From ea0290d541d985f84e77f1e8f3b8fadfb5fa9fd9 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Tue, 19 Dec 2023 22:11:08 -0500 Subject: kernel: cdefs: Add extra helpers Signed-off-by: Ian Moffett --- sys/include/sys/cdefs.h | 9 +++++++++ 1 file changed, 9 insertions(+) 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 -- cgit v1.2.3