Graphics Plus/Graphics Plus.iso/amiga/convrtrs/gfxrippr.lha/gfxripper/README

Text File | 1993-06-07 | 1.8 KB | 44 lines

7th June 1993

CAVEAT:  This is an OLD program written by euro-hackers, and bangs the
hardware.  It works OK on my A1000 under 1.3 and 2.04 with the old chipset.
If you have ECS/AGA, or WB3.0 or an accelerator - best of luck! I have no
idea whether it'll work or not.

Ripbootblock is a bootblock for installing on a blank, formatted disk
Use bootback to do this, viz:

bootback ripbootblock df0:

If you load up a program, then reset with the ripbootblock disk in
df0:, the contents of chip RAM will be copied to fast RAM and stored safely.
As it stands, the bootblock copies 512K chip RAM to $500000 - you may wish
to modify this to suit your own system - see the .asm source.

Now reset into your normal workbench and start up mon.  You need to copy the
saved chip RAM data back into chip RAM so that the ripper can access it.
Pressing HLP within mon will list the available commands, and the sequence
I generally use to rip GFX is as follows:

-> & 39000 40000     ;allocate 256K chip RAM from $39000 upwards
-> t 500000 540000 39000   ;copy 256K saved data to $39000

Now start the GFX ripper and start searching chip RAM - obviously 39000-
79000 is the target area.  Once finished, go back into mon and

-> t 540000 580000 39000  ;copy the other 256K of data over for ripping

and repeat the ripping.


Within the ripper itself, pressing both mousebuttons over the smily face
at the RHS saves the onscreen image.  The gadgets are all pretty
self-explanatory, except for the "modulo", which refers to the blitter
modulo, and can be played with to turn interleaved bitmaps from garbage
into pretty pictures :-)  (No, I don't really know what it does, either)
The executable docfile, although intensely irritating, explains the
program fairly well.

Bill Bennett

Internet:  [e-mail]  (until XMAS '93 only)