Write assembly language code for all type of unconditional program flow control instructions.

;Write assembly language code for all type of unconditional program flow control instructions.
;************************unconditional branch*****************************************
;Table 1: branch instructions with ranges
;==============================================================================
;Branch range           Available instruction                                        
;==============================================================================
;Under +/–254 bytes     B label                                                        
;                       B<cond> label                                                
;Under +/–2 KB          B label                                                            
;Under +/–16 MB         BL label, BX LR                                                    
;Over +/–16 MB          LDR R0, =label    ; Load the address value of label in R0        
;                       BX R0; Branch to address pointed to by R0, or                
;                       BLX R0; Branch to address pointed to by R0 and update LR    
;==============================================================================
        TTL transfer
        AREA Myprog, CODE, READONLY
ENTRY
        EXPORT main
main

        B LOAD_R2        ; B to the label
load_return

;Branch and link with updated value of LR = R14
        BL LOAD_ADD1        ;branch and updated PC link to the LR(R14), return to the next instruction
;***************************by-pass subroutine***************************
LOOP17    B done
;*****************sub-routins********************************************
LOAD_R2
        MOVS R2,#0X04
        LDR R0,=load_return ; psudo load value of label into the R0 for BX instruction
        BX R0                ; unconditional return through branch and exchange

;loop inside the loop
;use of BLX and BL with <Rm>
LOAD_ADD1
        MOV R1,R14            ;Storing the LR(R14) value into R1 for further use
        LDR R2,=load        
        BLX R2                ;Jump to the PC where R2 is pointing and update LR with new value
        LDR R3,=add2
        BLX R3                ;Jump to the PC where R3 is pointing and update LR with new value
        BX R1                ;Return from original location/ return to the line BL LOAD_ADD1
;load subroutine        
load    LDR R6,=0x034        
        LDR R7,=0x235
        BX LR                ; return to the line next to BLX R2
;add subroutine        
add2    ADDS R6, R7, R6
        BX LR                  ; return to the line next to BLX R3
;*****************end of subroutine****************************************
done
        SWI &11
        END