Tool/software: TI C/C++ Compiler
Hi RI Experts,
I am using memcpy_t2.asm file from the Ti Library.
In start of the function says stack usage is zero, but inside the code it uses PUSH and POP instructions.
I did not understand how stack usage is zero here, can you please help me how stack is zero here.
__TI_C$MEMCPY: .asmfunc stack_usage(0)
_ovr16: PUSH {r4 - r6} ; COPYING 16 BYTES OR MORE.
SUBS r2, #16 ;
_lp16: LDMIA r1!, {r3 - r6} ;
STMIA r0!, {r3 - r6} ;
SUBS r2, #16 ;
BCS _lp16 ;
POP {r4 - r6} ; RESTORE THE SAVED REGISTERS AND
ADDS r2, #16 ; CONTINUE THE COPY IF THE REMAINDER
BEQ _ret_ ; IS NONZERO.6170.memcpy_t2.asm
