使用8051上的汇编进行矩阵乘法？

1 回答

• -1

  mov dptr,#8001h ;start taking m,n,o,p
  mov r0,#04h ;loop variable
  mov r1,#03h ;location of ram to save
  
  ;getting values of m,n,o,p saving at 3h,4h,5h,6h registers
  acall load ;loading values
  ;comparing n,o
  mov a,04h
  cjne a,05h,no
  ;if equal write 0 at 8000h 
  acall multi
  ljmp endd
  ;if not equal write 1 at 8000h
  no:
      mov dptr,#8000h
      mov a,#01h
      movx @dptr,a
      ljmp endd
  
  multi:  
  mov dptr,#8000h
  mov a,#00h
  movx @dptr,a    
  
  ;store matrix A
  mov a,03h;get m
  mov b,04h;get n
  mul ab;m*n
  mov r0,a;no of elements in A
  mov r1,#10h;ram location for matrix
  mov dptr,#8100h;get matrix
  acall load;call load
  
  ;store matrix B
  mov a,05h;get 0
  mov b,06h;get p
  mul ab;0*p
  mov r0,a;no of elements in B
  mov r1,#20h;ram location for matrix
  mov dptr,#8200h;get matrix
  acall load;call load
  
  ;multiply A with B and store it in C
  mov 0dh,#00h
  loop1:
      mov 0eh,#00h
      loop2:
          ;C element location calc
          mov a,0dh
          mov b,06h
          mul ab
          add a,0eh
          add a,#30h
          mov 0ch,a
          mov r0,a
          mov @r0,#00h
  
          ;initilize k
          mov 0fh,#00h
          loop3:
  
              ;A element location calc
              mov a,0dh
              mov b,04h
              mul ab
              add a,0fh
              add a,#10h
              mov 0ah,a
  
              ;B element location calc
              mov a,0fh
              mov b,06h
              mul ab
              add a,0eh
              add a,#20h
              mov 0bh,a
  
              ;A*B of elements
              mov 00h,0ah
              mov a,@r0
              mov r1,0bh
              mov b,@r1
              mul ab
  
              ;c+=a*b
              mov b,a
              mov r0,0ch
              mov a,@r0
              add a,b
              mov @r0,a
  
              ;increment k and loop
              inc 0fh
              mov a,0fh
              cjne a,04h,loop3
  
          ;increment j and loop
          inc 0eh
          mov a,0eh
          cjne a,06h,loop2
  
      ;increment i and loop
      inc 0dh
      mov a,0dh
      cjne a,03h,loop1
  
  ;output MATRIX C
  mov dptr,#8300h
  mov r1,#30h
  mov a,03h
  mov b,06h
  mul ab
  mov r0,a
  
  ;output values from ram to memory no of values at r0, address of matrix in r1
  l2:
      mov a,@r1
      movx @dptr,a
      inc r1
      inc dptr
      djnz r0,l2
  
  ret
  
  ;loading values from memory to ram no of values at r0, address of ram in r1
  load:
  l1:
      movx a,@dptr
      inc dptr
      mov @r1,a
      inc r1
      djnz r0,l1
  ret 
  endd: 
  end
  

  发现我的错误并在此纠正它是最终结果

  回复于 2024-05-16T18:06:52+08:00