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CPM OPERATING SYSTEMS/CPM 8000 (CPM8K)/P-CP M-Z8K SOURCES/sg/sys2.tex

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+
+.he
+.bp odd
+.mt 5
+.mb 6
+.pl 66
+.ll 65
+.pn 7
+.po 10
+.hm 2
+.fm 2
+.ft All Information Presented Here is Proprietary to Digital Research
+.ce 2
+.sh
+Section 2
+.sp
+.sh
+System Generation
+.sp 3
+.tc    2.1  Overview
+.sh
+2.1  Overview
+.pp
+This section describes how to build a custom version of CP/M-8000 by combining 
+your BIOS with the CCP and BDOS supplied by Digital Research to obtain a 
+CP/M-8000 operating system suitable for your specific hardware system.  
+Section 5 describes how to create a BIOS.
+.pp
+In this section, we assume that you have access to an already configured and
+executable CP/M-8000 system.  If you do not, you should first read
+Section 6, which discusses how you can make your first CP/M-8000 system
+work.  === ACTUALLY, IT MAY BE SIMPLY IMPOSSIBLE ===
+.pp
+A CP/M-8000 operating system is generated by using the linker, LD8K, to 
+link together the system modules (CCP, BDOS, and BIOS) and
+bind the system to an absolute memory location.  
+The resulting file is the configured operating system.  It is named CPM.SYS.
+.ix CP/M-8000, customizing
+.ix CP/M-8000, generating
+.ix RELOC utility
+.ix CPM.SYS, creating
+.ix memory location, absolute
+.sp 2
+.tc    2.2  Creating CPM.SYS
+.sh
+2.2  Creating CPM.SYS
+.he CP/M-8000 System Guide                       2.2  Creating CPM.SYS 
+.pp
+The CCP and BDOS for CP/M-8000 are distributed in a library file named
+CPMLIB.  You must link your BIOS with CPMLIB using the following command:
+.ix CCP
+.ix BDOS
+.ix CPMLIB
+.ix LD8K command
+.sp 
+.in 8
+A>\c
+.sh
+=== NEED COMMANDS ===
+LO68 -R -UCPM -O CPM.REL CPMLIB BIOS.O
+.in 0
+.ix BIOS, compiled
+.ix CPM.REL
+.ix cold boot loader
+.sp 
+where BIOS.O is the compiled or assembled BIOS.  This creates CPM.SYS, which 
+is an absolute version of your system.  
+
+.sp 2
+.tc    2.3  Relocating Utilities
+.sh
+2.3   Relocating Utilities
+.pp
+Since the utilities all run in non-segmented mode, they do not need to
+be relocated:  they will run in whatever segments you have assigned
+for the TPA.  Note that the compiler and linker require separate
+code and data segments; all other utilities supplied with the system
+run in a single segment.
+.sp 2
+.ce
+End of Section 2
+.nx three