home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
HyperLib 1997 Winter - Disc 1
/
HYPERLIB-1997-Winter-CD1.ISO.7z
/
HYPERLIB-1997-Winter-CD1.ISO
/
オンラインウェア
/
PRG
/
Z80ppc 160.sit
/
Z80ppc 160
/
what-the-hell-is
< prev
next >
Wrap
Text File
|
1995-11-19
|
2KB
|
42 lines
----------------------------------------------------------------------------
Program: Z80 emulator (source only)
Author: Guenter Woigk, 91052 Erlangen, Nuernberger Str. 79, Germany
email: kio@vanilla.nbg.sub.org
Task: Drive emulators for ancient computers ...
Platform: Apple Macintosh
Distribution: Freeware
Uploaded by: kio@vanilla.nbg.sub.org (Guenter Woigk)
Enclosed files: Archive with source and documentation
----------------------------------------------------------------------------
The Z80_PowerPC package is a C coded emulator of the Zilog Z80 CPU. It is
designed for high speed and easy to use. Though if you include all options, it
becomes slower and harder to understand...
Actually it was written to drive Mac Spectacle, the Sinclair ZX Spectrum
emulator from the same author. (oh yes, that's me!)
Features:
・ all legal instructions
・ all known illegal instructions (nearly no opcode gaps)
・ all flags (8 bit)
・ exact T cycle counting
-> exact speed
-> timing loop depending sound
-> timing loop depending tape i/o
-> highres screen update
・ ROM write protection (except stack operations)
・ exact R register emulation
・ 1 instruction latency after EI
・ Info calls for all illegal and some interesting instructions
・ instruction and address profiling
・ Single stepping
The emulator is fast enough to run the Z80 at approx. 16 MHz on a 66 MHz
PowerPC, though this varies depending on the opcode mix; and regular refresh of
the a virtual screen and event polling from the Mac OS will slow it down -
potentially to a crawl.