A dir command on a PAL Amiga, caught on 36 channels of logic analyzer and followed from the first flux transition to the filenames coming back.
Layout 1
Dataflyer 500 BUSS PAL validation results
Background As some of you may know, I’ve been working for awhile reverse engineering a DataFlyer 500 SCSI HDD controller from the 1990s. While I’ve had a working GAL replacement for the PAL for some time, I...
Building a replacement Amiga 500 power supply
Intro If you’re into retro computing, you probably know the Commodore Amiga 500—a beloved classic with surprisingly capable hardware for its time. But like many vintage systems, the original power supply is often...
Layout 2
Inside Paula’s Floppy Controller, Part I
A 52 page functional analysis of the floppy controller inside the Amiga's Paula chip.
Dataflyer 500 BUSS PAL validation results
Background As some of you may know, I’ve been working for awhile reverse engineering a DataFlyer 500 SCSI HDD controller from the 1990s. While I’ve had a working GAL replacement for the PAL for some time, I...
Building a replacement Amiga 500 power supply
Intro If you’re into retro computing, you probably know the Commodore Amiga 500—a beloved classic with surprisingly capable hardware for its time. But like many vintage systems, the original power supply is often...
Layout 3
Inside Paula’s Floppy Controller, Part I
A 52 page functional analysis of the floppy controller inside the Amiga's Paula chip.
Hands-Free Debugging: Reviewing Gisler Precision’s Probe Holders
Disclaimer: While I purchased these myself at full price, Gisler did pay for shipping. This is my own opinion. If you’ve ever tried to hold multiple scope probes steady during debugging, you know how frustrating...
Validating my dataflyer BUSS PAL replacement GAL
As some of you that have been following my reverse engineering efforts over the last few years, one of the tasks I took on was reverse engineering the BUSS PAL TIBPAL16L8-25 present in on the Expansion Systems Dataflyer...
Layout 4
Dataflyer 500 BUSS PAL validation results
Background As some of you may know, I’ve been working for awhile reverse engineering a DataFlyer 500 SCSI HDD controller from the 1990s. While I’ve had a working GAL replacement for the PAL for some time, I...
Layout 5
Inside Paula’s Floppy Controller, Part I
A 52 page functional analysis of the floppy controller inside the Amiga's Paula chip.
Hands-Free Debugging: Reviewing Gisler Precision’s Probe Holders
Disclaimer: While I purchased these myself at full price, Gisler did pay for shipping. This is my own opinion. If you’ve ever tried to hold multiple scope probes steady during debugging, you know how frustrating...
Layout 6
From Flux to Filenames: 335ms Inside Paula
A dir command on a PAL Amiga, caught on 36 channels of logic analyzer and followed from the first flux transition to the filenames coming back.
Dataflyer 500 BUSS PAL validation results
Background As some of you may know, I’ve been working for awhile reverse engineering a DataFlyer 500 SCSI HDD controller from the 1990s. While I’ve had a working GAL replacement for the PAL for some time, I...
Building a replacement Amiga 500 power supply
Intro If you’re into retro computing, you probably know the Commodore Amiga 500—a beloved classic with surprisingly capable hardware for its time. But like many vintage systems, the original power supply is often...
Layout 7
Dataflyer 500 BUSS PAL validation results
Background As some of you may know, I’ve been working for awhile reverse engineering a DataFlyer 500 SCSI HDD controller from the 1990s. While I’ve had a working GAL replacement for the PAL for some time, I...
Layout 8
Inside Paula’s Floppy Controller, Part I
A 52 page functional analysis of the floppy controller inside the Amiga's Paula chip.
Building a replacement Amiga 500 power supply
Intro If you’re into retro computing, you probably know the Commodore Amiga 500—a beloved classic with surprisingly capable hardware for its time. But like many vintage systems, the original power supply is often...
Layout 9
Inside Paula’s Floppy Controller, Part I
A 52 page functional analysis of the floppy controller inside the Amiga's Paula chip.
Hands-Free Debugging: Reviewing Gisler Precision’s Probe Holders
Disclaimer: While I purchased these myself at full price, Gisler did pay for shipping. This is my own opinion. If you’ve ever tried to hold multiple scope probes steady during debugging, you know how frustrating...
Layout 10
Layout 11
From Flux to Filenames: 335ms Inside Paula
A dir command on a PAL Amiga, caught on 36 channels of logic analyzer and followed from the first flux transition to the filenames coming back.
Inside Paula’s Floppy Controller, Part I
A 52 page functional analysis of the floppy controller inside the Amiga's Paula chip.
Dataflyer 500 BUSS PAL validation results
Background As some of you may know, I’ve been working for awhile reverse engineering a DataFlyer 500 SCSI HDD controller from the 1990s. While I’ve had a working GAL replacement for the PAL for some time, I...
Hands-Free Debugging: Reviewing Gisler Precision’s Probe Holders
Disclaimer: While I purchased these myself at full price, Gisler did pay for shipping. This is my own opinion. If you’ve ever tried to hold multiple scope probes steady during debugging, you know how frustrating...
Building a replacement Amiga 500 power supply
Intro If you’re into retro computing, you probably know the Commodore Amiga 500—a beloved classic with surprisingly capable hardware for its time. But like many vintage systems, the original power supply is often...
Validating my dataflyer BUSS PAL replacement GAL
As some of you that have been following my reverse engineering efforts over the last few years, one of the tasks I took on was reverse engineering the BUSS PAL TIBPAL16L8-25 present in on the Expansion Systems Dataflyer...
Layout 12
Inside Paula’s Floppy Controller, Part I
A 52 page functional analysis of the floppy controller inside the Amiga's Paula chip.
Dataflyer 500 BUSS PAL validation results
Background As some of you may know, I’ve been working for awhile reverse engineering a DataFlyer 500 SCSI HDD controller from the 1990s. While I’ve had a working GAL replacement for the PAL for some time, I...
Hands-Free Debugging: Reviewing Gisler Precision’s Probe Holders
Disclaimer: While I purchased these myself at full price, Gisler did pay for shipping. This is my own opinion. If you’ve ever tried to hold multiple scope probes steady during debugging, you know how frustrating...
Building a replacement Amiga 500 power supply
Intro If you’re into retro computing, you probably know the Commodore Amiga 500—a beloved classic with surprisingly capable hardware for its time. But like many vintage systems, the original power supply is often...
