diff options
Diffstat (limited to 'lib/libc/mips/string/bzero.S')
| -rw-r--r-- | lib/libc/mips/string/bzero.S | 20 |
1 files changed, 1 insertions, 19 deletions
diff --git a/lib/libc/mips/string/bzero.S b/lib/libc/mips/string/bzero.S index 66f29dd..83e54ba 100644 --- a/lib/libc/mips/string/bzero.S +++ b/lib/libc/mips/string/bzero.S @@ -58,27 +58,9 @@ LEAF(bzero) PTR_SUBU a3, zero, a0 # compute # bytes to word align address and a3, a3, SZREG-1 beq a3, zero, 1f # skip if word aligned -#if SZREG == 4 PTR_SUBU a1, a1, a3 # subtract from remaining count - SWHI zero, 0(a0) # clear 1, 2, or 3 bytes to align + REG_SHI zero, 0(a0) # clear 1, 2, or 3 bytes to align PTR_ADDU a0, a0, a3 -#endif -#if SZREG == 8 - PTR_SUBU a1, a1, a3 # subtract from remaining count - PTR_ADDU a0, a0, a3 # align dst to next word - sll a3, a3, 3 # bits to bytes - li a2, -1 # make a mask -#if _BYTE_ORDER == _BIG_ENDIAN - REG_SRLV a2, a2, a3 # we want to keep the MSB bytes -#endif -#if _BYTE_ORDER == _LITTLE_ENDIAN - REG_SLLV a2, a2, a3 # we want to keep the LSB bytes -#endif - nor a2, zero, a2 # complement the mask - REG_L v0, -SZREG(a0) # load the word to partially clear - and v0, v0, a2 # clear the bytes - REG_S v0, -SZREG(a0) # store it back -#endif 1: and v0, a1, SZREG-1 # compute number of words left PTR_SUBU a3, a1, v0 |
