From 82b0276b9267750d88c2f3f73f997c026dd4a4a2 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Sun, 21 Dec 2025 17:31:48 -0500 Subject: usr: sdk: Add sdk/param.h Signed-off-by: Ian Moffett --- usr/sdk/inc/sdk/param.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 usr/sdk/inc/sdk/param.h diff --git a/usr/sdk/inc/sdk/param.h b/usr/sdk/inc/sdk/param.h new file mode 100644 index 0000000..8c9633c --- /dev/null +++ b/usr/sdk/inc/sdk/param.h @@ -0,0 +1,31 @@ +/* + * Copyright (c) 2025, Ian Moffett. + * Provided under the BSD-3 clause. + */ + +#ifndef _SDK_PARAM_H_ +#define _SDK_PARAM_H_ 1 + +#include + +/* Offset a pointer +/- 'n' */ +#define PTR_OFFSET(P, OFF) (void *)((UQUAD)(P) + (OFF)) +#define PTR_NOFFSET(P, OFF) (void *)((UQUAD)(P) - (OFF)) + +/* Bit related macros */ +#define ISSET(v, f) ((v) & (f)) +#define BIT(n) (1ULL << (n)) +#define MASK(n) ((1ULL << n) - 1) + +/* Align up/down a value */ +#define ALIGN_DOWN(value, align) ((value) & ~((align)-1)) +#define ALIGN_UP(value, align) (((value) + (align)-1) & ~((align)-1)) + +/* Bitmap helper macros */ +#define SETBIT(a, b) ((a)[(b) >> 3] |= BIT(b % 8)) +#define CLRBIT(a, b) ((a)[(b) >> 3] &= ~BIT(b % 8)) +#define TESTBIT(a, b) (ISSET((a)[(b) >> 3], BIT(b % 8))) + +#define NELEM(a) (sizeof(a) / sizeof(a[0])) + +#endif /* !_SDK_PARAM_H_ */ -- cgit v1.2.3