Hi there

I'm wondering what Cross-Assembler are used from members of this group
on FreeBSD or Linux? Are there any tools that you could recommend?

BR Lorenz

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On Saturday, 1 February 2020 21:33:33 UTC, Lorenz Born wrote:

Hi there

I'm wondering what Cross-Assembler are used from members of this group
on FreeBSD or Linux? Are there any tools that you could recommend?

BR Lorenz

I built a version of the GNU binutils (including the assembler) on Cygwin under Windows, targetting 68k, several years ago. I don't remember it being particularly difficult. I imagine it would be equally easy hosted on BSD or Linux. Actually, I vaguely
remember building it on a Raspberry Pi, too, but I don't have that with me now to check.

I wrote a little utility to convert the resulting ELF file into a boring binary file I could program into non-volatile RAMs using a board I added to a Raspberry Pi.

I also built the GNU C compiler, but I never got a working libc, which the C compiler relies on surprisingly often :-(

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Le 02/02/2020 à 21:53, Bruce Mardle a écrit :

On Saturday, 1 February 2020 21:33:33 UTC, Lorenz Born wrote:

Hi there

I'm wondering what Cross-Assembler are used from members of this group
on FreeBSD or Linux? Are there any tools that you could recommend?

BR Lorenz

I built a version of the GNU binutils (including the assembler) on Cygwin under Windows, targetting 68k, several years ago. I don't remember it being particularly difficult. I imagine it would be equally easy hosted on BSD or Linux. Actually, I vaguely

remember building it on a Raspberry Pi, too, but I don't have that with me now to check.

I wrote a little utility to convert the resulting ELF file into a boring binary file I could program into non-volatile RAMs using a board I added to a Raspberry Pi.

I also built the GNU C compiler, but I never got a working libc, which the C compiler relies on surprisingly often :-(

Hi,

https://bitsnbikes.blogspot.com/2010/02/das-blinklicht-with-gcc-elf-m68k.html

Use newlib instead of libc https://www.aslak.net/index.php/2019/03/18/adding-a-c-library-to-the-68000-sbc/ https://github.com/jefftranter/68000/tree/master/newlib_example/newlib https://sourceware.org/newlib/

--
The 68K Documentation http://marc.retronik.fr/motorola/68K

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On Saturday, 1 February 2020 21:33:33 UTC, Lorenz Born wrote:

Hi there

I'm wondering what Cross-Assembler are used from members of this group
on FreeBSD or Linux? Are there any tools that you could recommend?

BR Lorenz

I've also used http://www.easy68k.com/
(My 68k-programming is on hold until I add a serial interface to my homebrew. Could be some time!)

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On Monday, 3 February 2020 13:56:43 UTC, Marc J. wrote:

Are you the guy how bought a lot of MC68012 on Ebay years ago?

That's me! Did I sell you 3? Do they work? I still haven't used any of the other 14, though I've got a PGA socket waiting. You'd think at least I could manage a 'NOP' test circuit [rolls eyes] :-)

Incidentally, if anyone's reading this thread and wants a version of Easy68k that can assemble 68010 or 68012 instructions, I built one: https://www.dropbox.com/s/tsi2cet44nlt3c2/EDIT68K.exe?dl=0
(The simulator won't understand the 'new' instructions and till almost certainly give the wrong timings for the 010's loop mode.)

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Le 03/02/2020 à 11:09, Bruce Mardle a écrit :

On Saturday, 1 February 2020 21:33:33 UTC, Lorenz Born wrote:

Hi there

I'm wondering what Cross-Assembler are used from members of this group
on FreeBSD or Linux? Are there any tools that you could recommend?

BR Lorenz

I've also used http://www.easy68k.com/
(My 68k-programming is on hold until I add a serial interface to my homebrew. Could be some time!)

Bruce,

Are you the guy how bought a lot of MC68012 on Ebay years ago?

--
The 68K Documentation http://marc.retronik.fr/motorola/68K

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On Monday, 3 February 2020 13:56:43 UTC, Marc J. wrote:

Are you the guy how bought a lot of MC68012 on Ebay years ago?

I occasionally dream up 68012 circuits, e.g. having 1 GiB address memory and the other 1 GiB address an MMU's page table.

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Le 03/02/2020 à 15:08, Bruce Mardle a écrit :

On Monday, 3 February 2020 13:56:43 UTC, Marc J. wrote:

Are you the guy how bought a lot of MC68012 on Ebay years ago?

I occasionally dream up 68012 circuits, e.g. having 1 GiB address memory and the other 1 GiB address an MMU's page table.

