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z80pack release 1.23
Udo Munk says: ...You'll find this in all their products before 1979, nothing will work on a Z80 because of that. It got better when they did the Z80 softcard for Apple. There was not much more other software with this problem, because everyone else of course avoided questionable programming like this, and that al
1920 Jun 2014 4:16 pm
WANTED: Software Tools for CP/M, Version 1.2, Unicorn …
Mr. Emmanuel Roche, Fran… says: UNICORN.WS4 ----------- - "Software Tools for CP/M systems from Unicorn" Stephen Mann "InfoWorld", Vol.4, No.31, August 9, 1982, p.30 (Retyped by Emmanuel ROCHE.) When I first heard about Software Tools from Unicorn Systems, I was intrigued. When I found out more about the tools, I was fascinated. A
119 Jun 2014 8:36 am
F80 date puzzle
Ed says: ...Thanks for looking into it. In the buggy version, line ***** 0010' LD DE,(K-0002) lacks the negative offset (compensation for Fortran indexes starting at 1 rather than 0). So only version v3.4 "Created: 19-Feb-85" appears to have the bug ...
1119 Jun 2014 1:20 am
How much ROM/RAM does CP/M need?
Jay_in_Dallas says: Regarding: Floppy Cables To Both 8 inch and 5 1/4 inch drives: ------------------------------ ------------------------------ - ...I dug out the SD Sales/SD Systems manuals last night and confirmed Holger's point that the Versa-Floppy One, designed in February 1978 as SD Systems, could only be jumpere
2613 Jun 2014 4:00 pm
Micro/Systems Journal
Jay_in_Dallas says: Regarding: Octagon Computer Systems: ------------------------------ ----- I found my notebook with manuals, schematics and assembly diagrams for three of the Octagon board sets. About a year after SD Systems acquired Octagon (bone-headed acquisition) the owners sold off the computer division. I don'
512 Jun 2014 11:30 pm
Decompilation of CP/M 1.3 BDOS
retrogear says: ...Larry Email me - larrygr510 AT gmail DOT com retrogear (another Larry :) BTW - all of the sources have been typed in already and the state of the manuals are still in flux
2512 Jun 2014 6:23 pm
source for 8K Altair BASIC anyone?
Udo Munk says: Has anyone ever typed in the version 3.0 source for Altair BASIC 8K from the MITS manual? If so I would like a copy for the z80pack project, thanks in advance.
106 Jun 2014 11:45 am
Loading .imd files into SIMH says: ...Have a look at CDOS or CP/M Plus on this page Both use .IMD files. If you are using the CP/M 2.2 from here you can also use attach hdsk0 yourdisk.imd and access the contents as CP/M drive I: yourdisk.imd needs to be a CP/M formatted dis
203 Jun 2014 4:46 pm
Adding Structured Control-Flow to Any Assembler
Ed says: Ed wrote: ...Dave has advised there is a new page which covers short-circuit conditionals, case/switch statements and counted loops. turedControlFlowToAnyAssembler2 .htm
1331 May 2014 10:55 am
Load error bug in Lopushinsky CP/M-86 emulator
Ed says: ...Thanks for the tip. I tried booting F83.CMD on AME86 (the program the Lopushinsky emulator didn't like) and it siezed up ... keyboard input produced junk and no way to exit. /Forth/Compilers/native/cpm86/ I've since patched F83.CMD so it boots on Jim's emulato
331 May 2014 10:34 am
CP/M-86 disk file transfers?
Ed says: ...Sorry for the delay in replying. I discovered the 1.44M binary image you mention in the blog and it appears to work fine when written to a disk and 22DISK is used to transfer files. For me, this is easier than cpmtools. I suspect the problem I was having with the IMD image and cpmtools is that th
1031 May 2014 10:11 am
How to create a CF boot DOS
s_dubrovich says: ...I can't help much, but I can point out some things. I noticed the CF adapter has a jumper to select to act as master/slave or slave/master. I'm not too sure exactly what is meant by that. It is usually more clear that one position is Master, and the other position is Slave. There is not a jumper
230 May 2014 4:43 pm
Any CP/M-Like Work Done for the eZ80?
