prifak/yuzu
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Unnecessary hex conversion optimizations

Browse Source
This commit is contained in:
Andrew Strelsky
2021-09-19 19:03:24 -04:00
parent 6d7801deb7
commit 3191e87050
1 changed files with 5 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/common/hex_util.h
View File

@@ -15,15 +15,11 @@
namespace Common {
[[nodiscard]] constexpr u8 ToHexNibble(char c) {
if (c >= 65 && c <= 70) {
return static_cast<u8>(c - 55);
}
if (c >= 97 && c <= 102) {
return static_cast<u8>(c - 87);
}
return static_cast<u8>(c - 48);
c ^= '0'; // cut of high nibble for only '0' <= c <= '9'
// if c > 9 keep low nibble and add 9.
// 'A' = 0x41. 0x41 & 7 = 1. 1 + 9 = 0xA
// 'a' = 0x61. 0x61 & 7 = 1. 1 + 9 = 0xA
return c & ~0xf ? (c & 7) + 9 : c;
}
[[nodiscard]] std::vector<u8> HexStringToVector(std::string_view str, bool little_endian);