Specifications

D:\D\inter61a\INTERRUP.A Saturday, January 08, 2011 11:31 AM
be made to find them, FFFFh will also terminate this second list
in some cases, only a "stub" VBE may be present, supporting only
AX=4F00h; this case may be assumed if the list of supported video
modes is empty (consisting of a single word of FFFFh)
Bitfields for VESA capabilities:
Bit(s) Description (Table 00078)
0 DAC can be switched into 8-bit mode
1 non-VGA controller
2 programmed DAC with blank bit (i.e. only during blanking interval)
3 (VBE v3.0) controller supports hardware stereoscopic signalling
3 controller supports VBE/AF v1.0P extensions
4 (VBE v3.0) if bit 3 set:
=0 stereo signalling via external VESA stereo connector
=1 stereo signalling via VESA EVC connector
4 (VBE/AF v1.0P) must call EnableDirectAccess to access framebuffer
5 (VBE/AF v1.0P) controller supports hardware mouse cursor
6 (VBE/AF v1.0P) controller supports hardware clipping
7 (VBE/AF v1.0P) controller supports transparent BitBLT
8-31 reserved (0)
SeeAlso: #00077,AX=4F09h
--------V-104F01-----------------------------
INT 10 - VESA SuperVGA BIOS - GET SuperVGA MODE INFORMATION
AX = 4F01h
CX = SuperVGA video mode (see #04082 for bitfields)
ES:DI -> 256-byte buffer for mode information (see #00079)
Return: AL = 4Fh if function supported
AH = status
00h successful
ES:DI buffer filled
01h failed
Desc: determine the attributes of the specified video mode
SeeAlso: AX=4F00h,AX=4F02h
Bitfields for VESA/VBE video mode number:
Bit(s) Description (Table 04082)
15 preserve display memory on mode change
14 (VBE v2.0+) use linear (flat) frame buffer
13 (VBE/AF 1.0P) VBE/AF initializes accelerator hardware
12 reserved for VBE/AF
11 (VBE v3.0) user user-specified CRTC refresh rate values
-125-
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