Tools
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EXE filename is by mode name. All are VDC modes from VDC Mode Mania and VDC VGA Mania.
- to process it needs PPM picture in binary coded format exact resolution named "input.ppm" in EXE directory
- processing creates preview with name "result.ppm" in same folder
- PRG files are created bitmap_top.prg, bitmap_bot.prg, colour_top.prg, colour_bot.prg (non-interlaced pictures only bitmap.prg, colour.prg)
- to use with viewers in diskimage needs to rename:
	
	interlaced
	bitmap_top.prg to name-b1.prg
	bitmap_bot.prg to name-b2.prg
	colour_top.prg to name-c1.prg
	colour_bot.prg to name-c2.prg
	
	non-interlaced
	bitmap.prg to name-b.prg
	colour.prg to name-c.prg
	
	name is selected by user - viewer asks for when started
	
VBM Renderer is my own program, it creates VDC bitmaps for monochrome modes: 720x700, 800x600, VGA 400x480 and shows preview.
Needs exact size picture in PGM or PBM bitmap to start processing. Currently don't use "Save as single file" - it is not yet applied, it required only viewer and have not time yet.

In diskimage is also 80x50sys4864.bin - it needs BLOAD and start by SYS4864 - displays 80x50 interlaced text mode, after start clears screen and sets text color to dark blue (for better visibility change it to other. Warning - don't access disk by JiffyDOS commands, it outputs error and mode can hang, use only Basic 7 commands to access disk.
There is also vdc256colors.bas - only start it by RUN - it sets 640x512 pixels 8x2 color cell interlaced mode and shows 256 color palette - really it is 136 color palette for color combinations matching. Wait longer time, it is Basic program and needs more time to process.