MSX Diagnostocs

DIAG-01

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MSX Diagnostics is a program for basic hardware diagnosis of MSX family computers. Programmed entirely in assembly language.

(Official Release)

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28,00 €

Data sheet

Compatibility MSX1 - MSX2 - MSX2+ - MSX Turbo-R
Sound PSG
Capacity ROM 32K

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the following functionalities:

SCREEN 0
It verifies the operation of the VDP in mode 0, showing all the available characters filling the screen. You can change the text and background color among the 15 available.
SCREEN 1
Same as SCREEN 0 test, but using mode 1. In this test it is also possible to change the border color.
SCREEN 2
Use VDP mode 2 to display various tile-based images. Some of the embedded images can also be used for color and geometry adjustment of the monitor or video output. It is also possible to change the border color of the image at any time.
SCREEN 3
Use mode 3 to display several different patterns various colors. In this case you can also change the border color.
SPRITES
Using mode 2, display the maximum number of sprites allowed on MSX1 at a size of 16 × 16. This test also allows you to activate or stop the automatic movement of these sprites.
COLOR MONITOR
It shows on the screen each of the basic colors (red, green, blue), as well as white, black and a looping mode that shows all the colors of the MSX1 palette from 2 to 15, and it is also possible to modify the time waiting between changes. Useful for checking monitor color purity or adjusting composite or RGB video output.
KEYBOARD
Allows you to check the operation of all the basic keys on the keyboard. Apart from displaying a message on the screen when you press and release the key, it changes the color of the screen background and emits two different sounds, facilitating the diagnosis of the keyboard without having to look at the screen.
JOYSTICK
Verifies the operation of the two ports or of the joysticks or gamepads connected to the MSX, showing the keystrokes on the screen.
4 directions and the two buttons on the controls.
PSG
It verifies the operation of the computer's PSG (Programmable Sound Generator), being able to specify the tone and volume in any of the 3 available channels, in addition to being able to assign the noise generator to any of these channels. It is also possible to choose the frequency of the noise generator.
MIXED MODE
Test so that we can verify if our VDP has and is compatible with mixed mode (text + graphics) not documented by Texas Instruments
https://en.wikipedia.org/wiki/Texas_Instruments_TMS9918#Undocumented
Some clone VDPs do not have it in some revisions. The MSX model best known for being unsupported is Toshiba's HX-10.
SYSTEM INFO
It shows a summary of the technical characteristics of our equipment, such as the MSX model (1, 2, 2+ or Turbo-R), the installed RAM and VRAM and its location, the slot design, the installed VDP and what frequency of refresh is working and in msx2 and higher models the date and time of the internal RTC.
RAM LAYOUT
It shows a summary of the detected RAM and its distribution in the system of slots / subslots and mappers.

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MSX Diagnostocs

MSX Diagnostocs

MSX Diagnostics is a program for basic hardware diagnosis of MSX family computers. Programmed entirely in assembly language.

(Official Release)