a7 is updated with Phil's stdin reading patch. I've written a few more

utilities and modified the v1 man pages for them. Fixed a typo (missing
line) in src/cmd/as.s.

src/other/wktmv.s

@@ -0,0 +1,41 @@
+" Warren's version of mv. mv file1 file2
+
+main:
+
+   lac 017777 i		" Load the pointer pointer in 017777
+   sad d8		" to see if we have two
+     jmp nofiles	" No arguments, stop now
+   lac 017777           " Move five words past the argument word count
+   tad d5               " so that AC points at the first argument
+   dac name1		" and save it
+   tad d4		" Then do the same for the second name
+   dac name2
+
+   sys rename; name1:0; name2:0		" Rename the file
+   spa
+     jmp badfile	" Print out an error on failure
+   sys exit
+
+
+nofiles:
+   lac d8
+   sys write; 1f; 5             " Write "No files\n" to stderr
+   sys exit                     " and exit
+
+1: <tw>; <o 040;  <fi>;<le>;<s 012
+
+badfile:
+   lac name1                    " Get the pointer to the filename
+   dac 1f                       " Store it in 1f below
+   lac d8                       " Load fd 8 which is stderr
+   sys write; 1:0; 4            " Write the four words of the filename
+   lac d8
+   sys write; 1f; 2             " and then write " ?\n"
+   sys exit
+
+1: 040;077012                   " String literal: " ?\n"
+
+d1: 1
+d4: 4
+d5: 5
+d8: 8