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77 lines
1.9 KiB
Plaintext
77 lines
1.9 KiB
Plaintext
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*** sim6811.1~ Wed Sep 6 10:58:03 1995
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--- sim6811.1 Wed Sep 6 10:59:11 1995
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***************
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*** 0 ****
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--- 1,71 ----
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+ .Dd June 5, 1993
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+ .Dt sim6811 1
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+ .Os BSD 4
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+ .Sh NAME
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+ .Nm sim6811
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+ .Nd very simple and crude simulator for the 6811
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+ .Sh SYNOPSIS
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+ .Nm sim6811
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+ .Ar s19-file
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+ .Sh DESCRIPTION
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+ .Ar s19-file
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+ is a Motorola s19 assembler output file
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+
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+ some instructions aren't there yet (notably converning multiplication
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+ and interrupts) and the interface only allows stepping. this should
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+ be easily rectifiable, however, and the simple structure should make
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+ grafting on a graphical interface quite simple.
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+
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+ to run the simulator, just provide the name of an object file on the
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+ command line. the object file must be in s19 format, and must include
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+ a reset vector in order to tell the simulator where to start
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+ execution. simulation proceeds one instruction at a time, with a
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+ register and page zero memory dump being performed at each step.
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+
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+ several simple commands are supported, but additional commands to
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+ modify memory, cause interrupts and simulate the special registers
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+ would all be nice, and relatively easy to add.
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+
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+ .Sh COMMANDS
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+
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+ The current
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+ .Nm sim6811
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+ command set includes
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+
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+ .Bl -tag -width Ds
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+
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+ .Nm l [address [n]]
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+ .br
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+ .ti 8
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+ disassemble n instructions starting at address
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+
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+ .Nm g [address [n]]
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+ .br
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+ .ti 8
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+ go starting at address for n steps.
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+
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+ .Nm s [n]
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+ .br
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+ .ti 8
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+ step n times (n=1 default)
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+
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+ .Nm b [address[cnt]]
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+ .br
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+ .ti 8
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+ set a breakpoint, which will stop cnt times
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+
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+ .Nm t [address[cnt]]
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+ .br
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+ .ti 8
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+ set a temporary breakpoint.
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+
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+ .Nm <empty-line>
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+ .br
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+ .ti 8
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+ step once
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+
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+ .Sh HISTORY
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+ .Nm sim6811
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+ was written by Ted Dunning <ted@nmsu.edu>. This manual page was created out of
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+ various C-sources by Eric L. Hernes <erich@rrnet.com>. Some example sources
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+ and s19 files can be found in ftp://crl.nmsu.edu/pub/non-lexical/6811
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