Recent content by BillGee

Not cheap, but still available. https://peripheraltech.com/

I did not do that. I wrote a parallel of your code by hand. By my Turbo Pascal project, I wanted a way to generate 8080 programs using Turbo Pascal which only makes programs for the Z80. I talk about it here...

I did a bunch of it in my Turbo Pascal for 8080 project. Your code may look like this when converted: E000 00001 BOARDA equ 0E000h 00002 0001 00003 PAWN equ 1 0002 00004 BPAWN equ 2...

I played a similar game called RATRUN on a SuperPET at the university computer center. Puzzles like https://puzzlemadness.co.uk/numberlink/medium https://puzzlemadness.co.uk/numbermaze/medium https://puzzlemadness.co.uk/pipeturn/medium https://puzzlemadness.co.uk/ballsort/medium would be...

Most schools that I know of use x86, 68000, MIPS, ARM or possibly RISCV to teach assembly language. 8085 trainers are still being made, so I have to presume those are being used somewhere. The 8085 is essentially an 8080 software-wise.

Scelbi did not make up the mnemonics. The 8080 evolved from the Intel 8008. Those were 8008 mnemonics. The 8080 is a superset of the 8008 and Intel later redefined the mnemonics. On most processors, ADD is an instruction to perform addition. Unless you are on an Intel 8008 where it is...

Me bad. I was testing this on an 8080 emulator, not actually under CP/M. I forgot that CP/M automatically echoes the input. Is there an emulator which also emulates the Dazzler?

I tested the code in an 8080 emulator. Are you trying this on real hardware or in emulation?

Source instead of assembled, plus TABS instead of spaces and it fits...

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; ; Starting from address 0C00 every time I hit the <ENTER> key, ; let me type in a byte that will be saved in that RAM address ; and then step to the next until it gets to address 0FFF. ...

Unfortunately, my code is more than 10000 characters...

00001 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 00002 ; 00003 ; Writes a "zero" into all the RAM from 0C00 to 0FFF. 00004 ; 00005...

Hugo is right about how the code is detecting 1000h. However, this code is very fragile. If you need to stop at any other value, it needs to be rewritten.

I do not currently have anything distributable. FLEX currently requires an ACIA for console I/O and a WD1771 disk controller for access to virtual disk images. If you can emulate those, we can try something.

I had previously reported that Corsham Technologies was selling reproductions of SWTPC computer components. They have also produced a CPU board based on the 6502 to plug into the same types of systems. Sadly, Bob Applegate passed away about a year ago after a long fight with cancer. I had never...