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Re: A Z80 Asm rec
This is Herb Johnson. The HTML document file in my ZIPped asmx distribution is a copy of a similar file in Bruce Tomlin's asmx distribution. My copy has changes which represent the changes I made in
By thinkpast · #342 ·
Re: A Z80 Asm rec
Hello folks, I'm Herb Johnson, the distributor of a version of Bruce Tomlin's great asmx cross assembler. It was called to my attention, there was a discussion here about "my" asmx, Bruce's asmx, and
By thinkpast · #341 ·
Re: FORMATTING THE uSD
Te St506 predated the st225 by about two years.? I have a few of the latter as they were free (RD 31 and also St250s RD32).? I prefered the RD52 Quatum drives much faster and more reliable.? I
By ajparent1/kb1gmx · #340 ·
Re: FORMATTING THE uSD
I think I've seen an ST506 back in the day... but for the most part, I was playing with ST-225's on PDP's.? 20Meg was very nice but still not enough for any large systems. For the big 8Meg disks, I
By joshbensadon · #339 ·
Re: FORMATTING THE uSD
Hi: If I comprehend the question, you're not sure how to tell what file system the SD card is formatted for? And further, how to format a partition as FAT16? On WINDOWS, go to "MY COMPUTER" and
Re: FORMATTING THE uSD
Thanks Lee. I used parted to examine the uSD and discovered it was basic fat 16. I come from a time when a ST506 (5MB) seemed like more space than usable.. That lasted maybe a month.? Most systems
By ajparent1/kb1gmx · #337 ·
Re: FORMATTING THE uSD
It apparently does but that is not helpful. Man page on my system says the same thing save for I get... :mkfs.fat: unable to open /dev/sdb: No medium found Same for all variants of? sdb (stick)...?
By ajparent1/kb1gmx · #336 ·
Re: A Z80 Asm rec
I used DRI's MAC80 and Microsoft's M80 for most of my Z80 programming. Later I got the SLR180 assembler, which was the fastest and most versatile Z80 assembler. I used it to write a lot of code for
By Lee Hart · #335 ·
Re: FORMATTING THE uSD
Hi Allison, Yes, the SD-card has to be formatted FAT16. This is also why you can't use cards over 2 Gb. It's hard for me to imagine needing over 2 Gb on a computer as small as the Z80MC! Since small
By Lee Hart · #334 ·
Re: FORMATTING THE uSD
I'm pretty sure mkfs.fat will create a FAT16 disk -- from the man page, "mkfs.fat? is? used? to? create an MS-DOS filesystem under Linux on a device". -Bob
By Bob Kay · #333 ·
Re: FORMATTING THE uSD
If it's not FAT16, the SD Init will fail and let you know it's a bad partition type.?
By joshbensadon · #332 ·
Re: FORMATTING THE uSD
Problem solved... Used a old(CA 2004) Compaq pentium based machine running NT4 that would do FAT16. However the drd was already formatted fat 16. Solved.
By ajparent1/kb1gmx · #331 ·
FORMATTING THE uSD
The supplied uSD with the Z80MC according to the docs must be formatted FAT16... Mine out of the box has a label Z80-SIO... a good thing but was it formatted to FAT 16? If not I have one more system
By ajparent1/kb1gmx · #330 ·
Re: A Z80 Asm rec
Oddly the Zip files I found none had a manual... Then again I was looking for a TXT or DOC and it was HTML.. Oddly neither Herbs note or the HTML explain why H(val) or HIGH (VAL) does not behave as
By ajparent1/kb1gmx · #329 ·
Re: A Z80 Asm rec
Need to find out how ASMZ80 does it.? Perhaps you will need to mask the address and shift it? LD L, LED_DISPLAY_SB & 0xFFLD H, HIGH_SCAN_PTR >> 8 Need to read the ASMZ80 manual to see how they
By joshbensadon · #328 ·
Re: A Z80 Asm rec
Never mind...? Even if the cross assembler were right I'd still have to heavily edit the code for a CP/M native assembler. I'd briefly considered feeding the ZASMV20 to BDS C compiler but it
By ajparent1/kb1gmx · #327 ·
Re: A Z80 Asm rec
I thought I had the assembler used... ASMZ80? does not digest the following: LD L,LOW LED_DISPLAY_SB? ;Restart Pointer to Secondary Buffer LD H,HIGH SCAN_PTR OR? ? ? ? LOW LED_DISPLAY Best
By ajparent1/kb1gmx · #326 ·
Re: Z80 1st boot (wooot!)
Just a note there were versions of CP/M late in the game for Z8000 and 68000 that were the basic system written in C.? It turns out the 68K? had a instruction set remarkably close to PDP11 and VAX
By ajparent1/kb1gmx · #325 ·
Re: Z80 1st boot (wooot!)
A way late coooment as I didn't see it then... I was a digit, aka DEC employee and lived in the central engineering world. I got to see a lot of really cool stuff. It was available three
By ajparent1/kb1gmx · #324 ·
Another SBC And...
years (many) I built a xz80 machine around the Z80/dart/CTC/eprom and ram and as a change up for early 80s 1982 end of year to be precise... BM? bubble memory actually magnetic bubble memory.? I was