Assembler Compiler - Step by Step

Assembly Code Editor

Execution Speed: Step: 0

; Print "iqbal" step by step
; Watch each instruction execute

START:
    MOV A, 1          ; System call for output
    MOV B, WELCOME    ; Address of welcome message
    INT 0x10          ; Print welcome message
    
    MOV A, 1          ; System call for output
    MOV B, MY_NAME    ; Address of my name
    INT 0x10          ; Print my name
    
    MOV A, 1          ; System call for output
    MOV B, NEWLINE    ; Address of newline
    INT 0x10          ; Print newline
    
    ; Simple calculation
    MOV A, 10         ; Load 10
    MOV B, 5          ; Load 5
    ADD A, B          ; A = 15
    MOV [100], A      ; Store at address 100
    
    ; Another calculation
    MOV C, 20         ; Load 20
    MOV D, 3          ; Load 3
    MUL C, D          ; C = 60
    MOV [101], C      ; Store at address 101
    
    ; Compare values
    MOV A, [100]      ; Load from address 100
    MOV B, [101]      ; Load from address 101
    CMP A, B          ; Compare values
    
    ; Conditional jump
    JE EQUAL          ; Jump if equal
    JNE NOT_EQUAL     ; Jump if not equal

EQUAL:
    MOV A, 1
    MOV B, EQ_MSG
    INT 0x10
    JMP DONE

NOT_EQUAL:
    MOV A, 1
    MOV B, NE_MSG
    INT 0x10
    JMP DONE

DONE:
    MOV A, 1
    MOV B, END_MSG
    INT 0x10
    HLT

WELCOME:
    DB "Step-by-Step Execution:", 0
MY_NAME:
    DB "iqbal", 0
NEWLINE:
    DB 10, 0
EQ_MSG:
    DB "Values are equal", 0
NE_MSG:
    DB "Values are not equal", 0
END_MSG:
    DB "Program completed!", 0

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