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Annotation of researchv10no/cmd/PDP11/crt/csv.s, revision 1.1.1.1

1.1       root        1: / C register save and restore -- version 7/75
                      2: 
                      3: .globl csv
                      4: .globl cret
                      5: 
                      6: csv:
                      7:        mov     r5,r0
                      8:        mov     sp,r5
                      9:        mov     r4,-(sp)
                     10:        mov     r3,-(sp)
                     11:        mov     r2,-(sp)
                     12:        jsr     pc,(r0)         / jsr part is sub $2,sp
                     13: 
                     14: cret:
                     15:        mov     r5,r2
                     16:        mov     -(r2),r4
                     17:        mov     -(r2),r3
                     18:        mov     -(r2),r2
                     19:        mov     r5,sp
                     20:        mov     (sp)+,r5
                     21:        rts     pc

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