mirror of
https://github.com/c64scene-ar/llvm-6502.git
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69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
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#include <stdio.h>
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typedef unsigned long long int uint64_t;
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typedef long long int int64_t;
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const char *boolstring(int val) {
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return val ? "true" : "false";
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}
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int i64_eq(int64_t a, int64_t b) {
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return (a == b);
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}
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int i64_neq(int64_t a, int64_t b) {
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return (a != b);
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}
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int64_t i64_eq_select(int64_t a, int64_t b, int64_t c, int64_t d) {
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return ((a == b) ? c : d);
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}
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int64_t i64_neq_select(int64_t a, int64_t b, int64_t c, int64_t d) {
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return ((a != b) ? c : d);
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}
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struct pred_s {
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const char *name;
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int (*predfunc)(int64_t, int64_t);
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int64_t (*selfunc)(int64_t, int64_t, int64_t, int64_t);
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};
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struct pred_s preds[] = {
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{ "eq", i64_eq, i64_eq_select },
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{ "neq", i64_neq, i64_neq_select }
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};
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int main(void) {
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int i;
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int64_t a = 1234567890000LL;
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int64_t b = 2345678901234LL;
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int64_t c = 1234567890001LL;
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int64_t d = 10001LL;
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int64_t e = 10000LL;
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printf("a = %16lld (0x%016llx)\n", a, a);
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printf("b = %16lld (0x%016llx)\n", b, b);
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printf("c = %16lld (0x%016llx)\n", c, c);
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printf("d = %16lld (0x%016llx)\n", d, d);
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printf("e = %16lld (0x%016llx)\n", e, e);
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printf("----------------------------------------\n");
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for (i = 0; i < sizeof(preds)/sizeof(preds[0]); ++i) {
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printf("a %s a = %s\n", preds[i].name, boolstring((*preds[i].predfunc)(a, a)));
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printf("a %s b = %s\n", preds[i].name, boolstring((*preds[i].predfunc)(a, b)));
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printf("a %s c = %s\n", preds[i].name, boolstring((*preds[i].predfunc)(a, c)));
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printf("d %s e = %s\n", preds[i].name, boolstring((*preds[i].predfunc)(d, e)));
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printf("e %s e = %s\n", preds[i].name, boolstring((*preds[i].predfunc)(e, e)));
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printf("a %s a ? c : d = %lld\n", preds[i].name, (*preds[i].selfunc)(a, a, c, d));
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printf("a %s a ? c : d == c (%s)\n", preds[i].name, boolstring((*preds[i].selfunc)(a, a, c, d) == c));
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printf("a %s b ? c : d = %lld\n", preds[i].name, (*preds[i].selfunc)(a, b, c, d));
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printf("a %s b ? c : d == d (%s)\n", preds[i].name, boolstring((*preds[i].selfunc)(a, b, c, d) == d));
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printf("----------------------------------------\n");
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}
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return 0;
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}
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