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Offline Nicolas Lecoq

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M4 and cp/m
« on: 19:11, 05 December 20 »
Hello,I have a M4 from Duke. On my SD card, I have disc1.dsk and disk3.dsk. I have loaded disk1 on my cpc. But when I write "ùcpm", the cpc search a floppy disc on the driver and not on SD card. I want to program dr logo on my cpc 6128 and I can't. I program logo language on winape but it would be better on real machine.
Thx
Nicolas
« Last Edit: 19:14, 05 December 20 by Nicolas Lecoq »
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Offline robcfg

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Re: M4 and cp/m
« Reply #1 on: 21:07, 05 December 20 »
That's because CP/M is accessing the floppy drive controller directly so the M4 cannot redirect that to the SD card.
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Offline MiguelSky

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Re: M4 and cp/m
« Reply #2 on: 10:15, 06 December 20 »
Maybe you can better use the tape version of Logo that is here: https://www.amstrad.es/doku.php?id=aplicaciones:logo or here https://www.cpc-power.com/index.php?page=detail&num=4386
« Last Edit: 10:16, 06 December 20 by MiguelSky »
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Offline GUNHED

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Re: M4 and cp/m
« Reply #3 on: 21:47, 07 December 20 »
Better use CP/M Plus in ROM (the M4 provides ROM space), then you start more quick. See my homepage.


If there is interest, then I can put DR Logo 3 for CP/M Plus in ROM. However I have to check if this works, because IIRC it does use some specific routines from the Amsdos ROM.
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Offline GUNHED

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Re: M4 and cp/m
« Reply #4 on: 02:44, 10 December 20 »
Well, I had a look...

- LOGO3.COM does run with the ROM resident CP/M Plus.
- LOGO3.COM is 49 KB long, this would occupy 3 ROMs - IMHO toooo much

Solution: Start CP/M Plus from ROM and LOGO3 from DSK.
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Offline Nicolas Lecoq

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Re: M4 and cp/m
« Reply #5 on: 21:51, 12 December 20 »
Hello @GUNHED ,I have put CP/M+ ROM, found on cpcwiki from Vorax. It appears in starting the computer. But, when I enter |cpm, the floppy disc drive runs. The problem is not solved.
« Last Edit: 21:53, 12 December 20 by Nicolas Lecoq »
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Offline VincentGR

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Re: M4 and cp/m
« Reply #6 on: 21:54, 12 December 20 »
Try this:


|O
|OP
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Offline GUNHED

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Re: M4 and cp/m
« Reply #7 on: 22:29, 12 December 20 »
Quote from: Nicolas Lecoq on 21:51, 12 December 20
Hello @GUNHED ,I have put CP/M+ ROM, found on cpcwiki from Vorax. It appears in starting the computer. But, when I enter |cpm, the floppy disc drive runs. The problem is not solved.
You need to install both ROMs. Then you can f.e. start with !EMS.

However since you have installed maxam you can look at the RSX commands of the CPM Plus ROM with the command:
!HELP,rom_number
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Offline Nicolas Lecoq

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Re: M4 and cp/m
« Reply #8 on: 23:14, 12 December 20 »
Hello @GUNHED You are very fantastic  :D .
Logo3 is alive again on my CPC.thx you my friend....
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Offline GUNHED

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Re: M4 and cp/m
« Reply #9 on: 23:16, 12 December 20 »
Quote from: Nicolas Lecoq on 23:14, 12 December 20
Hello @GUNHED You are very fantastic  :D .
Logo3 is alive again on my CPC.thx you my friend....
Wohoooo! Great you made it. To be honest I had some doubts if this works with DSKs on M4.
But it works for you that's all that counts.  :) :) :)
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Offline Nicolas Lecoq

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Re: M4 and cp/m
« Reply #10 on: 10:05, 13 December 20 »
I don't find my original disk cp/m+(disk 1-2) for this time. But I have the other floppy disk(3-4). I didn't use .dsk because under cp/m, I can't read the files on sdcard from M4. Logo3 works, it counts very much for me.
 8)

« Last Edit: 10:10, 13 December 20 by Nicolas Lecoq »
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