Service manual

Service Manual
Probe_Write
(SWI &C8001)
Write memory locations in the target machine
On entry
R0 = target address
R1 = block size, in bytes
R2 = source address (local machine)
R4 = options
On exit
R0 = result status
Interrupts
Interrupts may be enabled
Processor mode
SVC mode
Re-entrancy
Not re-entrant
Use
May be used to load target memory before a
subsequent Probe_Run, for memory verification with
a subsequent Probe_Read, for bus exercising or for
10 programming.
Related SWIs
Probe_Reset, Probe_Read, Probe_Run
Related vectors
None
Probe_Read
(SWI &C8002)
Read memory locations in the target machine
On entry
R0 = target address
R1 = block size (in bytes)
R2 = destination address (local machine)
R4 = options
On exit
R0 = result status
Interrupts
May be enabled
Processor mode
SVC mode
Re-entrancy
Not re-entrant
Use
To verify memory after a previous Probe_Write
operation and for reading peripheral status or ROM
content.
Related SWIs
Probe_Reset, Probe_Write, Probe_Run
Related vectors
None
5-18 Issue 2, June 1991 Part 5 - Main PCB fault diagnosis