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#include "pu2.out.c"
#include <stdio.h>
#include <string.h>
/* ANSI colors */
#define CLR_GREEN "\x1b[32m"
#define CLR_RED "\x1b[31m"
#define CLR_YEL "\x1b[33m"
#define CLR_RST "\x1b[0m"
/* test counters */
static int total_tests = 0;
static int passed_tests = 0;
#define static_len(G) (sizeof(G) / sizeof((G)[ 0 ]))
/* helper: load program at pc and set PC (m[7]) */
void load_prog(int pc, int *prog, int len) {
int i;
a = b = 0;
u = 1;
/* clear memory (keeps tests isolated) */
for (i = 0; i < static_len(m); ++i) m[ i ] = 0;
for (i = 0; i < len; ++i) m[ pc + i ] = prog[ i ];
m[ 7 ] = pc;
}
/* unified expect function (increments counters and prints colored output) */
void expect_int(const char *name, int got, int want) {
++total_tests;
if (got == want) {
++passed_tests;
printf("%sPASS%s: %s == %d\n", CLR_GREEN, CLR_RST, name, want);
} else {
printf("%sFAIL%s: %s == %d (want %d)\n", CLR_RED, CLR_RST, name, got, want);
}
}
int outbuf[ 512 ];
void zero_Y(void) {
int ii;
for (ii = 0; ii < (1 << 10); ++ii) Y[ ii ] = 0;
}
void set_outbuf(void) {
memset(outbuf, 0, sizeof outbuf);
O = outbuf;
zero_Y();
}
/* small helper to run a CPU test with a program loaded at 1024 */
void run_cpu_test(int *prog, int len, void (*setup)(void), const char *name, int (*check)(void)) {
load_prog(1024, prog, len);
if (setup) setup();
pu2();
if (check) {
/* check should call expect_int internally or return 1 on success */
check();
}
(void) name; /* kept for future extension */
}
/* example setups and checks for clarity */
int check_a_is_42(void) {
expect_int("a (load imm 42)", a, 42);
return 0;
}
int main(void) {
/* CPU tests */
{
int prog[] = { 1, 42, 0, 0 }; /* [opcode, imm, halt, dummy] */
load_prog(1024, prog, sizeof prog / sizeof prog[ 0 ]);
a = b = v = c = 0;
pu2();
expect_int("a (load imm 42)", a, 42);
}
{
int prog[] = { 2, 0, 0, 0 };
load_prog(1024, prog, 4);
/* place value at memory index 500 and set b=500 */
m[ 500 ] = 99;
b = 500;
a = 0;
pu2();
expect_int("a (a = m[b])", a, 99);
}
{
int prog[] = { 3, 0, 0, 0 };
load_prog(1024, prog, 4);
a = 600;
b = 1234;
pu2();
expect_int("m[600] (m[a]=b)", m[ 600 ], 1234);
}
{
int prog[] = { 4, 0, 0, 0 };
load_prog(1024, prog, 4);
a = 7;
b = 11;
v = 0;
pu2();
expect_int("a (after swap)", a, 11);
expect_int("b (after swap)", b, 7);
}
{
int prog[] = { 5, 0, 0, 0 };
load_prog(1024, prog, 4);
a = 5;
b = 8;
pu2();
expect_int("a (a += b)", a, 13);
}
{
int prog[] = { 6, 0, 0, 0 };
load_prog(1024, prog, 4);
a = 20;
b = 3;
pu2();
expect_int("a (a -= b)", a, 17);
}
{
int prog[] = { 7, 0, 0, 0 };
load_prog(1024, prog, 4);
a = 5;
b = 2;
pu2();
expect_int("a (5 && 2)", a, 1);
load_prog(1024, prog, 4);
a = 0;
b = 3;
pu2();
expect_int("a (0 && 3)", a, 0);
}
{
int prog[] = { 8, 0, 0, 0 };
load_prog(1024, prog, 4);
a = 1;
b = 1;
pu2();
expect_int("a (!a)", a, 0);
load_prog(1024, prog, 4);
a = 0;
b = 1;
pu2();
expect_int("a (!a)", a, 1);
}
// .. TODO: implement test case for ACC instruction ..
{
int prog[] = { 1, 9, 4, 0, 3, 0, 0, 0 };
/* sequence: load imm 9 into a, swap, store b into m[a], halt */
load_prog(1024, prog, sizeof prog / sizeof prog[ 0 ]);
a = 2;
b = 87; /* after load & swap: a=87, b=9 ; then m[87]=9 */
pu2();
expect_int("m[87] (from multi-op)", m[ 87 ], 9);
}
/* Assembler (as2) tests: use outbuf */
{
int *o;
set_outbuf();
as2("hlt");
o = outbuf;
expect_int("hlt:opcode", o[ 0 ], 0);
expect_int("hlt:imm", o[ 1 ], 0);
set_outbuf();
as2("imm 42");
o = outbuf;
expect_int("imm:opcode", o[ 0 ], 1);
expect_int("imm:imm", o[ 1 ], 42);
set_outbuf();
as2("add sub");
o = outbuf;
expect_int("add:opcode", o[ 0 ], 5);
expect_int("add:imm", o[ 1 ], 0);
expect_int("sub:opcode", o[ 2 ], 6);
expect_int("sub:imm", o[ 3 ], 0);
set_outbuf();
as2("{0 hlt} @0");
o = outbuf;
expect_int("macro-hlt:opcode", o[ 0 ], 0);
expect_int("macro-hlt:imm", o[ 1 ], 0);
set_outbuf();
as2("{0 imm 7} @0");
o = outbuf;
expect_int("macro-imm:opcode", o[ 0 ], 1);
expect_int("macro-imm:imm", o[ 1 ], 7);
set_outbuf();
as2("{0 imm 3 add} @0");
o = outbuf;
expect_int("macro-mix:imm-op", o[ 0 ], 1);
expect_int("macro-mix:imm-val", o[ 1 ], 3);
expect_int("macro-mix:add-op", o[ 2 ], 5);
expect_int("macro-mix:add-imm", o[ 3 ], 0);
}
/* Summary */
printf(
"\n%sTest summary%s: %d total, %d passed, %d failed\n",
CLR_YEL,
CLR_RST,
total_tests,
passed_tests,
total_tests - passed_tests);
if (passed_tests == total_tests) {
printf("%sALL TESTS PASSED%s\n", CLR_GREEN, CLR_RST);
return 0;
} else {
printf("%sSOME TESTS FAILED%s\n", CLR_RED, CLR_RST);
return 1;
}
}
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