Search found 552 matches

by hlide
Wed Jul 28, 2021 8:31 pm
Forum: Other
Topic: Text To Speech
Replies: 9
Views: 59

Re: Text To Speech

I don't know what's you called speech program: concatenation of some robotic phonemes? They are not what I called decent. :)
by hlide
Wed Jul 28, 2021 4:58 pm
Forum: Other
Topic: Text To Speech
Replies: 9
Views: 59

Re: Text To Speech

You will need a decent bitrate to output a good speech and 64KByte is not enough.
by hlide
Mon Jul 26, 2021 11:02 am
Forum: Other
Topic: Text To Speech
Replies: 9
Views: 59

Re: Text To Speech

Can you extract the basic program as a text file so we can have a look?
by hlide
Mon Jul 19, 2021 1:54 pm
Forum: Assembly
Topic: Undocumented instructions OR IY
Replies: 8
Views: 80

Re: Undocumented instructions OR IY

IN F,(C) is known as IN (C) in assemblers which handle it. All undocumented opcodes are known: https://baltazarstudios.com/z80explorer/. https://baltazarstudios.com is in my opinion a great website to master all the aspects of Z80 (including what is done under M-cycles/T-states and even half-cycles)...
by hlide
Sun Jul 18, 2021 10:27 pm
Forum: Assembly
Topic: Undocumented instructions OR IY
Replies: 8
Views: 80

Re: Undocumented instructions OR IY

There is RASM which allows compact notation like:
- PUSH AF, BC, HL, DE -> PUSH AF : PUSH BC : PUSH HL : PUSH DE
- SRL HL -> SRL H : RR L

And so on.
by hlide
Sun Jul 18, 2021 10:22 pm
Forum: Assembly
Topic: Undocumented instructions OR IY
Replies: 8
Views: 80

Re: Undocumented instructions OR IY

IN F,(C) is an aberration (as the same way as JP (HL) instead of JP HL) should be IN (C) because we don't store value from data bus into F register.

You mean OUT (C),0 ?
by hlide
Sat Jul 17, 2021 9:49 pm
Forum: Assembly
Topic: Undocumented instructions OR IY
Replies: 8
Views: 80

Re: Undocumented instructions OR IY

I posted an issue the savannah.nongnu.org but it seems there is already one because it seems to be fixed now:
https://git.savannah.nongnu.org/cgit/z8 ... 6cb37c6cc2
by hlide
Thu Jul 15, 2021 6:02 pm
Forum: Assembly
Topic: Undocumented instructions OR IY
Replies: 8
Views: 80

Re: Undocumented instructions OR IY

https://clrhome.org/table/#or%20ixl

says OR IXL is DDB5.

I use Visual Studio Code with some extensions like Z80 Assembly Meter and Z80 Instruction Set and they tell the same thing. And so is the assembler I use. So I believe z80asm is wrong.

Same for ASM80 online:
asm80_or_ixl.png
by hlide
Mon Jun 28, 2021 1:27 am
Forum: Assembly
Topic: Assembling Z80 source using TASM or similar
Replies: 18
Views: 539

Re: Assembling Z80 source using TASM or similar

I tend to keep them in a bitmask so I can press them simultaneaously (going right with [->] and firing with [SP] for instance). This one I used for Brick Buster: ; ----------------------------------------------------------------------------- ; Reset keyboard ; -------------- ; in: ; none ; out: ; fl...
by hlide
Thu Jun 24, 2021 10:44 pm
Forum: Hardware
Topic: MZ-700 Monitor Command 'F' and add-on ROM hardware
Replies: 18
Views: 612

Re: MZ-700 Monitor Command 'F' and add-on ROM hardware

Those with 4ms are the biggest DRAM. I'm not sure but they probably also ask for a 8-bit refresh register. Now the Z80 only offers a 7-bit refresh register (R).