Source code of Windows XP (NT5)
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;******************************************************************************;; (C) Copyright MICROSOFT Corp., 1989-1990;; Title: sysinfo.inc - structure & equates for INT 15h service 0C0h;; Version: 1.00;; Date: 28-Mar-1989;; Author: RAP;;------------------------------------------------------------------------------;; Change log:;; DATE REV DESCRIPTION; ----------- --- -----------------------------------------------------------; 28-Mar-1989 RAP;;==============================================================================
; System Descriptor Structure returned from INT 15h, service C0h
SysDescStruc STRUCSD_len dw ?SD_model db ?SD_submodel db ?SD_ROM_rev db ?SD_feature1 db ?SD_feature2 db ?SD_feature3 db ?SD_feature4 db ?SD_feature5 db ?SysDescStruc ENDS
; Feature byte 1 bits assignments:
SF1_FD_uses_DMA3 = 10000000bSF1_FD_uses_DMA3_bit = 7SF1_PIC_2_present = 01000000bSF1_PIC_2_present_bit = 6SF1_RealTimeClock = 00100000bSF1_RealTimeClock_bit = 5SF1_INT15s_called = 00010000bSF1_INT15s_called_bit = 4SF1_ExtEventWait = 00001000bSF1_ExtEventWait_bit = 3SF1_EBIOS_allocated = 00000100bSF1_EBIOS_allocated_bit = 2SF1_MicroChnPresent = 00000010bSF1_MicroChnPresent_bit = 1
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