't "+
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"incremented or decremented if BRA is given "+
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"0x00 as its argument.");
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});
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test("Check that the branching operations properly treat the argument as "+
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"a two's complement number", function() {
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var cpu = new CPU_65816();
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cpu.execute("80f0"); // negative two's complement number 0xf0 = -16
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equals(cpu.r.pc, (0x8003-16), "A branching operation when given a "+
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"negative two's complement number should "+
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"decrement the program counter by the "+
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"proper amount.");
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cpu.execute("8020"); // positive two's complement number.
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equals(cpu.r.pc, (0x8003+0x20), "A branching operation when given a "+
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"positive two's complement number should "+
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"increment the program counter by the "+
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"proper amount.");
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});
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test("Check that BPL works as expected", function() {
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var cpu = new CPU_65816();
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cpu.execute("18fbc230a9fe7f1a10fd");
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equals(cpu.r.a, 0x8000, "Check that branching only occurs while the "+
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"number is a two's complement positive number.");
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});
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test("Check that BMI works as expected", function() {
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var cpu = new CPU_65816();
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cpu.execute("18fbc230a901803a30fd");
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equals(cpu.r.a, 0x7fff, "Check that branching only occurs while the "+
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"number is a two's complement negative number.");
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});
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2011-05-05 21:25:44 +00:00
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}
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function test_sep() {
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module("SEP");
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2011-05-06 00:12:01 +00:00
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test("Test 'SEP #$30' not in emulation mode", function() {
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2011-05-05 21:25:44 +00:00
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var cpu = new CPU_65816();
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2011-05-06 00:12:01 +00:00
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cpu.p.e = 0;
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cpu.execute("e230");
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2011-05-05 21:25:44 +00:00
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equals(cpu.p.m, 1, "'SEP #$30' should set the m status bit of the p "+
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"register to 1");
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equals(cpu.p.x, 1, "'SEP #$30' should set the x status bit of the p "+
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"register to 1");
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2011-05-06 00:12:01 +00:00
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equals(cpu.p.n, 0, "'SEP #$30' should not set the n status bit of the p "+
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"register to 1.");
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equals(cpu.p.c, 0, "'SEP #$30' should not set the c status bit of the p "+
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"register to 1.");
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equals(cpu.p.z, 0, "'SEP #$30' should not set the z status bit of the p "+
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"register to 1.");
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equals(cpu.p.d, 0, "'SEP #$30' should not set the d status bit of the p "+
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"register to 1.");
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equals(cpu.p.v, 0, "'SEP #$30' should not set the v status bit of the p "+
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"register to 1.");
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equals(cpu.p.i, 0, "'SEP #$30' should not set the i status bit of the p "+
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"register to 1.");
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});
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test("Test 'SEP #$cf' not in emulation mode", function() {
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var cpu = new CPU_65816();
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cpu.p.e = 0;
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cpu.execute("e2cf");
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equals(cpu.p.m, 0, "'SEP #$cf' should not set the m status bit of the p "+
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"register to 1");
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equals(cpu.p.x, 0, "'SEP #$cf' should not set the x status bit of the p "+
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"register to 1");
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equals(cpu.p.n, 1, "'SEP #$cf' should set the n status bit of the p "+
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"register to 1.");
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equals(cpu.p.c, 1, "'SEP #$cf' should set the c status bit of the p "+
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"register to 1.");
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equals(cpu.p.z, 1, "'SEP #$cf' should set the z status bit of the p "+
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"register to 1.");
|
|
|
|
equals(cpu.p.d, 1, "'SEP #$cf' should set the d status bit of the p "+
|
|
|
|
"register to 1.");
|
|
|
|
equals(cpu.p.v, 1, "'SEP #$cf' should set the v status bit of the p "+
|
|
|
|
"register to 1.");
|
|
|
|
equals(cpu.p.i, 1, "'SEP #$cf' should set the i status bit of the p "+
|
|
|
|
"register to 1.");
|
2011-05-05 21:25:44 +00:00
|
|
|
});
|
|
|
|
}
|
|
|
|
|
|
|
|
function test_rep() {
|
|
|
|
module("REP");
|
2011-05-06 00:12:01 +00:00
|
|
|
test("Test 'REP #$30' not in emulation mode", function() {
|
2011-05-05 21:25:44 +00:00
|
|
|
var cpu = new CPU_65816();
|
2011-05-06 00:12:01 +00:00
|
|
|
cpu.p.e = 0;
|
|
|
|
// Make sure stuff is cleared by setting all of the bits to 1 initially.
