DOS_READ_BYTE
Read byte from a file, check for soft-EOF
Table of Contents
| Function |
Address | Description |
| DOS_READ_BYTE |
0118 | Read byte from a file, check for soft-EOF |
Synopsys
Read a byte from a file, advancing the file pointer in the process.
It tests for a soft EOF (0x1A) but it is possible to read past this.
Reading to the hard EOF will return an error.
Entry Parameters
| Register |
Content |
| B |
File number 0…15 |
Exit Parameters
- If OK - not soft-EOF (0x1A)
- Carry true
- Zero false
- A corrupt
- C Byte read
- If OK - soft-EOF (0x1A)
- Carry true
- Zero true
- A corrupt
- C Byte read
- Otherwise:
- Carry false
- A = Error code
- C corrupt
- Always:
- BC DE HL IX corrupt, all other registers preserved.