User`s guide

+Table A-1. (continued)
Offset RW/RO Definition
35 - 36 RO Reserved for system use.
37 RW Output delimiter character. The default output delim-
iter character is $, but you can change this value by
using the BDOS Function 110, Get/Set Output Delimiter.
38 RW List Output Flag. If this byte is set to 0, console output
is not echoed to the list device. If this byte is set to 1
console output is echoed to the list device.
39 - 3B RO Reserved for system use.
3C - 3D RO Current DMA Address. This address can be set by BDOS
Function 26 (Set DMA Address). The CCP initializes
this value to 0080H. BDOS Function 13, Reset Disk
System, also sets the DMA address to 0080H.
3E RO Current Disk. This byte contains the currently selected
default disk number. This value ranges from 0-15 cor-
responding to drives A-P, respectively. BDOS Function
25, Return Current Disk, can be used to determine the
current disk value.
3F - 43 RO Reserved for system use.
44 RO Current User Number. This byte contains the current
user number. This value ranges from 0-15. BDOS Func-
tion 32, Set/Get User Code, can change or interrogate
the currently active user number.
45 - 49 RO Reserved for system use.
4A RW BDOS Multi-Sector Count. This field is set by BDOS
Function 44,, Set Multi-Sector Count.
A-4
Appendix A System Control Block CP/M 3 Programmer's Guide