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53 lines
1.3 KiB
53 lines
1.3 KiB
;******************************************************************************
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;
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; (C) Copyright MICROSOFT Corp., 1989-1990
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;
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; Title: sysinfo.inc - structure & equates for INT 15h service 0C0h
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;
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; Version: 1.00
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;
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; Date: 28-Mar-1989
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;
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; Author: RAP
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;
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;------------------------------------------------------------------------------
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;
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; Change log:
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;
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; DATE REV DESCRIPTION
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; ----------- --- -----------------------------------------------------------
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; 28-Mar-1989 RAP
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;
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;==============================================================================
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; System Descriptor Structure returned from INT 15h, service C0h
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SysDescStruc STRUC
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SD_len dw ?
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SD_model db ?
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SD_submodel db ?
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SD_ROM_rev db ?
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SD_feature1 db ?
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SD_feature2 db ?
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SD_feature3 db ?
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SD_feature4 db ?
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SD_feature5 db ?
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SysDescStruc ENDS
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; Feature byte 1 bits assignments:
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SF1_FD_uses_DMA3 = 10000000b
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SF1_FD_uses_DMA3_bit = 7
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SF1_PIC_2_present = 01000000b
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SF1_PIC_2_present_bit = 6
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SF1_RealTimeClock = 00100000b
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SF1_RealTimeClock_bit = 5
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SF1_INT15s_called = 00010000b
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SF1_INT15s_called_bit = 4
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SF1_ExtEventWait = 00001000b
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SF1_ExtEventWait_bit = 3
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SF1_EBIOS_allocated = 00000100b
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SF1_EBIOS_allocated_bit = 2
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SF1_MicroChnPresent = 00000010b
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SF1_MicroChnPresent_bit = 1
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