System information

N
Negative bias, 6-7 Radix indicators, 3-5
Random access, 5-31, 5-32, 5-46
Random record number, 5-32
O READ, 6-23
Read Console Buffer function, 5-16
[o] parameter, 6-35 Read only, 1-20
Octal constant, 3-5 Read/only status, 1-20
ofs parameter, 6-35 Read random error codes, 5-31
On-line status, 5-19 Read Random function, 5-30
Open File function, 5-19 READ routine, 6-20
Operand field, 3-4, 3-6 Read Sequential function, 5-23
Operation field, 3-4, 3-16 Read/write, 1-20
Operators, 3-9, 3-16 READER, 6-18,21
ORG directive, 3-11 Reader Input function, 5-13
REN, 1-10
Rename file function, 5-25
P Reset Disk function, 5-18
Reset Drive function, 5-35
Page zero, 6-26 Reset state, 5-18
Patching the CP/M system, 6-3 Return Current Disk function, 5-26
Peripheral devices, 6-17 Return Log-in Vector function, 5-26
Physical devices, 1-17, 6-17 Return Version Number function, 5-18
Physical file size, 5-33 R/0, 1-20
Physical to logical device assignment, R/O attribute, 5-29
1-18, 6-19 R/O bit, 5-28
PIP devices, 1-28 R/W, 1-20
PIP parameters, 1-31
Print String function, 5-15
PRN file, 3-1 S
Program counter,4-4,4-6, 4-7, 4-11
Program tracing, 4-9 SAVE, 1-11
Prompt, 1-3 SAVE command, 4-3
Pseudo-operation, 3-10 Search for First function, 5-21
PUNCH, 6-17, 6-21 Search for Next function, 5-22
Punch Output function, 5-13 Search strings, 2-11
PUTSYS, 6-4, 6-11 Sector allocation, 6-13
Index CP/M Operating System Manual
Index-4