From 01def11ce62fa444578d830a346b3388b6c34fb4 Mon Sep 17 00:00:00 2001 From: Michael Serrano-Miranda Date: Sun, 5 Apr 2026 00:41:26 +0000 Subject: [PATCH] Added missing return value for INT 0x10 AX=0x4F15 BL=0x00 (VESA VBE/DDC INSTALLATION CHECK / CAPABILITIES). --- ...ata Channel INSTALLATION CHECK CAPABILITIES.txt | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/source/Interrupt List/INT 10 VIDEO CPUgenerated 80286/INT 104F15BL00 VESA VBEDC Display Data Channel INSTALLATION CHECK CAPABILITIES.txt b/source/Interrupt List/INT 10 VIDEO CPUgenerated 80286/INT 104F15BL00 VESA VBEDC Display Data Channel INSTALLATION CHECK CAPABILITIES.txt index d571a7d0f..a49ff8db0 100644 --- a/source/Interrupt List/INT 10 VIDEO CPUgenerated 80286/INT 104F15BL00 VESA VBEDC Display Data Channel INSTALLATION CHECK CAPABILITIES.txt +++ b/source/Interrupt List/INT 10 VIDEO CPUgenerated 80286/INT 104F15BL00 VESA VBEDC Display Data Channel INSTALLATION CHECK CAPABILITIES.txt @@ -11,9 +11,15 @@ INT 10 - VESA VBE/DC (Display Data Channel) - INSTALLATION CHECK / CAPABILITIES ES:DI = 0:0 Return: AL = 4Fh if function supported AH = status - 00h successful - BX = ??? - 01h failed - ??? + 00h successful + 01h failed + BH = Rounded-up approximate time in seconds to transfer one EDID block. + BL = DDC Level Supported + bit 0: DDC1 supported + bit 1: DDC2 supported + bit 3: Screen blanked during transfer + CX = unchanged + ES:DI = unchanged + SeeAlso: AX=4F15h/BL=01h,AX=4F15h/BL=02h