Thanks Ken, I'm using the UART buffer right now. That has 375 bytes according to the technical manual. That seems to be working but I'm hammering on it in Virtual-T to make sure it does cold start the machine. Kurt
On Wed, Jan 23, 2019, at 10:01 AM, Ken Pettit wrote: > Hey Kurt, > > On an NEC 8201a? > > 1. Keyboard buffer > 2. UART buffer > 3. BASIC Floating Point number calculation space: > > M100: TEMP 1 / FAC2 (Floating Point Accumulator) location (8 > bytes each, consecutive): FC60h> 8201a: FB24h (I'm pretty > sure there are 16 bytes available here > also, though I'm not as familiar with the NEC ROM disassembly.> > Ken > > > On 1/23/19 8:04 AM, Kurt McCullum wrote: >> I'm working on a little piece of code that loads some stored code >> from the option ROM on my NEC 8201a. I was able to tweak Gary Weber's >> disassembler code to get the bytes from the option ROM. But here is >> the problem. The code I am pulling down runs in the ALT LDC memory >> space. Alt LCD is 320 bytes in size. I only need 315 bytes of this, >> BUT, I need 15 bytes for the code to pull the data from the option >> ROM. So there isn't enough memory in ALT LCD to put the temporary >> loader AND the program I want to run after it is loaded. So I am >> looking for another area of memory where I can put the 15 byte >> loader. Is there another safe area I can momentarily use in RAM >> without causing havoc?>> >> Kurt