Jay_in_Dallas says: Addendum: It is true that you can merely force a TRAP at the BIOS links at UU.0000h-00FFh or link directly the kernel in ADL mode from there. -Jay in Dallas
3430 May 2014 3:20 pm
z80pack release 1.22
Udo Munk says: available at: un/z80pack/ Improvements: Faster networking code under all supported OS's. With this version a CP/NET remote disk is almost as fast as a local disk. Telnet option negotiation rewritten. The telnet server should be able now to handle all and any negotiation
129 May 2014 3:53 pm
XYBASIC resurrection
Udo Munk says: Mark Williams Company XYBASIC has been resurrected, see here for the very interesting story: wc/XYBASIC.php For z80pack you can download a harddisk image with all sources, submit scripts and executables for CP/M as well as a standalone version for the Altair 8800. Unlik
125 May 2014 11:17 pm
WTB: Northstar floppy controller board
Jay_in_Dallas says: ...If you find one in the meantime, feel free to request me to copy some of my documentation for you... I've got it all including the assembly instructions. I'll be recovering my North Star floppy content by other means; that will allow me to do my system restorations later. I need to read/recover a
524 May 2014 6:18 pm
Game of Thrones author still uses Wordstar 4.0
rob.zenilman says: v=X5REM-3nWHg Favorite quote: "If I wanted a capital, I would have typed a capital."
120 May 2014 9:51 pm
M80 from the shallow end of the pool
Jim Higgins says: On Fri, 16 May 2014 00:58:46 -0700 (PDT), in <033d7b97-3465-4401-aaeb-57af6>, "Mr. Emmanuel ...They are required after labels in front of instructions that generate code. EQUs don't generate code.
1019 May 2014 10:04 pm
IBM 5170 AT 286
gm1mqe says: ...If you do not have a standard Seagate 20mg available look for an AT bus SCSI card and a SCSI hard disk. Ebay is probably the best source. At boot the AT will look for and ROMs with the correct signature at the start and will then "hook" the BIOS on the adapter card to the system BIOS. I had a ver
218 May 2014 3:36 pm
CP/M-68K simulation
rp65536.rp says: Am Samstag, 17. Mai 2014 14:34:43 UTC+2 schrieb David Schultz: ...Post your stuff, your should definitively do so.. At least one guy would interested :) What I did, just don't have a page to post it, on Linux M68k an CP/M 68k emulator. Basically I allocate memory in the own program space, where I lo
1117 May 2014 1:08 pm
WANTED: SP80 from Structured Analysis Systems, Reston,…
Mr. Emmanuel Roche, Fran… says: 8080.DOC Macro package for MACRO-11 to assemble 8080 mnemonic code The 8080 cross assembly macro and acompanying programs are part of a masters thesis for Worcester Polytechnic Institute in Worcester, Massachusetts by Bruce Filgate. Although the entire thesis consisted of the three herein contained
314 May 2014 5:04 pm
S-100 versus ebay
cory.klatt says: ...Yes, please do! I'm in need of a couple S-100 boards, but just can't stomach the prices on eBay.
1314 May 2014 4:11 pm
Butler Flats Associates floppy drive cabinet and contr…
Mr. Emmanuel Roche, Fran… says: Intrigued by the name BUTLER FLATS ASSOCIATES, I made another search. This time, I find that this company was created in 1984 (hence its mention in BYTE in 1987), but closed in 1990. However, I found the name of its President who, apparently, still lives in Rochester, MA, if someone living nearby wa
313 May 2014 8:27 am
Z8K SBC and CP/M
Roger Ivie says: ...That's not quite what I said. What I said is that the CP/M BIOS doesn't *have to* depend on PC BIOS. If you're on a platform that has something like the PC BIOS, it makes sense to use it. If you don't have a PC BIOS, you don't have to write one to make CP/M run on the platform.
912 May 2014 2:04 pm
Auto RS232 detection?
