The-Homebrew-Cloud/Lime3DS
2
0
Fork 0
mirror of https://github.com/Lime3DS/Lime3DS.git synced 2024-11-27 12:04:16 +01:00
Code Issues Packages Projects Releases Wiki Activity

video_core: fix infinity and NaN conversions

Browse Source
This commit is contained in:
Tillmann Karras 2017-12-14 19:49:27 +00:00
parent 4b8a7eb1ca
commit fd3ec6be30
1 changed files with 11 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/video_core/pica_types.h
View File

@ -35,13 +35,19 @@ public:
const int width = M + E + 1;
const int bias = 128 - (1 << (E - 1));
const int exponent = (hex >> M) & ((1 << E) - 1);
int exponent = (hex >> M) & ((1 << E) - 1);
const unsigned mantissa = hex & ((1 << M) - 1);
const unsigned sign = (hex >> (E + M)) << 31;
if (hex & ((1 << (width - 1)) - 1))
hex = ((hex >> (E + M)) << 31) | (mantissa << (23 - M)) | ((exponent + bias) << 23);
else
hex = ((hex >> (E + M)) << 31);
if (hex & ((1 << (width - 1)) - 1)) {
if (exponent == (1 << E) - 1)
exponent = 255;
else
exponent += bias;
hex = sign | (mantissa << (23 - M)) | (exponent << 23);
} else {
hex = sign;
}
std::memcpy(&res.value, &hex, sizeof(float));