216 lines
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216 lines
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<TITLE>Int 15/AH=02h
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Int 15/AH=02h - VMiX - sys_memreq - MEMORY OBJECT MANAGER -
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AH = 02h
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STACK: WORD object ID of requestor
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DWORD pointer to ASCIZ name of requested method
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assign allocate low memory block
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assign extended allocate extended memory pages
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assign gdt allocate GDT selector
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paged allocate low paged memory
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paged extended alllocate extended memory pages
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deassign free memory block
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deassign gdt free GDT selector
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<h2>Int 15/AH=02h
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<h3><font color=#C00040>VMiX - sys_memreq - MEMORY OBJECT MANAGER</font></h3>
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<PRE>
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AH = 02h.
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<p><b>STACK:</b><br>WORD object ID of requestor
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DWORD pointer to ASCIZ name of requested method
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"assign" allocate low memory block
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"assign extended" allocate extended memory pages
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"assign gdt" allocate GDT selector
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"paged" allocate low paged memory
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"paged extended" alllocate extended memory pages
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"deassign" free memory block
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"deassign gdt" free GDT selector
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"getvpage" get physical address for virtual page
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"setvpage" set physical address for virtual page
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"info" get VMiX memory usage info block
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"move" move contents of 32-bit memory
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"newmcb" make new DOS memory control block
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"owner" get process ID of MCB or PSP owner
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"umb" allocate upper memory block
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"video" toggle system use of video memory and get stat
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---if "assign"---
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WORD number of objects
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WORD size in bytes (multiple of 512 bytes)
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---if "assign extended"---
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WORD number of objects
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WORD size in bytes (multiple of 4K)
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---if "assign gdt"---
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WORD access type (low byte)
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WORD segment size in paragraphs
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DWORD pointer to start of physical segment
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---if "paged"---
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WORD number of 512-byte pages
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---if "paged extended"
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WORD number of 4K pages
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---if "deassign"---
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DWORD pointer returned by previous allocation call
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---if "deassign gdt"---
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WORD GDT selector
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---if "getvpage"---
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WORD owner's process ID
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DWORD pointer to buffer for page structure (struct VPGE)
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---if "setvpage"---
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WORD owner's process ID
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DWORD pointer to new page structure (struct VPGE)
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---if "info"---
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no additional arguments
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---if "move"
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DWORD 32-bit source address
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DWORD 32-bit destination address
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WORD number of words to move
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---if "newmcb"---
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DWORD pointer to new MCB's location
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WORD size of memory block
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DWORD pointer to ASCIZ name string (max 8 chars)
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---if "owner"---
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WORD MCB or PSP segment
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---if "umb"---
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WORD size in paragraphs
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---if "video"---
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no additional arguments<br>
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<p><b>Return:</b><br>DX:AX -> memory block or VPGE struct or 0000h:0000h
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</PRE>
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<p><b>See Also:</b>
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<a href="rb-1143.htm" tppabs="http://www.ctyme.com/intr/rb-1143.htm">AH=00h"VMiX"</a> - <a href="rb-1147.htm" tppabs="http://www.ctyme.com/intr/rb-1147.htm">AH=01h"VMiX"</a>
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<p>
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<b>Category: <a href="cat-030.htm" tppabs="http://www.ctyme.com/intr/cat-030.htm">
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Other Operating Systems</a>
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- <a href="int-15.htm" tppabs="http://www.ctyme.com/intr/int-15.htm">
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Int 15h</a>
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V</a>
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