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Fixed signs printed for fma16 testgen

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This commit is contained in:
David Harris 2025-04-14 15:01:48 -07:00
parent 64ff263681
commit d57c789c15
1 changed files with 9 additions and 3 deletions
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12
examples/exercises/fma16/fma16_testgen.c
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@ -42,16 +42,22 @@ void genCase(FILE *fptr, float16_t x, float16_t y, float16_t z, int mul, int add
char calc[80], flags[80];
float32_t x32, y32, z32, r32;
float xf, yf, zf, rf;
float16_t x2, z2;
float16_t smallest;
if (!mul) y.v = 0x3C00; // force y to 1 to avoid multiply
if (!add) z.v = 0x0000; // force z to 0 to avoid 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
// Negated versions of x and z are used in the mulAdd call where necessary
x2 = x;
z2 = z;
if (negp) x2.v ^= 0x8000; // flip sign of x to negate p
if (negz) z2.v ^= 0x8000; // flip sign of z to negate z
op = roundingMode << 4 | mul<<3 | add<<2 | negp<<1 | negz;
// printf("op = %02x rm %d mul %d add %d negp %d negz %d\n", op, roundingMode, mul, add, negp, negz);
softfloat_exceptionFlags = 0; // clear exceptions
result = f16_mulAdd(x, y, z); // call SoftFloat to compute expected result
result = f16_mulAdd(x2, y, z2); // call SoftFloat to compute expected result
// Extract expected flags from SoftFloat
sprintf(flags, "NV: %d OF: %d UF: %d NX: %d",