EgaVidParmsRec
One field of the EgaSavePtrRec points to an EgaVidParmsRec. This
structure is initialized by the video system BIOS.
EgaVidParmsRec
Offset Size Contents
▀▀▀▀▀▀ ▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
+0 1 bCrtClms screen columns (e.g., 80)
+1 1 bCrtRows screen rows (e.g., 25)
+2 1 bCrtPoints height of character matrix (e.g., 14 or 8)
+3 2 wCrtLen size of video buffer, in bytes (e.g., 2000)
+5 4 abSeqRegs values for Sequencer regs 1-4 (port 3c5H)
+9 1 bMiscOutReg value of Miscellanous Output reg (port 32cH)
+0aH 25 abCrtcRegs values for CRTC regs 00-18H (port 3d5H)
+23H 20 abAttrRegs values for Attrib Ctrlr regs 00-13H (port 3c0H)
+37H 9 abGfxRegs values for Graphics Ctrlr regs 0-8 (port 3cfH)
64 size of an EgaVidParmsRec
See Also: EGA Data Areas
EGA I/O Ports
EGA
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