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
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#342
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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
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thinkpast
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#341
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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
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ajparent1/kb1gmx
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#340
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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
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joshbensadon
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#339
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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
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SCOTT VITALE
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#338
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Edited
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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
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ajparent1/kb1gmx
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#337
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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)...?
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ajparent1/kb1gmx
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#336
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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
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Lee Hart
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#335
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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
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Lee Hart
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#334
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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
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Bob Kay
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#333
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Re: FORMATTING THE uSD
If it's not FAT16, the SD Init will fail and let you know it's a bad partition type.?
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joshbensadon
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#332
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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.
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ajparent1/kb1gmx
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#331
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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
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ajparent1/kb1gmx
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#330
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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
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ajparent1/kb1gmx
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#329
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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
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joshbensadon
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#328
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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
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ajparent1/kb1gmx
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#327
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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
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ajparent1/kb1gmx
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#326
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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
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ajparent1/kb1gmx
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#325
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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
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ajparent1/kb1gmx
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#324
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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
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ajparent1/kb1gmx
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#323
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Edited
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