[Mspgcc-users] Re: Register indexed CALL going wrong

[Heiko Panther]

Followup. Here's a self-contained demo of the problem. Compiles with

        msp430-gcc main.S -mmcu=msp430x133 -o main.elf

Watch it run and check that while 2(r1) contains the address of correct(),
actually wrong() is called. Tried with an M430F133 as well an M430F147.

Best,
Heiko

        .file   "main.c"
        .arch msp430x133

        .text
        .p2align 1,0
correct:
    push r14
    pop r14
    ret
    
        .p2align 1,0
wrong:
    push r15
    pop r15
    ret

        .p2align 1,0
    .global     main
        .type   main,@function
main:
    mov #0x300, r1
    sub #4, r1
    mov #correct, 2(r1)
    mov #wrong, 0(r1)
    call 2(r1)
    add #4, r1
        br      #__stop_progExec__