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ptrace.s
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1975-05-14
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332b
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29 lines
/ ptrace -- C library
/ result = ptrace(req, pid, addr, data);
ptrace = 26.
indir = 0
.globl _ptrace
.globl cerror, _errno
_ptrace:
mov r5,-(sp)
mov sp,r5
mov 4.(r5),0f+4
mov 6.(r5),0f+0
mov 8.(r5),0f+2
mov 10.(r5),r0
clr _errno
sys indir; 9f
bec 1f
jmp cerror
1:
mov (sp)+,r5
rts pc
.data
9:
sys ptrace; 0: .=.+6