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  • ARM7 Programming question!

    Hi

    I had a doubt about programming the arm7. In which scenario I should use explicitly Assembly language instructions while programming.

    Thanks

  • Delay Subroutine LPC2148 Assembly

    Hi Experts,

    I have just started with ARM assembly, I have written a program in assembly for toggling GPIO. The issue that I am facing is that the code works when I use several "nop" in place of "bl delay". The code goes below:

    .equ IODIR0…

  • how pc is updated during execution of SWI and any simple instruction like mov R1,R15?

    when swi instruction is executed at that time it is said that pc is not updated yet so it is pointing to instruction next to swi instruction for example

    addr         code

    0x0000     swi 100
    0x0004    mov r1,r2
    0x0008    mov r2,r3


    so in this code when swi instruction…