User`s guide

Table A-1. (continued)
Offset RW/RO Definition
57 RO BDOS Flags. Bit 7 applies to banked systems only. If
bit 7 is set, then the system displays expanded error
messages. The second error line displays the function
number and FCB information. (See Section 2.3.13).
Bit 6 applies only to nonbanked systems. If bit 6 is set,
it indicates that GENCPM has specified single alloca-
tion vectors for the system. Otherwise, double alloca-
tion vectors have been defined for the system. Function
98, Free Blocks, returns temporarily allocated blocks to
free space only if bit 6 is reset.
58 - 59 RW Date in days in binary since 1 Jan 78.
5A RW Hour in BCD (2-digit Binary Coded Decimal).
5B RW Minutes in BCD.
5C RW Seconds in BCD.
5D - 5E RO Common Memory Base Address. This value is zero for
nonbanked systems and nonzero for banked systems.
5F - 63 RO Reserved for system use.
End of Appendix A
A-6
Appendix A System Control Block CP/M 3 Programmer's Guide