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PUSH
Push registers onto a full descending stack.
Syntax
PUSH{condreglist
where:
condis an optional condition code.
reglistis a non-empty list of registers, enclosed in braces. It can contain register ranges. It must be comma separated if it contains more than one register or register range.
Operation
PUSH is a synonym for STMDB
sp!, reglist. PUSH is the
preferred mnemonic.
Note
STMFD is a synonym of STMDB.Registers are stored on the stack in numerical order, with the lowest numbered register at the lowest address.
T32 instructions
The following restriction applies to the 16-bit PUSH instruction:
reglist
The following restrictions apply to the 32-bit PUSH instruction:
reglistreglist
Restrictions on reglist in A32 instructions
The A32 PUSH instruction can have SP and PC in
the reglist but the instruction that includes SP or PC in
the reglist is deprecated.
Examples
PUSH {r0,r4-r7}
PUSH {r2,lr}