Jay_in_Dallas says: ...I'm a week behind you on booting my SB180. I dug every thing out of storage and it all looks to be in good shape. However, I'm going to proceed carefully even though it’s a low probability that there will be any problems. I have two Shugart 465s (80trk DS) and a Shugart 400 (40trk SS?) and t
2205 May 2014 3:43 pm
Disposing of some CP/M stuff
V1050 says: ...Oh well, thanks anyway. I won't ask how it was disposed. My Visual Technology V1050 used to run a daisy-wheel. At this time i'm wondering if the Wyse terminals would function as backup or replacement for the stock terminal that came with my machine. It's driven by CP/M Plus (3.0), a Z80 and a ded
2903 May 2014 10:09 pm
60 Minutes went into a missile silo tonight...
Dennis Boone says: ... > personnel only" security can be actually valid While it's true that secrecy is fleeting, in at least Snowden's case, the NSA pretty much failed to even try. As a low level contractor in a relatively out-of-the-way installation, he had essentially unfettered access to stupidly large amounts of
2102 May 2014 4:13 pm
CP/M disks for Vector 4?
commodorejohn says: ...I'm not sure exactly what it is, I haven't had it open yet. I assume it's one of the factory options, which as I read on uk/page5.html would be either 5, 10, or 40MB, but I have no idea what the make is. It definitely does spin up, and while it's on the noisy side as
530 Apr 2014 2:36 pm
PLM-80 Native Compiler
dott.Piergiorgio says: Il 28/04/2014 16:01, ha scritto: ...I also have DL' it. looks interesting; later I'll test it inside dosbox & Dosemu (nested emulation isn't a novelty for me....) Best regards from Italy, dott. Piergiorgio.
3828 Apr 2014 2:51 pm
Applying AC power after 30 years?
David Schmidt says: ...That's a well-known problem - take a look here: bd/ faq-hw-kb_repair.html
1628 Apr 2014 2:26 pm
Moving clean-out.
Walking Through says: While packing bookcases into boxes for a move, the following turned up: Digital Research CP/M Plus Operating System Digital Research Programmer's Utilities I can't find the diskettes... but the manuals are intact. Also found: Microsoft Basic Interpreter for CP/M-80. 8" disk. Microsoft Macro Assemble
127 Apr 2014 8:38 pm
Memorial event for Gary Kildall
monahan9999 says: For those that missed it, I have written up a short summary of the memorial event yesterday in Pacific Grove, CA for Gary Kildall here:- 20Page.htm Enjoy John
127 Apr 2014 4:48 am
Ed says: ...Reminds me of 8086 MASM/TASM which are very fussy when it comes to datatypes. e.g. one can define BDOS as constant/offset and do arithmetic on it but when CALLed, one must add the base address of its segment to it - even if that base address is 0000h.
625 Apr 2014 3:43 am only at - anybody else have we…
Jay_in_Dallas says: NEW ZILOG eZ80 DEVELOPMENT SYSTEM ------------------------------ --- Someone asked about the new Zilog eZ80F91 Development System I mentioned. Its the “ eZ80F910300KITG ” not the eZ80F910300ZCOG * (*Replaced by the eZ80AcclaimPlus! Development Kit (eZ80F910300KITG) February 2014.) Guess th
423 Apr 2014 6:58 am
cpm-86 disk image
Harald Peters says: is that image Public Domain? Op Sat, 18 Aug 2012 13:46:52 +0200 schreef Ivan Shmakov :
1822 Apr 2014 10:25 pm
IMDOS version check
Udo Munk says: I was just reading some old notes and this might be interesting for others. Same as CP/M also IMDOS does this stupid version check. For 2.05 to get rid of this: version check patch 0EE1 -- 3 x NOP 0EEA -- 3 x NOP version check patch 039A -- 3 x NOP 03A1 -- RET
122 Apr 2014 6:47 am
This Friday Memorial event for Gary Kildall
new_castle_j says: I hope someone makes a video recording available.
221 Apr 2014 1:53 pm
ddt v1.4 bug patched?
dott.Piergiorgio says: Il 18/04/2014 22:32, retrogear ha scritto: ...the "glitch in copying" makes sense, from 72 to 7A is only one bit toggling (or rotting....) I don't known if is widespread enough to write a patch program (I often use emulator's debuggers instead of native ones, so don't have actually done much with DD
219 Apr 2014 11:30 am
TDO File type
gm1mqe says: Thanks Dave, I will get it and try it after the Easter vacation. Cheers, Andy
419 Apr 2014 5:40 am
s_dubrovich says: ...Once upon a time Intel had a document that explained conversion from 8080 code to 8086 code. Anyone know anything about it?? ...Direct conversion like that is problematic because the asm86 source is destined for cpm-86 .cmd form. Yet for DOS .COM, one can write an asm program in say, NASM, using
5618 Apr 2014 6:42 pm
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