Z80TRDOS 2.02

ZXNet echo conference «zx.spectrum»

From Ilya Aniskovets To All 1 May 1997

Hello All!
Thursday May 01 1997, 08:53 .

Damn bug in Z80TRDOS 2.02 incorrectly emulates an _undocumented_ _series_
of commands:
Bit n(0..7),(ix+ii) ( DDCBii40 (40-47 !46) etc.
He thinks that they work similarly to RLC SET RES 0,b,(ix+ii)
In normal Speccy Bit 0(0..7),(ix+ii) on DDCB0040(40-7f) they work the same.
Maybe someone knows Mr. Mochalin and can tell hey about this glitch?

With Best Regards,
Ilya .

From Alexander Mudretsov To All 21 May 1997

■ Hello Ilya!

■ May 01, on Thursday, at 08:53, Ilya Aniskovets wrote to All:

IA> Hello All!
IA> Thursday May 01 1997, 08:53 .

IA> Damn bug in Z80TRDOS 2.02 is wrong emulates an _undocumented_
IA> _series_ of commands: Bit n(0..7),(ix+ii) ( DDCBii40 (40-47 !46) etc. He
IA> thinks that they work similarly to RLC SET RES 0,b,(ix+ii) Normally
IA> Speccy Bit 0(0..7),(ix+ii) on DDCB0040(40-7f) work the same. Maybe
IA> someone knows Mr. Mochalin and can tell him about this glitch?
I know Vitaly. He did not write the Z80 himself, he only wrote the TRDOS emulation.

Alexander Mudretsov, e-mail: sa...@asp.jesby.tstu.ru