Re: Proposed Assembler Commands
- From: John Larkin <jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Wed, 04 May 2005 08:04:28 -0700
On Wed, 4 May 2005 13:56:20 +0000 (UTC), kensmith@xxxxxxxxxxxxxxx (Ken
Smith) wrote:
>ICE-86 was an emulator for the 8086. It copied mostly the commands of
>ICE-80. You could load the program into the RAM iside the ICE-86 and run
>it on your target hardware. The load operation took (on my project) 4
>hours[1] to load the code. If you loaded a small program and then
>transfered the real code via a RS232 link it was much faster so that is
>what we did.
>
>[1] No kidding folks.
>
>After the "series 3" came the "series 4" which led us to state that each
>version is better than the next.
>
>The operating system was something called ISIS. It was a more advanced
>operating system than MSDOS was on the day the PC came out.
>
>
We just cross-assembled uP code on a DEC timeshare system (later, on a
PC) and ran a tiny "monitor" (hex loader/debug thing) on the target
itself. That was a lot more efficient than buying a monster
soon-to-be-obsolete ICEbox.
Nowadays we cross-assemble on a PC and test with a background debug
pod running off an ebay laptop. The whole chain costs about $600,
roughly $100 in 1972 dollars.
John
.
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