With a customized version of OS-9 :-)

--
The 68K Documentation http://marc.retronik.fr/motorola/68K

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Le 03/02/2020 à 15:05, Bruce Mardle a écrit :

On Monday, 3 February 2020 13:56:43 UTC, Marc J. wrote:

Are you the guy how bought a lot of MC68012 on Ebay years ago?

That's me! Did I sell you 3? Do they work? I still haven't used any of the other 14, though I've got a PGA socket waiting. You'd think at least I could manage a 'NOP' test circuit [rolls eyes] :-)

Incidentally, if anyone's reading this thread and wants a version of Easy68k that can assemble 68010 or 68012 instructions, I built one: https://www.dropbox.com/s/tsi2cet44nlt3c2/EDIT68K.exe?dl=0
(The simulator won't understand the 'new' instructions and till almost certainly give the wrong timings for the 010's loop mode.)

Yes, It's me. For now, like you, not tested or used.

--
The 68K Documentation http://marc.retronik.fr/motorola/68K

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On Monday, February 3, 2020 at 7:05:17 AM UTC-7, Bruce Mardle wrote:

On Monday, 3 February 2020 13:56:43 UTC, Marc J. wrote:

Are you the guy how bought a lot of MC68012 on Ebay years ago?

That's me! Did I sell you 3? Do they work? I still haven't used any of the other 14, though I've got a PGA socket waiting. You'd think at least I could manage a 'NOP' test circuit [rolls eyes] :-)

Incidentally, if anyone's reading this thread and wants a version of Easy68k that can assemble 68010 or 68012 instructions, I built one: https://www.dropbox.com/s/tsi2cet44nlt3c2/EDIT68K.exe?dl=0
(The simulator won't understand the 'new' instructions and till almost certainly give the wrong timings for the 010's loop mode.)

Bruce,
Is your 68012 still available for sale? I was just talking to a member on retrobrewcomputers forum who has several 68012 and interested in a redesigned version of Tiny68K (https://www.retrobrewcomputers.org/doku.php?id=boards:sbc:tiny68k)
that uses 68012 instead. I've successfully running 68010 on Tiny68K with patched CP/M68K, so it should be just a new board layout to accommodate the 68012. The redesigned board should have more room to put in a couple expansion bus. So, my question is
do you have a couple 68012 that you can sell me? Maybe we can get a small user group of 68012 together.
Bill

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On Monday, February 3, 2020 at 6:37:19 PM UTC-7, coinst...@gmail.com wrote:

On Monday, February 3, 2020 at 7:05:17 AM UTC-7, Bruce Mardle wrote:

On Monday, 3 February 2020 13:56:43 UTC, Marc J. wrote:

Are you the guy how bought a lot of MC68012 on Ebay years ago?

That's me! Did I sell you 3? Do they work? I still haven't used any of the other 14, though I've got a PGA socket waiting. You'd think at least I could manage a 'NOP' test circuit [rolls eyes] :-)

Incidentally, if anyone's reading this thread and wants a version of Easy68k that can assemble 68010 or 68012 instructions, I built one: https://www.dropbox.com/s/tsi2cet44nlt3c2/EDIT68K.exe?dl=0
(The simulator won't understand the 'new' instructions and till almost certainly give the wrong timings for the 010's loop mode.)

Bruce,
Is your 68012 still available for sale? I was just talking to a member on retrobrewcomputers forum who has several 68012 and interested in a redesigned version of Tiny68K (https://www.retrobrewcomputers.org/doku.php?id=boards:sbc:tiny68k)
that uses 68012 instead. I've successfully running 68010 on Tiny68K with patched CP/M68K, so it should be just a new board layout to accommodate the 68012. The redesigned board should have more room to put in a couple expansion bus. So, my question

is do you have a couple 68012 that you can sell me? Maybe we can get a small user group of 68012 together.

Bill

Looking into 68012 datasheet. The ability to address 2 G of address is impressive, but 68010 is not particularly fast so all these added memory space seems wasted, unless there are specific applications it is targeting for. I plan to revise my Tiny68K
to accommodate 68012. Tiny68K already has 16 meg of memory that I can't fully utilize. I can certainly increase the memory to 64 meg, but is there something else I should be designing for?
Bill

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Am 01.02.20 22:33, schrieb Lorenz Born:

Hi there

I'm wondering what Cross-Assembler are used from members of this group
on FreeBSD or Linux? Are there any tools that you could recommend?

BR Lorenz

Dear all

Thank you all for your very appreciated help, suggestions and information.
--
Lorenz Born
lorenz<dot>born<at>gmail<dot>com

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