Commodore 128 Programmer's Reference Manual page 499

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CP/M 3.0 ON THE COMMODORE 128 489
All the entry points in the BIOS jump vector are included in the C128 CP/M 3.0
BIOS.
|! Each jump address in Table 14-6 corresponds to a particular subroutine that
• I performs a specific system operation. Note that two entry points are reserved for future
versions of CP/M, and one entry point is provided for the Commodore system functions.
j—| Table 14-7 shows the five categories of system operations and the function calls
! [ that accomplish these operations.
I i OPERATION FUNCTION
] I
System BOOT, WBOOT, DEVTBL, DEVINI, DRVTBL
Initialization
Character I/O CONST, CONIN, CONOUT, LIST, AUXOUT, AUXIN, LISTST,
CONOST, AUXIST, AUXOST
Disk I/O HOME, SELDSK, SETTRK, SETSEC, SETDMA, READ, WRITE,
SECTRN, MULTIO, FLUSH
Memory Selects MOVE, SELMEM, SETBNK, XMOVE
and Moves
Clock Support TIME
Table 14-7. CP/M 3 BIOS Functions
Appendix K illustrates how to call a Commodore CP/M system function in Z80
machine language.
SYSTEM MEMORY
ORGANIZATION
i i Figure 14-1 shows the general memory organization of CP/M 3.0.
! i