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VIRGEN1.ARK
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2006-10-19
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Virtuoso Geneve
Author: Wayne L. Stith
Shareware ($10.00)
This file is a brief description of Virtuose Geneve (VIR-GEN), a new
shareware program being released today, June 26, 1991.
The program provides a useful tool for programmers and anyone curious about
the workings of 9900 assembly code on the Geneve.
VIR-GEN sets up a 64K virtual machine in the Geneve's CPU memory and allows
the user to manipulate the machine at will. The TI machine is copied into
the new address space or omitted at the user's discretion.
CPU or VDP memory is displayed simultaneously in hex and ASCII. The screen
also shows the contents of the virtual machine map, workspace registers,
status register, VDP registers, etc. The bottom of the screen tracks the
disassembly of instructions.
So far, this is nothing very new. What is new is the fact that there is
included an on-board assembler module which will assemble source code from
disk directly into memory for testing. (VIR-GEN does not occupy any portion
of the virtual machine, so you may manipulate it at will). You also have
the option of saving any portion of memory to disk in memory image format.
You may delete code and move the remaining code down in memory, or insert
zeros within code. You may disassemble any part of CPU memory to disk.
You may load a memory image program and simulate its execution in either
step mode or continuous mode, with interrupts on or off. You may change
memory either by entering the hex value or a source code statement for
immediate assembly.
Summary of keypresses:
Disk catalog Dump memory to disk Change home address
Change VDP registers Find values Fill memory
Change program counter Continuous execution Change page map
Toggle VDP/CPU display Step execution Assembler
Track PC (display will Toggle interrupts on/off Single-line assembly
follow the pgm) Screen dump Change register data
Dump disass. to disk Change status register Change VDP page
See user application Set CPU breakpoint Change workspace
screen Load memory image file Copy memory
Delete code Insert code Help screen
A configuration routine allows you to change the boot path, colors, etc.
User comment is invited. WAYNESTITH on DELPHI, or 73647,3000 on COMPUSERVE.
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