RealView® Developer Kit Assembler Guide 6.5.7. FRAME SAVE

6.5.7. FRAME SAVE

The FRAME SAVE directive describes the location of saved register contents relative to the canonical frame address. You can only use it within functions with FUNCTION and ENDFUNC or PROC and ENDP directives.

Syntax

FRAME SAVE {reglist}, offset

where:

reglist: is a list of registers stored consecutively starting at offset from the canonical frame address. There must be at least one register in the list.

Usage

Use FRAME SAVE immediately after the callee stores registers onto the stack.

reglist can include registers which are not required for backtracing. The assembler determines which registers it needs to record in the DWARF call frame information.

Note

If your code uses a single instruction to save registers and alter the stack pointer, you can use FRAME PUSH instead of using both FRAME SAVE and FRAME ADDRESS (see FRAME PUSH).

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