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| author | Ian Moffett <ian@osmora.org> | 2023-12-19 22:11:08 -0500 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2023-12-19 22:11:08 -0500 |
| commit | ea0290d541d985f84e77f1e8f3b8fadfb5fa9fd9 (patch) | |
| tree | 77b388fb325598b3d59956b1f9c9124cc926869b | |
| parent | e07242e3a1589742772732c4e739f78bdab20a00 (diff) | |
kernel: cdefs: Add extra helpers
Signed-off-by: Ian Moffett <ian@osmora.org>
| -rw-r--r-- | sys/include/sys/cdefs.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/include/sys/cdefs.h b/sys/include/sys/cdefs.h index de353be..dc47b77 100644 --- a/sys/include/sys/cdefs.h +++ b/sys/include/sys/cdefs.h @@ -115,6 +115,15 @@ /* Computes 2^x i.e 2 to the power of 'x' */ #define __POW2(x) (1ULL << x) +/* Combine two 8-bit values into a 16-bit value */ +#define __COMBINE8(HI, LO) ((uint16_t)((uint8_t)HI << 8) | LO) + +/* Combine two 16-bit values into a 32-bit value */ +#define __COMBINE16(HI, LO) ((uint32_t)((uint16_t)HI << 16) | LO) + +/* Combine two 32-bit values into a 64-bit value */ +#define __COMBINE32(HI, LO) ((uint64_t)((uint16_t)HI << 32) | LO) + /* * Used to give metadata to * a specific module. Example |