Service manual

Service Manual
Probe_Poll
(SWI &C8005)
Read status of interface hardware
On entry
N/A
On exit
R0 = result status
R1 = interface status
Flags ST_TXRDY (&10) and ST_RXRDY (&40) in R1
indicate data available from the target and target
ready to receive data respectively.
Interrupts
May be enabled
Processor mode
SVC mode
Re-entrancy
Not re-entrant
Use
To poll interface hardware and determine readiness to
accept or complete commands.
Related SWI
Probe_GetByte, Probe_PutByte, Probe_GetSlow
Probe_GetWord, Probe_PutWord
Related vectors
None
Probe_GetWord
(SWI &C8006)
Read a 32-bit word from the interface hardware
On entry
R0 = target address
On exit
R0 = result status
R1 = word read
Interrupts
May be enabled
Processor mode
SVC mode
Re-entrancy
Not re-entrant
Use
To perform low-level operations required to transfer
data for the SWIs &C8000 to &C8004.
Related SWIs
Probe_Poll, Probe_PutWord, Probe_GetWord
Probe_PutByte, Probe_GetByt, Probe_GetSlow
Related vectors
None
5-20 Issue 2, June 1991 Part 5 - Main PCB fault diagnosis