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The SID Command CP/M 3 User's Guide
The SID Command
Syntax: SID {pgm-filespec} {,sym-filespec}
Explanation: The SID (Symbolic Instruction Debugger) allows you to monitor and
test programs developed for the 8080 microprocessor. SID supports
real-time breakpoints, fully monitored execution, symbolic disassembly,
assembly, and memory display and fill functions. Utility programs are
supplied with CP/M 3 that can be dynamically loaded with SID to
provide traceback and histogram facilities.
SID commands display memory and CPU registers and direct the breakpoint
operations during the debugging session.
Without a file specification SID loads into memory without a test program.
Use this form to examine memory or to write and test simple
programs using the A command. You must not use the SID commands
G, T, or U, described later, until you have first loaded a test program.
A SID command line with a pgm-filespec loads both SID and the test
program into memory. If the filetype is omitted from the filespec, COM
is assumed. SID optionally loads in a symbol table file specified by symfilespec.
The sym-filespec needs no filetype because SID looks for a file
with filetype SYM. Use the C, G, T, or U command to begin execution
of the test program under supervision of SID.
Use CTRL-S to halt the screen display. CTRL-Q restarts the display.
Abort lengthy displays by typing any keyboard character. Use CTRL-C
to exit from SID.
SID can address absolute memory locations through symbolic expressions.
A symbolic expression evaluates to either an address or a data
item.
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