LTORG directive instructs the assembler to assemble the current literal pool immediately.
The assembler assembles the current literal pool at the endof every code section. The end of a code section is determined bythe
AREA directive at the beginning of thefollowing section, or the end of the assembly.
These default literal pools can sometimes be out of rangeof some
WLDR pseudo-instructions. Use
LTORG toensure that a literal pool is assembled within range.
Large programs can require several literal pools. Place
LTORG directivesafter unconditional branches or subroutine return instructions sothat the processor does not attempt to execute the constants asinstructions.
The assembler word-aligns data in literal pools.
AREA Example, CODE, READONLYstart BL func1func1 ; 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.