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Added more test cases and rounding modes to fma test generator

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This commit is contained in:
David Harris 2022-03-08 23:29:29 +00:00
parent 8fa6a85af2
commit 00908132e6
1 changed files with 9 additions and 2 deletions
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11
pipelined/src/fma/fma16_testgen.c
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@ -38,7 +38,7 @@ float convFloat(float16_t f16) {
void genCase(FILE *fptr, float16_t x, float16_t y, float16_t z, int mul, int add, int negp, int negz, int zeroAllowed, int infAllowed, int nanAllowed) {
float16_t result;
int op;
char calc[80];
char calc[80], flags[80];
float32_t x32, y32, z32, r32;
float xf, yf, zf, rf;
float16_t smallest;
@ -48,8 +48,15 @@ void genCase(FILE *fptr, float16_t x, float16_t y, float16_t z, int mul, int add
if (negp) x.v ^= 0x8000; // flip sign of x to negate p
if (negz) z.v ^= 0x8000; // flip sign of z to negate z
op = mul<<3 | add<<2 | negp<<1 | negz;
softfloat_exceptionFlags = 0; // clear exceptions
result = f16_mulAdd(x, y, z);
sprintf(flags, "NV: %d OF: %d UF: %d NX: %d",
(softfloat_exceptionFlags >> 4) % 2,
(softfloat_exceptionFlags >> 2) % 2,
(softfloat_exceptionFlags >> 1) % 2,
(softfloat_exceptionFlags) % 2);
// convert to floats for printing
xf = convFloat(x);
yf = convFloat(y);
@ -68,7 +75,7 @@ void genCase(FILE *fptr, float16_t x, float16_t y, float16_t z, int mul, int add
if (resultmag.v == 0x0000 && !zeroAllowed) fprintf(fptr, "// skip zero: ");
if ((resultmag.v == 0x7C00 || resultmag.v == 0x7BFF) && !infAllowed) fprintf(fptr, "// Skip inf: ");
if (resultmag.v > 0x7C00 && !nanAllowed) fprintf(fptr, "// Skip NaN: ");
fprintf(fptr, "%04x_%04x_%04x_%02x_%04x // %s\n", x.v, y.v, z.v, op, result.v, calc);
fprintf(fptr, "%04x_%04x_%04x_%02x_%04x_%02x // %s %s\n", x.v, y.v, z.v, op, result.v, softfloat_exceptionFlags, calc, flags);
}
void prepTests(uint16_t *e, uint16_t *f, char *testName, char *desc, float16_t *cases,