:back to tech:

     here are some really handy debug scripts, they've all been tested and work great. if you're not familiar with the debug command, you don't know what you're missing. also, if you're not familiar with the debug command, i'd like to warn you that the majority of the scripts on this page will cause data loss when they are run so exercise extreme caution. eventually if/when i get around to it i plan on including some debug tutorials for those who are interested.

     in the scripts below, the red type indicates what you will type, the white is what the system will respond with, and of course <enter> means 'hit enter'. got it? also for those who will be doing this on systems with multiple hard drives, keep in mind that in the lines containing the DX register (MOV DX, 80), the 80 indicates HD0 which is what you'll use if you're doing this on the primary master drive.

:: for reference: 80=HD0, 81=HD1, 82=HD2, 83=HD3 ::

     another note: when you use the port identification script, the output will be flip-flopped. for instance, and output of F8 03 would indicate that com1 is responding whereas normally you'd recognize com1 as 03F8. the same applies for com2, com3, and com4 ... F8 02, E8 03, and E8 02 respectively.

one final note: the majority of these scripts will not take effect until you restart the system.