DOS_READ_BYTE

Categories:

• spectrum
• spectrumAPI

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.