Eater 8-bit CPU Emulator for my 65816 System
To practice my 65816 assembly, and refresh myself on Ben's 8-bit CPU... And an emulator running inside an emulator... 🙂 On my Windows...
top of page
Search
rehsd
Jun 17, 20222 min read
65816 System - June 2022 General Update
In January of this year, I decided to try to build a new system based on the 65816 processor. It has now been almost five months, and I...
497 views2 comments
rehsd
Jun 15, 20220 min read
90 views0 comments
rehsd
Jun 12, 20221 min read
480x320 Debug LCD for 65816 System
To enable more verbose debug logging at runtime, I have added a higher-resolution LCD. Communication from the 65816 is handled with SPI....
238 views0 comments
rehsd
Jun 9, 20221 min read
65816 - Cached sprites, a joystick, and Mario enters the scene.
I have been posting updates to 65816 Assembly Coding Series, but I know people may not catch updates to existing, running blog posts. The...
22 views0 comments
rehsd
May 30, 20221 min read
65816 Sound Card Substantially Complete!
My sound card is now substantially complete, and I can continue working on system assembly code to better utilize it. I have the sound...
279 views0 comments
rehsd
May 16, 20222 min read
Creating New Music for My 65816 Sound Card
I was getting a bit tired of the previous song I had been using for my sound card testing. 1SMHARRIS suggested a song to try out next. In...
131 views0 comments
rehsd
May 14, 20222 min read
65816 Sound Card: First Song Playback from SD Card (SPI) & Updated Output Schematic
I now have the onboard SD Card (SPI for communication) working on my sound card. I ended up going without the hardware shift registers...
119 views0 comments
rehsd
May 7, 20222 min read
Arduino-controlled Programmable Sound Generator, with a Windows Interface
As I've been making some good progress on my sound card for my 65816 system (see /audio), I thought it would be good to start building...
663 views0 comments
rehsd
May 5, 20222 min read
65816 Sound Card: First Song Playback from Onboard Media ROM
Continued from Sound Card 2.0 PCB Build (rehsdonline.com)... I now have playback working from the media ROM on the sound card....
52 views0 comments
rehsd
May 5, 20221 min read
Eater 6502+PS2+VGA PCB - Building Your Own
Previously, I designed a PCB for my 6502, PS/2 keyboard, and VGA. The design is based on Ben Eater's video series. The only addition I...
977 views0 comments
rehsd
May 4, 20223 min read
65816 Motherboard - Building Your Own
I have received several inquiries from others wondering about building their own version of my 65816 motherboard. If you're interested in...
646 views0 comments
rehsd
Apr 30, 20221 min read
Emulator^2 -- Sound Card Emulator
Continuing with my 65816 Emulator series, my 65816 PC build is now to the point where an emulator for my sound card would be helpful. I...
69 views0 comments
rehsd
Apr 28, 20222 min read
Sound Card 2.0 PCB Build
In this running post, I will share the buildout of my sound card for my 65816 PC. Having the PCB in hand, I can say this will be the...
668 views0 comments
rehsd
Apr 27, 20221 min read
VIA Tester Add-in Card
I picked up a large batch of (likely used) VIAs on AliExpress. They were inexpensive ($1.64 USD per VIA), and I don't expect they will...
40 views0 comments
rehsd
Apr 27, 20221 min read
Joystick Add-in Card
I ended up removing the joystick ports from my sound card design, since I would like to have the primary system processor handle joystick...
45 views0 comments
rehsd
Apr 24, 20222 min read
65816 Assembly Coding Series
As I'm learning and implementing assembly code for my 65816 PC, I'll post periodic updates here. I'm doing OK with the assembly so far,...
298 views2 comments
rehsd
Apr 22, 20222 min read
65816 PC Build Update (April 2022)
Back in January, I decided to start building a 65816 "PC." Up to that point, I had built a 6502 system with basic elements of a PC. The...
410 views0 comments
rehsd
Apr 21, 20221 min read
USB Mouse Add-in Card for My 65816
I'm working with what I have... I have a 65816 computer, and I want a USB mouse. I have a 6502 computer with USB mouse support. I have...
222 views2 comments
rehsd
Apr 20, 20222 min read
Experimenting with Bus Resistors
As I have now found some nice stability with my 65816 system running at 14.16 MHz, I thought I would come back to bus resistors and see...
74 views0 comments
bottom of page