72 lines
2.6 KiB
PHP
72 lines
2.6 KiB
PHP
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; SCCSID = @(#)sysvar.asm 1.1 85/04/10
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SysInitVars STRUC
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SYSI_DPB DD ? ; DPB chain
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SYSI_SFT DD ? ; SFT chain
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SYSI_CLOCK DD ? ; CLOCK device
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SYSI_CON DD ? ; CON device
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SYSI_MAXSEC DW ? ; maximum sector size
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SYSI_BUF DD ? ; points to Hashinitvar
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SYSI_CDS DD ? ; CDS list
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SYSI_FCB DD ? ; FCB chain
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SYSI_Keep DW ? ; keep count
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SYSI_NUMIO DB ? ; Number of block devices
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SYSI_NCDS DB ? ; number of CDS's
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SYSI_DEV DD ? ; device list
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SYSI_ATTR DW ? ; null device attribute word
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SYSI_STRAT DW ? ; null device strategy entry point
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SYSI_INTER DW ? ; null device interrupt entry point
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SYSI_NAME DB 8 DUP(?) ; null device name
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SYSI_SPLICE DB 0 ; TRUE -> splicees being done
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SYSI_IBMDOS_SIZE DW ? ; DOS size in paragraphs
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SYSI_IFS_DOSCALL@ DD ? ; IFS DOS service rountine entry
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SYSI_IFS DD ? ; IFS header chain
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SYSI_BUFFERS DW ?,0 ; BUFFERS= values (m,n)
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SYSI_BOOT_DRIVE DB ? ; boot drive A=1 B=2,..
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SYSI_DWMOVE DB 0 ; 1 if 386 machine
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SYSI_EXT_MEM DW 0 ; Extended memory size in KB.
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SysInitVars ENDS
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;This is added for more information exchage between DOS, BIOS.
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;DOS will give the pointer to SysInitTable in ES:DI. - J.K. 5/29/86
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SysInitVars_Ext struc
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SYSI_InitVars DD 0 ; Points to the above structure.
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SYSI_Country_Tab DD 0 ; DOS_Country_cdpg_info
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SysInitVars_Ext ends
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;The SYSI_BUF of SysInitVars points to the follwong structure
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EMS_MAP_BUFF_SIZE EQU 12 ; EMS map buffer size
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Buffinfo STRUC
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Buff_Queue DD ? ; Head of list of buffers
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Dirty_Buff_Count DW ? ; number of dirty buffers in list
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Cache_ptr DD ? ; pointer to secondary cache
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Cache_count DW 0 ; number of secondary cache entries
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Buff_In_HMA db 0 ; flag to indicate that buffers
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; are in HMA
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Lo_Mem_Buff dd 0 ; Ptr to scratch buff in Low Mem
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; used to read/write on disks
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;smr; removal of BUFFERFLAG; IF BUFFERFLAG
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UU_EMS_FIRST_PAGE DW 0, 0
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UU_EMS_NPA640 DW 0
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;smr; removal of BUFFERFLAG; ENDIF
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UU_EMS_mode DB -1 ; no EMS = -1
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UU_EMS_handle DW ? ; EMS handle for buffers
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UU_EMS_PageFrame_Number DW -1 ; EMS page frame number
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UU_EMS_Seg_Cnt DW 1 ; EMS segment count
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UU_EMS_Page_Frame DW -1 ; EMS page frame segment address
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UU_EMS_reserved DW 0 ; EMS segment count
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;smr; removal of BUFFERFLAG; IF BUFFERFLAG
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UU_EMS_Map_Buff DB 0 ; map buffer
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;smr; removal of BUFFERFLAG; ELSE
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;smr; removal of BUFFERFLAG; EMS_Map_Buff DB 12 dup(0)
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;smr; removal of BUFFERFLAG; ENDIF
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Buffinfo ENDS
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