MPLab 32bit Multiplication - Revision history

Mkwiki at 05:53, 26 September 2023

2023-09-26T05:53:52Z

2023-09-26T05:53:30Z

2023-09-26T05:52:43Z

32-bit Binary Multiplication

2023-09-26T05:51:58Z

32-bit Binary Multiplication

2023-09-26T05:49:42Z

2023-09-26T05:19:54Z

32-bit Binary Multiplication

2023-09-26T05:18:35Z

32-bit Binary Multiplication

2023-09-26T05:18:09Z

32-bit Binary Multiplication

2023-09-26T03:55:17Z

32-bit Binary Multiplication

2023-09-26T03:54:40Z

32-bit Binary Multiplication

@@ Line 121: / Line 121: @@
              AND DL, 0FH     ; Perform a bitwise AND operation with 0FH to isolate the lower 4 bits (a single hexadecimal digit)
              CMP DL, 9      ; Compare DL with 9
-             JBE L1              ; Jump to label L1 if DL is less than or equal to 9
+             JBE L1       ; Jump to label L1 if DL is less than or equal to 9
              ADD DL, 37H    ; Convert DL to the ASCII character representation of the hexadecimal digit ('A' to 'F')

@@ Line 120: / Line 120: @@
              MOV DL,BL     ; Move the lower 8 bits of EBX (BL) into DL
              AND DL, 0FH     ; Perform a bitwise AND operation with 0FH to isolate the lower 4 bits (a single hexadecimal digit)
-             CMP DL, 9     ; Compare DL with 9
+             CMP DL, 9      ; Compare DL with 9
              JBE L1              ; Jump to label L1 if DL is less than or equal to 9
              ADD DL, 37H    ; Convert DL to the ASCII character representation of the hexadecimal digit ('A' to 'F')
-             MOV AH, 02      ;Display the character on the screen
+             MOV AH, 02      ; Display the character on the screen
              INT 21H
              JMP L2
-             L1: ADD DL,30H  ;Convert DL to the ASCII character representation of the decimal digit
+             L1: ADD DL,30H    ; Convert DL to the ASCII character representation of the decimal digit
-             MOV AH,02      ;Display the character on the screen
+             MOV AH,02      ; Display the character on the screen
              INT 21H
              L2: LOOP AGAIN2

@@ Line 118: / Line 118: @@
 AGAIN2:
              ROL EBX, 4     ; Rotate the contents of EBX left by 4 bits (one hexadecimal digit)
-             MOV DL,BL      ; Move the lower 8 bits of EBX (BL) into DL
+             MOV DL,BL     ; Move the lower 8 bits of EBX (BL) into DL
              AND DL, 0FH     ; Perform a bitwise AND operation with 0FH to isolate the lower 4 bits (a single hexadecimal digit)
              CMP DL, 9     ; Compare DL with 9

@@ Line 117: / Line 117: @@
 MOV CX, 8
 AGAIN2:
-             ROL EBX, 4      ; Rotate the contents of EBX left by 4 bits (one hexadecimal digit)
+             ROL EBX, 4     ; Rotate the contents of EBX left by 4 bits (one hexadecimal digit)
              MOV DL,BL      ; Move the lower 8 bits of EBX (BL) into DL
-             AND DL, 0FH   ; Perform a bitwise AND operation with 0FH to isolate the lower 4 bits (a single hexadecimal digit)
+             AND DL, 0FH     ; Perform a bitwise AND operation with 0FH to isolate the lower 4 bits (a single hexadecimal digit)
-             CMP DL, 9        ; Compare DL with 9
+             CMP DL, 9     ; Compare DL with 9
              JBE L1              ; Jump to label L1 if DL is less than or equal to 9
              ADD DL, 37H    ; Convert DL to the ASCII character representation of the hexadecimal digit ('A' to 'F')

@@ Line 118: / Line 118: @@
 AGAIN2:
              ROL EBX, 4      ; Rotate the contents of EBX left by 4 bits (one hexadecimal digit)
-             MOV DL,BL
+             MOV DL,BL      ; Move the lower 8 bits of EBX (BL) into DL
-             AND DL, 0FH
+             AND DL, 0FH   ; Perform a bitwise AND operation with 0FH to isolate the lower 4 bits (a single hexadecimal digit)
-             CMP DL, 9
+             CMP DL, 9        ; Compare DL with 9
-             JBE L1
+             JBE L1              ; Jump to label L1 if DL is less than or equal to 9
-             ADD DL, 37H
+             ADD DL, 37H    ; Convert DL to the ASCII character representation of the hexadecimal digit ('A' to 'F')
              MOV AH, 02
-             INT 21H
+             MOV AH, 02      ;Display the character on the screen
              JMP L2
              L1: ADD DL,30H
-             MOV AH,02
+             L1: ADD DL,30H  ;Convert DL to the ASCII character representation of the decimal digit
              INT 21H
              L2: LOOP AGAIN2
@@ Line 137: / Line 139: @@
               ROL EBX, 4
               MOV DL,BL
-              AND DL, 0FH ; to o/p the result
+              AND DL, 0FH
               CMP DL,9
               JBE L3

@@ Line 107: / Line 107: @@
 MOV PROD2,EAX      ; moves the low 32 bits of the result (from the EAX register) into the memory location labeled as PROD2.
 </pre>
-</pre>
+<pre>
 ;Display the product
 MOV AH,09

@@ Line 106: / Line 106: @@
 MOV PROD1,EDX      ; moves the high 32 bits of the result (from the EDX register) into the memory location labeled as PROD1.
 MOV PROD2,EAX      ; moves the low 32 bits of the result (from the EAX register) into the memory location labeled as PROD2.
+</pre>
 MOV AH,09
 MOV DX,OFFSET msg2
 INT 21H
 MOV EBX, PROD1