diff options
author | oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2008-05-07 14:25:34 +0000 |
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committer | oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2008-05-07 14:25:34 +0000 |
commit | ee793f0fcbd2d7e4ad08e61d242ba178e8909b45 (patch) | |
tree | 772607aa303278b216305ccf40fc88d76511edf2 /src/helper/binarybuffer.h | |
parent | a197e759ffcb047a383adf686966f68934fef206 (diff) |
This matters for embedded devices, but is probably not observably better for PC hosted OpenOCD.
git-svn-id: svn://svn.berlios.de/openocd/trunk@647 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Diffstat (limited to 'src/helper/binarybuffer.h')
-rw-r--r-- | src/helper/binarybuffer.h | 43 |
1 files changed, 41 insertions, 2 deletions
diff --git a/src/helper/binarybuffer.h b/src/helper/binarybuffer.h index 34a167d4..47ae193e 100644 --- a/src/helper/binarybuffer.h +++ b/src/helper/binarybuffer.h @@ -26,8 +26,47 @@ * flip_u32 inverses the bit order inside a 32-bit word (31..0 -> 0..31) */ -extern int buf_set_u32(u8* buffer, unsigned int first, unsigned int num, u32 value); -extern u32 buf_get_u32(u8* buffer, unsigned int first, unsigned int num); +/* inlining this will help show what fn that is taking time during profiling. */ +static __inline void buf_set_u32(u8* buffer, unsigned int first, unsigned int num, u32 value) +{ + if ((num==32)&&(first==0)) + { + buffer[3]=(value>>24)&0xff; + buffer[2]=(value>>16)&0xff; + buffer[1]=(value>>8)&0xff; + buffer[0]=(value>>0)&0xff; + } else + { + unsigned int i; + + for (i=first; i<first+num; i++) + { + if (((value >> (i-first))&1) == 1) + buffer[i/8] |= 1 << (i%8); + else + buffer[i/8] &= ~(1 << (i%8)); + } + } +} +static __inline u32 buf_get_u32(u8* buffer, unsigned int first, unsigned int num) +{ + if ((num==32)&&(first==0)) + { + return (((u32)buffer[3])<<24)|(((u32)buffer[2])<<16)|(((u32)buffer[1])<<8)|(((u32)buffer[0])<<0); + } else + { + u32 result = 0; + unsigned int i; + + for (i=first; i<first+num; i++) + { + if (((buffer[i/8]>>(i%8))&1) == 1) + result |= 1 << (i-first); + } + + return result; + } +} extern u32 flip_u32(u32 value, unsigned int num); |