LTORG
The LTORG
directive instructs the assembler to assemble the current literal pool immediately.
Syntax
LTORG
Usage
The assembler assembles the current literal pool at the end
of every code section. The end of a code section is determined by
the AREA
directive at the beginning of the
following section, or the end of the assembly.
These default literal pools can sometimes be out of range
of some LDR
, VLDR
,
and WLDR
pseudo-instructions. Use LTORG
to
ensure that a literal pool is assembled within range.
Large programs can require several literal pools. Place LTORG
directives
after unconditional branches or subroutine return instructions so
that the processor does not attempt to execute the constants as
instructions.
The assembler word-aligns data in literal pools.
Example
AREA Example, CODE, READONLY start BL func1 func1 ; function body ; code LDR r1,=0x55555555 ; => LDR R1, [pc, #offset to Literal Pool 1] ; code MOV pc,lr ; end function LTORG ; Literal Pool 1 contains literal &55555555. data SPACE 4200 ; Clears 4200 bytes of memory starting at current location. END ; Default literal pool is empty.