=> R1 = buffer number, bit 31 set for block remove
R9 = &15
V flag set if examine only
clear to remove data from buffer
If single byte examine:
<= R0 = next byte that will be removed
R1 preserved
R2 corrupt
C flag set if buffer is empty
If single byte remove:
<= R0 corrupt
R1 preserved
R2 = byte removed
C flag set if buffer was empty on entry
If block remove/examine :
R2 = pointer to buffer
R3 = length of buffer
<= R0 preserved
R1 preserved
R2 = pointer updated
R3 = number of bytes still to remove
C flag set if buffer was empty on entry
All characters removed from buffers are sent through this vector.
If called via OS_CallAVector then interrupts must be disabled first.
See PRM 1, page 82.
[sh-index] Back to list of manuals
|
| |
