Amiga Kickstart 1.3 ROM-Wack: Difference between revisions
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<pre> | <pre> | ||
XXXXXX # Set MP to XXXXXX | XXXXXX # Set MP to XXXXXX | ||
-XX # Subtract XX from MP | |||
+XX # Add XX to MP | |||
:XX # Set default dump length | :XX # Set default dump length | ||
^ # Dump memory at MP | |||
< # Decrement MP by the default dump length, then dump | < # Decrement MP by the default dump length, then dump | ||
> # Dump memory at MP, and increment MP by the default dump length | > # Dump memory at MP, and increment MP by the default dump length | ||
. # Alias for '>' | . # Alias for '>' | ||
? # List the 'long' commands | |||
alter # Edit memory at MP | alter # Edit memory at MP | ||
= # Alias for 'alter' | |||
boot # Reboot the Amiga | boot # Reboot the Amiga | ||
clear # ???? | |||
fill # Fill (all of memory??) with a pattern | |||
find # Find a pattern from MP | |||
go # Start execution from MP | go # Start execution from MP | ||
Revision as of 03:39, 15 August 2010
Amiga Kickstart 1.3 ROM-Wack
The ROM-Wack interface (which you get to by pressing the right mouse button at any Guru Meditation error), is available on the Amiga's serial port at 9600, 8-N-1.
A basic concept is that there is a single memory pointer (called 'MP' in the following documentation) that acts as the base address for almost all commands.
On entry, MP == PC.
XXXXXX # Set MP to XXXXXX -XX # Subtract XX from MP +XX # Add XX to MP :XX # Set default dump length ^ # Dump memory at MP < # Decrement MP by the default dump length, then dump > # Dump memory at MP, and increment MP by the default dump length . # Alias for '>' ? # List the 'long' commands alter # Edit memory at MP = # Alias for 'alter' boot # Reboot the Amiga clear # ???? fill # Fill (all of memory??) with a pattern find # Find a pattern from MP go # Start execution from MP resume # Start from the trapped instruction