diff options
Diffstat (limited to 'arch/alpha/lib/memset.S')
| -rw-r--r-- | arch/alpha/lib/memset.S | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/arch/alpha/lib/memset.S b/arch/alpha/lib/memset.S index dc2075e1f..f39197dee 100644 --- a/arch/alpha/lib/memset.S +++ b/arch/alpha/lib/memset.S @@ -18,6 +18,7 @@ .set noreorder .text .globl __memset + .globl __memsetw .globl __constant_c_memset .ent __memset .align 5 @@ -25,8 +26,8 @@ __memset: .frame $30,0,$26,0 .prologue 0 - zapnot $17,1,$17 /* E0 */ - sll $17,8,$1 /* E1 (p-c latency, next cycle) */ + and $17,255,$1 /* E1 */ + insbl $17,1,$17 /* .. E0 */ bis $17,$1,$17 /* E0 (p-c latency, next cycle) */ sll $17,16,$1 /* E1 (p-c latency, next cycle) */ @@ -52,9 +53,9 @@ __constant_c_memset: insql $17,$16,$2 /* E0 */ subq $3,8,$3 /* .. E1 */ - addq $18,$3,$18 /* E0 $18 is new count ($3 is negative) */ + addq $18,$3,$18 /* E0 $18 is new count ($3 is negative) */ mskql $4,$16,$4 /* .. E1 (and possible load stall) */ - subq $16,$3,$16 /* E0 $16 is new aligned destination */ + subq $16,$3,$16 /* E0 $16 is new aligned destination */ bis $2,$4,$1 /* .. E1 */ bis $31,$31,$31 /* E0 */ @@ -103,6 +104,22 @@ end: ret $31,($26),1 /* E1 */ .end __memset + .align 5 + .ent __memsetw +__memsetw: + .prologue 0 + + inswl $17,0,$1 /* E0 */ + inswl $17,2,$2 /* E0 */ + inswl $17,4,$3 /* E0 */ + or $1,$2,$1 /* .. E1 */ + inswl $17,6,$4 /* E0 */ + or $1,$3,$1 /* .. E1 */ + or $1,$4,$17 /* E0 */ + br __constant_c_memset /* .. E1 */ + + .end __memsetw + #ifdef __ELF__ .weak memset; memset = __memset #else |