#272 Debugger GUI: VRAM viewer for MSX1 similar to meisei

[Manuel Bilderbeek]

Title says it all :)

Anyway, some hints from the readme:

• Tile/Sprite Viewer

Right-click on the pattern area to enter a popup menu, the tile/sprite editor
can be reached from there. Inside the editor, use the mouse to edit in Polka
fashion. Drag with the left mouse button while holding shift, and undo/redo
with Ctrl+Z/Y. Uncommonly used controls, optionally in combination with Shift
where applicable, are [E]rase, [H]orizontal flip, [V]ertical flip, [I]nvert,
[R]otate (sprite editor only), and [C]hange view colour (sprite editor only).

Saved pattern- and screen files are mostly compatible with each other.

(I guess we'd better check the program itself...)