HSPIM HELP

File:		hspim.help
Author:		course (send problems to walton@das)
Version:	1

The following assumes the CS 51 home directory is
named ~lib51.

~lib51/bin/hspim	Invoke the CS 51 Harvard SPIM
			interpreter.
control-D		Exit the interpreter.

reinit		Reinitialize HSPIM completely.
load "file.asm"	Load an assembly file into memory.
run		Run the current program (as
		defined by the `main' function).

s <N>		Step the program for N instructions.
		<N> defaults to 1.
		Type extra carriage returns to step
		in multiples of N instructions.
c		Continue program execution without
		stepping until the end of program or
		next breakpoint.  Type extra carriage
		returns to continue repeatedly.

p g		Print the general registers.
p s		Print the global symbol table.
p i		Print instruction counters.
p $N 		Print register N (e.g. $t0, $pc, $lo).
p <A>		Print contents of memory at address <A>.
		<A> must be a global symbol or an
		integer.  Type extra carriage returns
		to see subsequent words.

br <A>		Set a breakpoint at address <A>.
		<A> must be a global symbol or an
		integer.
del <A>		Delete all breakpoints at address <A>.
list 		List all breakpoints.

. <statement>	Process the assembly language statement.
		If it loads into the .text area, single
		step through the instructions loaded.

dribble "file"  Output every character seen on the
		screen to "file".  The output is
		appended to the file.
dribble		Turn dribble off.

?		Print the help message.


~lib51/bin/hspim -test file.out < file.in
		Run hspim with file.in as input and
		silently write the output in file.out
		as if it had been produced by dribble.
		However unlike dribble, file.out is
		truncated before output begins.
~lib51/bin/hspim -file file.asm
		Run hspim, and execute:
			load "file.asm"
			run
		silently.  Can be combined with -test
		above.