OSWORD &55

From BeebWiki
Jump to: navigation, search

OSWORD &55 (85 ) - Get bytes from file buffer DVR

XY is a buffer handle.
On entry:
 XY+0..1=number of bytes to get
 XY+2..4=file pointer to the start of the data
On exit:
 XY contains an address at which the data is found, which is
 guaranteed to stay until another get bytes call or a flush
 all blocks call.
 If the call failed, C is set and X contains a failure code.

See Also

Jgharston 13:47, 26 May 2009 (UTC)