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- TEXT strcat(SB),$0
- MOVL $0, AX
- MOVQ $-1, CX
- CLD
- /*
- * find length of second string
- */
- MOVQ p2+8(FP), DI
- REPN; SCASB
- MOVQ DI, BX
- SUBQ p2+8(FP), BX
- /*
- * find end of first string
- */
- MOVQ RARG, DI
- REPN; SCASB
- /*
- * copy the memory
- */
- SUBQ $1, DI
- MOVQ p2+8(FP), SI
- /*
- * copy whole longs, if aligned
- */
- MOVQ DI, CX
- ORQ SI, CX
- ANDL $3, CX
- JNE c3
- MOVQ BX, CX
- SHRQ $2, CX
- REP; MOVSL
- /*
- * copy the rest, by bytes
- */
- ANDL $3, BX
- c3:
- MOVQ BX, CX
- REP; MOVSB
- MOVQ RARG, AX
- RET
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