BASIC ARM LPC2148 ASSEMBLY CODES-II

PROGRAM 1:

PROGRAM TO FIND FIBONACCI SERIES     

  

       area fbnc,code,readonly

entry

         mov r5,#10

         ldr r0,=0x40000000

                    mov r1,#01

                    mov r2,#00

back     add r3,r1,r2

                    str r3,[r0],#04

                    mov r2,r1

                    mov r1,r3

                    subs r5,r5,#01

                    cmp r5,#00

                    bne back

stop     b  stop

         end

PROGRAM 2:

PROGRAM TO FIND MAXIMUM OF GIVEN NUMBERS

      area max,code,readonly

entry

      ldr r0,=numbers

            mov r1,#06

            ldr r2,[r0],#04

loop  ldr r3,[r0],#04

            cmp r2,r3

            bhi next

            mov r2,r3

next  subs r1,r1,#01

           cmp r1,#00

            bne loop

stop  b  stop

    

         area max1,code

numbers dcd 0x04, 0x08, 0x15, 0x07, 0x24, 0x74, 0x18

      end

PROGRAM 3:

PROGRAM TO FIND MINIUM OF GIVEN NUMBER

      area minimum,code,readonly

Entry

      ldr r0,=numbers

            mov r1,#06

            ldr r2,[r0],#04

loop  ldr r3,[r0],#04

      cmp r2,r3

            bls next

            mov r2,r3

next  subs r1,r1,#01

      cmp r1,#00

            bne loop

stop  b  stop

    

         area minimum,code

numbers dcd 0x04, 0x08, 0x15, 0x07, 0x24, 0x74, 0x18

      end   

       

 PROGRAM 4:

PROGRAM TO FIND PRIME NUMBERS

       area prim,code,readonly

entry

main    

      mov r0,#01

            ldr r6,=0x40000000

            mov r8,#0x64

start mov r1,r0

            add r0,r0,#01

            lsr r9,r1,#01

            mov r5,r9

            mov r4,#02

            bl subb

back   cmp r3,#01

       bge prime

      

goo    subs r8,r8,#01

       cmp r8,#00

             bne start

             b stop

prime  str r1,[r6],#04

       subs r8,r8,#01

       cmp r8,#00

             bne start

             b stop

subb   mov r3,r1

loop   subs r3,r3,r4

             cmp r3,r4

             bge loop

             cmp r3,#00

             beq goo

             cmp r4,r5

             beq back

             add r4,r4,#01

             subs r9,r9,#01

             cmp r9,#00

             bgt subb

             mov pc,lr

stop   b  stop

       end

PROGRAM 5:

PROGRAM TO IMPLEMENT MULTIPLICATION OF TWO 8bit NUMBERS

          area multiplication,code,readonly

entry

    mov r0,#06

          mov r1,#02

          mul r2,r1,r0

          end

PROGRAM 6:

PROGRAM TO IMPLEMENT MULTIPLICATION OF TWO NUMBERS WITHOUT USING mul INSTRUCTION

          area multiplication,code,readonly

entry

    mov r0,#13

          mov r1,#04

loop

    add r3,r3,r0

          add r2,#01

          cmp r2,r1

          bne loop

          mov r4,r3

          end

PROGRAM 7:

PROGRAM TO SORT POSITIVE AND NEGATIVE NUMBERS

       area positive_negative,code,readonly

entry

       ldr r0,=0x40000000

             ldr r1,=0x40000038

             ldr r2,=0x40000054

       mov r3,#10

back   ldr r4,[r0],#04

             movs r5,r4,lsl#01

             movcs r6,r4;

             strcs r6,[r1],#04;negative no stored in memory location ;

             addcs r8,r8,#01;no of negative no's;          

             movcc r7,r4;

             strcc r7,[r2],#04;positive no stored in memory location;

             addcc r9,r9,#01;no of positive no's;                              

             subs r3,r3,#01

             cmp r3,#00

             bne back

stop   b stop

             end

PROGRAM 8:

PROGRAM TO DISPLAY 0-9 ON 7 SEGMENT

             area seven_segment,code,readonly

entry

main  

       mov r0,#07

             mov r4,#04

             ldr r1,=value

             mul r3,r0,r4

             add r1,r1,r3

             ldr r2,[r1]

       b stop

   

             area seven_segment,code,readonly

value  dcd 0xbf,0x86,0xbb,0x8f,0xe6,0xab,0xfb

       dcd 0x87,0xff,0xef

stop   b stop

       end