ARM VERSION 1.2 - Manual (Page 322)

Directives Reference
7-40 Copyright © 2000, 2001 ARM Limited. All rights reserved. ARM DUI 0068B
7.5.7 FRAME STATE REMEMBER
The FRAME STATE REMEMBER directive saves the current information on how to calculate
the canonical frame address and locations of saved register values. You can only use it
within functions with
FUNCTION and ENDFUNC or PROC and ENDP directives.
Syntax
FRAME STATE REMEMBER
Usage
During an inline exit sequence the information about calculation of canonical frame
address and locations of saved register values can change. After the exit sequence
another branch can continue using the same information as before. Use
FRAME STATE
REMEMBER to preserve this information, and FRAME STATE RESTORE to restore it.
These directives can be nested. Each FRAME STATE RESTORE directive must have a
corresponding FRAME STATE REMEMBER directive. See:
• FRAME STATE RESTORE on page 7-41
• FUNCTION or PROC on page 7-42.
Example
; function code
FRAME STATE REMEMBER
; save frame state before in-line exit sequence
LDMFD sp!,{r4-r6,pc}
; no need to FRAME POP here, as control has
; transferred out of the function
FRAME STATE RESTORE
; end of exit sequence, so restore state
exitB ; code for exitB
LDMFD sp!,{r4-r6,pc}
ENDP