diff options
Diffstat (limited to 'sysdeps/mips/memset.S')
| -rw-r--r-- | sysdeps/mips/memset.S | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/sysdeps/mips/memset.S b/sysdeps/mips/memset.S index b372d292f2..f120123544 100644 --- a/sysdeps/mips/memset.S +++ b/sysdeps/mips/memset.S @@ -43,35 +43,42 @@ ENTRY (memset) sll t0, a1, 16 or a1, t0 # a1 is now pattern in full word -L(ueven): subu t0, zero, a0 # Unaligned address? +L(ueven): + subu t0, zero, a0 # Unaligned address? andi t0, 0x3 beq t0, zero, L(chkw) subu a2, t0 SWHI a1, 0(a0) # Yes, handle first unaligned part addu a0, t0 # Now both a0 and a2 are updated -L(chkw): andi t0, a2, 0x7 # Enough left for one loop iteration? +L(chkw): + andi t0, a2, 0x7 # Enough left for one loop iteration? beq t0, a2, L(chkl) subu a3, a2, t0 addu a3, a0 # a3 is last loop address +1 move a2, t0 # a2 is now # of bytes left after loop -L(loopw): addiu a0, 8 # Handle 2 words pr. iteration +L(loopw): + addiu a0, 8 # Handle 2 words pr. iteration sw a1, -8(a0) bne a0, a3, L(loopw) sw a1, -4(a0) -L(chkl): andi t0, a2, 0x4 # Check if there is at least a full +L(chkl): + andi t0, a2, 0x4 # Check if there is at least a full beq t0, zero, L(last8) # word remaining after the loop subu a2, t0 sw a1, 0(a0) # Yes... addiu a0, 4 -L(last8): blez a2, L(exit) # Handle last 8 bytes (if cnt>0) +L(last8): + blez a2, L(exit) # Handle last 8 bytes (if cnt>0) addu a3, a2, a0 # a3 is last address +1 -L(lst8l): addiu a0, 1 +L(lst8l): + addiu a0, 1 bne a0, a3, L(lst8l) sb a1, -1(a0) -L(exit): j ra # Bye, bye +L(exit): + j ra # Bye, bye nop .set reorder |