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CPM OPERATING SYSTEMS/CPM 8000 (CPM8K)/P-CP M-Z8K SOURCES/pg/pgmaf.tex

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+.bp odd
+.cs 5
+.mt 5
+.mb 6
+.pl 66
+.ll 65
+.po 10
+.pp 5
+.hm 2
+.fm 2
+.he 
+.ft All Information Presented Here is Proprietary to Digital Research
+.ce 2
+.tc F  New Functions and Implementation Changes
+.sh
+Appendix F
+.sp
+.sh
+    New Functions and Implementation Changes
+.sp 2
+.pp 5
+CP/M-8000 has six new Basic Disk Operating System (BDOS) functions
+and additional implementation changes in the BDOS functions and
+data structures that differ from other CP/M systems. 
+.sp 2
+.ce
+.sh
+Table F-1.  New BDOS Functions
+.nf
+.sp
+.in 11
+.ll 60
+          Function                 Number
+.sp
+     Get Free Disk Space             46
+.sp
+     Chain to Program                47
+.sp
+     Flush Buffers                   48
+.sp 
+     Set Exception Vector            61
+.sp
+     Set Supervisor State            62
+.sp
+     Get/Set TPA Limits              63
+.sp 2
+.in 0
+.fi
+.tc    F.1  BDOS Function and Data Structure Changes
+.he CP/M-8000 Programmer's Guide            F.1  BDOS Function Changes
+.sh
+F.1  BDOS Function and Data Structure Changes
+.pp
+Implementation changes in CP/M-8000 BDOS functions and data structures
+are described in the following table:
+.sp 2 
+.sh
+.ce
+Table F-2.  BDOS Function Implementation Changes
+.sp
+.ll 60
+.in 5
+.nf
+   BDOS Function       Number       Implementation  
+                                        Change
+.sp
+.in 36
+.ti -32
+.fi
+Return Version Number     12    Contains the version number 2022H indicating 
+CP/M-8000 Version 1.1.
+.sp
+.ti -32
+Reset Disk System         14    Does not log in disk drive A when it resets 
+the disk system.
+.sp
+.ti -32
+Open File                 15    Opens a file only at extent 0, the base extent.
+.sp
+.ti -32
+Get Disk Parameters       31    Returns a copy of the Disk Parameter Block 
+(DPB).
+.in 0
+.fi
+.sp 2
+.in 5
+.nf
+.sh
+Table F-3.  BDOS Data Structure Implementation Changes
+.qs
+.sp
+.ll 60
+     Structure                  Implementation  
+                                    Change
+.fi
+.sp
+.in 28
+.ti -23
+Base Page              Additional information has been added.  The base page 
+is no longer located at a fixed address.  Appendix C outlines the structure 
+of the base page.
+.sp
+.ti -23
+File Control Block     The byte sequence for the Random Record Field has 
+changed.  The most significant byte (r0) is first and the least significant 
+byte (r2) is last. 
+.in 0
+.sp 2
+.tc    F.2  BDOS Functions Not Supported By CP/M-8000
+.he CP/M-8000 Programmer's Guide       F.2  Unsupported BDOS Functions
+.sh
+F.2  BDOS Functions Not Supported By CP/M-8000 
+.qs
+.pp
+The list below contains functions and commands supported by other CP/M
+systems, but that are not supported by CP/M-8000. 
+.sp 2
+.ce
+.sh
+Table F-4.  BDOS Functions Not Supported by CP/M-8000
+.qs
+.nf
+.sp
+.ll 60
+.in 7
+         BDOS Function                   Number
+.nf
+.sp
+.in 7 
+Get Address of Allocation Vector           27
+.sp
+Set DMA Base+                              51
+.sp
+Get DMA Base+                              52
+.sp
+Get Maximum Memory*                        53
+.sp
+Get Absolute Memory*                       54
+.sp
+Allocate Absolute Memory*                  55
+.sp
+Free Memory*                               56
+.sp
+Free All Memory*                           57
+.fi
+.in 7
+.sp 2
+.ti -2
++ The Z8000 microprocessor does not have a segmented 
+architecture.  Therefore, functions involving segment registers are not 
+relevant to CP/M-8000.
+.sp
+.ti -2
+* CP/M-8000 does not have memory management functions.
+.in 0
+.sp
+.mb 5
+.fm 1
+.fi
+.pp
+DDT-8000 does not support the Assemble (A) command.
+.sp 2
+.ce
+End of Appendix F
+.nx index
+