IBM 5150 PC

[Brian Lanning]

On Wed, Jul 8, 2009 at 11:33 PM, Fred Cisin<cisin at xenosoft.com> wrote:
> On Wed, 8 Jul 2009, Brian Lanning wrote:
>> about finding a new version of DOS (3.3) since debug had an assembler!
>>  Debug in 2.1 would only unassemble.  I managed to make a bootable 3.3
>
>
> Strange.
> I've used the DEBUG assembly capability in every version of PC-DOS, and
> most versions of MS-DOS.
>
>
> On some OEM versions of MS-DOS, MASM was included; on some, including
> PC-DOS, MASM was a separate product.

It could have easily been an older version of DOS I was using.  I
don't remember for sure.  But I know for sure assembling didn't work.
Unassembling worked just fine though.  I know I didn't have masm
either.