UM10360 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
User manual Rev. 3 — 20 December 2013 725 of 841
NXP Semiconductors
UM10360
Chapter 34: Appendix: Cortex-M3 user guide
34.2.10.10 SVC
Supervisor Call.
34.2.10.10.1 Syntax
SVC
{cond} #imm
where:
cond is an optional condition code, see Section 34.2.3.7 “
Conditional execution”.
imm is an expression evaluating to an integer in the range 0-255 (8-bit value).
34.2.10.10.2 Operation
The
SVC
instruction causes the
SVC
exception.
imm is ignored by the processor. If required, it can be retrieved by the exception handler to
determine what service is being requested.
34.2.10.10.3 Condition flags
This instruction does not change the flags.
34.2.10.10.4 Examples
SVC 0x32 ; Supervisor Call (SVC handler can extract the immediate value
; by locating it via the stacked PC)
To Next Page
Loading...
