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VGA mode 06h VRAM layout?
Anyone knows the VRAM layout of video mode 06h? I know it's a monochrome mode (each bit representing a pixel, so bit value 80h is the first, ..., bit value 01h is the eighth, from left to right).
How should the VRAM (which is the real VRAM explained in my earlier posts, in the same order as mode 13h (all pixels are stored sequentially in that mode, with index 0 corresponding to pixel 0, index 1 to pixel 1 etc.)) be read in this case? Also, does mode 06h need to have a special effect on VRAM writes/reads from the CPU with bit 0 of the CRTC Mode Control Register set?
http://www.stanford.edu/class/cs140/projects/pintos/specs/freevga/vga/crtcreg.htm#17
The MAP13&MAP14 bits explained here, in this case MAP13 is activated. How does this affect the data stored in VRAM? How does it affect data read from VRAM and rendering input?
How should the VRAM (which is the real VRAM explained in my earlier posts, in the same order as mode 13h (all pixels are stored sequentially in that mode, with index 0 corresponding to pixel 0, index 1 to pixel 1 etc.)) be read in this case? Also, does mode 06h need to have a special effect on VRAM writes/reads from the CPU with bit 0 of the CRTC Mode Control Register set?
http://www.stanford.edu/class/cs140/projects/pintos/specs/freevga/vga/crtcreg.htm#17
The MAP13&MAP14 bits explained here, in this case MAP13 is activated. How does this affect the data stored in VRAM? How does it affect data read from VRAM and rendering input?
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