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TEXT memset(SB), $0 MOVL n+8(FP), R0 BLE return MOVL s1+0(FP), A1 CLRL R1 MOVB c+7(FP), R1 BEQ l1 /* * create 4 replicated copies * of the byte in R1 */ MOVL R1, R2 ASLL $8, R2 ORL R2, R

TEXT memset(SB), $0 MOVL n+8(FP), R0 BLE return MOVL s1+0(FP), A1 CLRL R1 MOVB c+7(FP), R1 BEQ l1 /* * create 4 replicated copies * of the byte in R1 */ MOVL R1, R2 ASLL $8, R2 ORL R2, R

TEXT _mulv(SB), $0 MOVW u1+8(FP), R8 MOVW u2+16(FP), R13 MOVW R13, R16 /* save low parts for later */ MOVW R8, R12 /* * unsigned 32x32 => 64 multiply */ CMP R13, R8 BLE mul1 MOVW R12, R

TEXT memset(SB), $0 MOVL n+8(FP), R0 BLE return MOVL s1+0(FP), A1 CLRL R1 MOVB c+7(FP), R1 BEQ l1 /* * create 4 replicated copies * of the byte in R1 */ MOVL R1, R2 ASLL $8, R2 ORL R2, R

/ cat -- concatinate files mov (sp)+,r5 tst (sp)+ mov $obuf,r2 cmp r5,$1 beq 3f loop: dec r5 ble done mov (sp)+,r0 cmpb (r0),$'- bne 2f clr fin br 3f 2: mov r0,0f sys open; 0:..; 0 be

/ cat -- concatinate files mov (sp)+,r5 tst (sp)+ mov $obuf,r2 cmp r5,$1 beq 3f loop: dec r5 ble done mov (sp)+,r0 cmpb (r0),$'- bne 2f clr fin br 3f 2: mov r0,0f sys open; 0:..; 0 be

/ kill process mov (sp)+,r4 tst (sp)+ loop: dec r4 ble done mov (sp)+,r5 clr r3 cmpb (r5),$'- bne 1f inc r5 clr signo 1: movb (r5)+,r0 beq 1f sub $'0,r0 cmp r0,$9 bhi error mul $10.,

/ ar -- archive/library mov (sp)+,r0 sub $2,r0 ble userr tst (sp)+ mov (sp)+,r1 clr r2 1: tstb (r1) beq 1f cmpb (r1),$'v bne 2f inc r1 incb vflg br 1b 2: tst r2 bne userr movb (r1)+,r

/ rmdir -- unlink directory mov (sp)+,r5 tst (sp)+ loop: dec r5 ble done mov (sp)+,r1 mov $name,r2 clr r0 1: inc r0 movb (r1)+,(r2)+ bne 1b dec r2 dec r0 mov r0,size cmp r2,$name beq

/ qsort interfact to c / qsort(from, to) .globl _qsort _qsort: mov 2(sp),r1 mov 4(sp),r2 jsr pc,qsort rts pc qsort: mov r2,r3 sub r1,r3 cmp r3,$4 ble done asr r3 bic $3,r3 add r1,r3 mo