Research PDP7 development

[unix-history] / cp.s

diff --git a/cp.s b/cp.s
new file mode 100644 (file)
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+" cp
+
+   lac 017777
+   tad d1
+   dac name2
+loop:
+   lac 017777 i
+   sad d4
+   sys exit
+   sad d8
+   jmp unbal
+   tad dm8
+   dac 017777 i
+   lac name2
+   tad d4
+   dac name1
+   tad d4
+   dac name2
+   sys open; name1: 0; 0
+   spa
+   jmp error
+   lac o17
+   sys creat; name2: 0
+   spa
+   jmp error
+   dzm nin
+
+1:
+   lac bufp
+   tad nin
+   dac 0f
+   -1
+   tad nin
+   cma
+   tad d1024
+   dac 0f+1
+   lac d2
+   sys read; 0:..;..
+   sna
+   jmp 2f
+   tad nin
+   dac nin
+   sad d1024
+   jmp 2f
+   jmp 1b
+2:
+   lac nin
+   dac 2f
+   lac d3
+   sys write; buf; 2: 0
+   dzm nin
+   lac 2b
+   sad d1024
+   jmp 1b
+   lac d2
+   sys close
+   lac d3
+   sys close
+   jmp loop
+error:
+   lac name1
+   dac 1f
+   lac d1
+   sys write; 1: 0; 4
+   lac d1
+   sys write; mes; 1
+   lac name2
+   dac 1f
+   lac d1
+   sys write; 1: 0; 4
+   lac d1
+   sys write; mes; 2
+   jmp loop
+mes:
+   040000;077012
+unbal:
+   lac name2
+   tad d4
+   dac 1f
+   lac d1
+   sys write; 1: 0; 4
+   lac d1
+   sys write; mes; 2
+   sys exit
+
+d1: 1
+d4: 4
+d8: 8
+o17: 017
+dm8: -8
+d3: 3
+d1024: 1024
+nin: 0
+bufp: buf
+d2: 2
+
+buf:
\ No newline at end of file