|
|
|
|
cpu.p.n = 1;
|
|
|
|
cpu.p.c = 1;
|
|
|
|
cpu.p.v = 1;
|
|
|
|
cpu.p.i = 1;
|
|
|
|
cpu.p.d = 1;
|
|
|
|
cpu.p.x = 1;
|
2011-05-05 21:25:44 +00:00
|
|
|
cpu.p.m = 1;
|
2011-05-06 00:12:01 +00:00
|
|
|
cpu.p.z = 1;
|
|
|
|
cpu.execute("c230");
|
|
|
|
equals(cpu.p.m, 0, "'REP #$30' should clear the m bit of the p status "+
|
|
|
|
"register");
|
|
|
|
equals(cpu.p.x, 0, "'REP #$30' should clear the x bit of the p status "+
|
|
|
|
"register");
|
|
|
|
equals(cpu.p.d, 1, "'REP #$30' should not clear the d bit of the p "+
|
|
|
|
"status register");
|
|
|
|
equals(cpu.p.i, 1, "'REP #$30' should not clear the i bit of the p "+
|
|
|
|
"status register");
|
|
|
|
equals(cpu.p.c, 1, "'REP #$30' should not clear the c bit of the p "+
|
|
|
|
"status register");
|
|
|
|
equals(cpu.p.z, 1, "'REP #$30' should not clear the z bit of the p "+
|
|
|
|
"status register");
|
|
|
|
equals(cpu.p.v, 1, "'REP #$30' should not clear the v bit of the p "+
|
|
|
|
"status register");
|
|
|
|
equals(cpu.p.n, 1, "'REP #$30' should not clear the n bit of the p "+
|
|
|
|
"status register");
|
|
|
|
});
|
|
|
|
|
|
|
|
test("Test 'REP #$cf' not in emulation mode", function() {
|
|
|
|
var cpu = new CPU_65816();
|
|
|
|
cpu.p.e = 0;
|
|
|
|
// Make sure stuff is cleared by setting all of the bits to 1 initially.
|
|
|
|
cpu.p.n = 1;
|
|
|
|
cpu.p.c = 1;
|
|
|
|
cpu.p.v = 1;
|
|
|
|
cpu.p.i = 1;
|
|
|
|
cpu.p.d = 1;
|
2011-05-05 21:25:44 +00:00
|
|
|
cpu.p.x = 1;
|
2011-05-06 00:12:01 +00:00
|
|
|
cpu.p.m = 1;
|
|
|
|
cpu.p.z = 1;
|
|
|
|
cpu.execute("c2cf");
|
|
|
|
equals(cpu.p.m, 1, "'REP #$cf' should not clear the m bit of the p "+
|
|
|
|
"status register");
|
|
|
|
equals(cpu.p.x, 1, "'REP #$cf' should not clear the x bit of the p "+
|
|
|
|
"status register");
|
|
|
|
equals(cpu.p.z, 0, "'REP #$cf' should clear the z bit of the p status "+
|
|
|
|
"register");
|
|
|
|
equals(cpu.p.n, 0, "'REP #$cf' should clear the n bit of the p status "+
|
|
|
|
"register");
|
|
|
|
equals(cpu.p.d, 0, "'REP #$cf' should clear the d bit of the p status "+
|
|
|
|
"register");
|
|
|
|
equals(cpu.p.v, 0, "'REP #$cf' should clear the v bit of the p status "+
|
|
|
|
"register");
|
|
|
|
equals(cpu.p.i, 0, "'REP #$cf' should clear the i bit of the p status "+
|
|
|
|
"register");
|
|
|
|
equals(cpu.p.c, 0, "'REP #$cf' should clear the c bit of the p status "+
|
|
|
|
"register");
|
2011-05-05 21:25:44 +00:00
|
|
|
});
|
|
|
|
}
|