rehsd

  • HOME

  • PROJECTS

  • ABOUT

  • CONTACT

  • BLOG

  • RESOURCES

  • More

    Use tab to navigate through the menu items.
    • All Posts
    • 16-bit CPU
    • 65816
    • 6502
    • FPGA
    • Audio
    • Graphics
    • 8-bit CPU
    • Software
    • Other Peripherals
    Search
    ISA Slot & Edge Wear
    rehsd
    • 2 days ago
    • 1 min

    ISA Slot & Edge Wear

    I have been using ISA slots and ISA edge connectors on many of my recent builds. I was asked some great question about durability...
    12 views0 comments
    16-bit Processor Build - Design Work, part 2
    rehsd
    • 2 days ago
    • 1 min

    16-bit Processor Build - Design Work, part 2

    Continued from 16-bit Processor Build - Design Work, part 1... Currently-planned Instructions My current plan is to have approximately 40...
    15 views0 comments
    16-bit Processor Build - Initial Assembly
    rehsd
    • Jul 29
    • 5 min
    16-bit CPU

    16-bit Processor Build - Initial Assembly

    I have started the hardware build of my 16-bit processor. In this running post, I will share progress updates and lessons learned as I...
    85 views0 comments
    16-bit Processor Build - Design Work, part 1
    rehsd
    • Jul 20
    • 9 min
    16-bit CPU

    16-bit Processor Build - Design Work, part 1

    As I have my VHDL-based prototype of my 16-bit processor running, I am now starting the design work on an actual hardware implementation....
    282 views0 comments
    Building an Assembler for My 16-bit Processor
    rehsd
    • Jul 9
    • 1 min
    16-bit CPU

    Building an Assembler for My 16-bit Processor

    I have started building an assembler for my 16-bit processor (prototyping in VHDL, later will implement in hardware). Initial assembler...
    51 views0 comments
    Building a 16-bit CPU on an Arty Z7-20
    rehsd
    • Jun 24
    • 6 min
    16-bit CPU

    Building a 16-bit CPU on an Arty Z7-20

    I am hoping to learn more about processors by building a 16-bit processor. I previously built an 8-bit processor based on Ben Eater's...
    175 views2 comments
    16-Bit Processor (Approach to Bus and Modules)
    rehsd
    • Jun 22
    • 2 min
    16-bit CPU

    16-Bit Processor (Approach to Bus and Modules)

    I have previously built an 8-bit processor (my 8-bit) using Ben Eater's video series. Since then, I have been spending time on 6502 and...
    158 views0 comments
    Eater 8-bit CPU Emulator for my 65816 System
    rehsd
    • Jun 20
    • 1 min
    8-bit CPU

    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...
    41 views0 comments
    65816 System - June 2022 General Update
    rehsd
    • Jun 17
    • 2 min
    65816

    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...
    101 views0 comments
    VIA Timer for Background Tasks, an NES Controller, and a Debug Screen
    rehsd
    • Jun 15
    • 0 min
    65816

    VIA Timer for Background Tasks, an NES Controller, and a Debug Screen

    24 views0 comments
    480x320 Debug LCD for 65816 System
    rehsd
    • Jun 12
    • 1 min
    65816

    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....
    173 views0 comments
    65816 - Cached sprites, a joystick, and Mario enters the scene.
    rehsd
    • Jun 9
    • 1 min

    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...
    9 views0 comments
    65816 Sound Card Substantially Complete!
    rehsd
    • May 30
    • 1 min
    Audio

    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...
    106 views0 comments
    Creating New Music for My 65816 Sound Card
    rehsd
    • May 16
    • 2 min
    Audio

    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...
    52 views0 comments
    65816 Sound Card: First Song Playback from SD Card (SPI) & Updated Output Schematic
    rehsd
    • May 14
    • 2 min
    Audio

    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...
    84 views0 comments
    Arduino-controlled Programmable Sound Generator, with a Windows Interface
    rehsd
    • May 7
    • 2 min
    Audio

    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...
    399 views0 comments
    65816 Sound Card: First Song Playback from Onboard Media ROM
    rehsd
    • May 6
    • 2 min
    Audio

    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....
    32 views0 comments
    Eater 6502+PS2+VGA PCB - Building Your Own
    rehsd
    • May 5
    • 1 min
    6502

    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...
    216 views0 comments
    65816 Motherboard - Building Your Own
    rehsd
    • May 4
    • 3 min
    65816

    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...
    321 views0 comments
    Emulator^2 -- Sound Card Emulator
    rehsd
    • Apr 30
    • 1 min
    Audio

    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...
    26 views0 comments
    1
    2345

    © 2022 rehsd.

    Email: rehsd.info@gmail.com