diff options
| author | Tharo <17233964+Thar0@users.noreply.github.com> | 2021-12-01 00:08:57 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-11-30 19:08:57 -0500 |
| commit | f1d183d6feac23275306bfa2dee939d123702765 (patch) | |
| tree | c20585c17dea94561f7c4cfcff572e39bc033a3e /src/libultra_code_O2/__osContAddressCrc.c | |
| parent | eabc91881761a82856cca3fab9a4749c60ea1fe7 (diff) | |
libultra files and directories restructure (#1038)
* Restructure files, begin header restructure
* Format
* us2dex
* Fix parallel spelling
Co-authored-by: JoshDuMan <40190173+JoshDuMan@users.noreply.github.com>
* Use OS_K0_TO_PHYSICAL in place of VIRTUAL_TO_PHYSICAL in osAiSetNextBuffer
* Uppercase hex, exception vector address defines
* Interrupt flags 1
Co-authored-by: Dragorn421 <Dragorn421@users.noreply.github.com>
* Interrupt flags 2
Co-authored-by: Dragorn421 <Dragorn421@users.noreply.github.com>
Co-authored-by: JoshDuMan <40190173+JoshDuMan@users.noreply.github.com>
Co-authored-by: Dragorn421 <Dragorn421@users.noreply.github.com>
Diffstat (limited to 'src/libultra_code_O2/__osContAddressCrc.c')
| -rw-r--r-- | src/libultra_code_O2/__osContAddressCrc.c | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/src/libultra_code_O2/__osContAddressCrc.c b/src/libultra_code_O2/__osContAddressCrc.c deleted file mode 100644 index c1af0b12c..000000000 --- a/src/libultra_code_O2/__osContAddressCrc.c +++ /dev/null @@ -1,62 +0,0 @@ -#include "global.h" - -// Valid addr up to 0x7FF -// It's the address of a block of 0x20 bytes in the mempak -// So that means the whole mempak has a 16-bit address space -u8 __osContAddressCrc(u16 addr) { - u32 addr32 = addr; - u32 ret = 0; - u32 bit; - s32 i; - - for (bit = 0x400; bit; bit >>= 1) { - ret <<= 1; - if (addr32 & bit) { - if (ret & 0x20) { - ret ^= 0x14; - } else { - ++ret; - } - } else if (ret & 0x20) { - ret ^= 0x15; - } - } - for (i = 0; i < 5; ++i) { - ret <<= 1; - if (ret & 0x20) { - ret ^= 0x15; - } - } - - return ret & 0x1F; -} - -u8 __osContDataCrc(u8* data) { - s32 ret = 0; - u32 bit; - u32 byte; - - for (byte = 0x20; byte; --byte, ++data) { - for (bit = 0x80; bit; bit >>= 1) { - ret <<= 1; - if ((*data & bit) != 0) { - if ((ret & 0x100) != 0) { - ret ^= 0x84; - } else { - ++ret; - } - } else if (ret & 0x100) { - ret ^= 0x85; - } - } - } - do { - ret <<= 1; - if (ret & 0x100) { - ret ^= 0x85; - } - ++byte; - } while (byte < 8U); - - return ret; -} |
