Steve's REXCPM allows you to run CP/M 2.2 on the stock Model 100 - however, not all popular CP/M software can run on the 8080 / 8085. A notable exception being Turbo Pascal - but there is help! With Steve's NSC800 mod, a Model 100 brain-transplant swapping the 80C85 with the Z80-compatible NSC800 CMOS-CPU from National Semiconductors, Turbo Pascal can indeed run on the Model 100! The mod and installation procedure is a bit involved, see bitchin100.com... and bitchin100.com.... It consists of three parts, all of which we are covering in this video:
Step 1: Get a basic REXCPM installation going in a stock (8085) Model 100. Patch it for NSC800 (Z80) and transplant it into a NSC800-modded Model 100.
Step 2: Prepare the NSC800 Model 100. This means de-solder the 8085, and replacing it with a socket so that it can be fitted with Steve's NSC800 CPU board. Moreover, the main ROM needs to be exchanged with a patched NSC800 Main ROM - this requires a 27256 EPROM and adapter board as well. The main ROM already has a socket. Then, move over the REXCPM from the stock Model 100 into the NSC800 machine (or swap the CPU) and reinitialize it with the help of the CPM.DO BASIC program.
Step 3: Load Turbo Pascal into the CP/M installation, and get it up and running. Enjoy!
Негізгі бет How to run Turbo Pascal on the TRS-80 Model 100 - REXCPM and the NSC800 Mod
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