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Getting errors in assembly file

Priya Tiwari
Intellectual 345 points
Other Parts Discussed in Thread: OMAP-L137

Hello,

I am trying to port assembly code written in Code Sourcery to CCSv5.1. I resolved most of the errors which i am getting while doing so but

still some are there. my code is attached in this post and below are the errors which i am getting on following lines:

.if $isdefed("__thumb2__") || $isdefed("__ARM_ARCH_6M__") || $isdefed("__ARM_ARCH_6SM__")                          // illlegal mnemonic specified

.if (THUMB = 1)                                                                                                                                                                                  // illlegal mnemonic specified  & Symbol .if has already been defined

.else                                                                                                                                                  // Symbol .else has already been defined

b _start_addr                                                                                                                                     // Symbol .else has already been defined

.endif

 Please help to resolve these errors. I am working on OMAP-L137 in that for ARM 9 processor.

Regards,

Priya

HST-reset.asm
  • TI__Guru* 84285 points

    Most likely you need to add whitespace before ".if", ".else", etc.  The only things that can legally be in the first column are labels and comments.  Directives (".if") and mnemonics ("b") must be indented at least one space.

  • in reply to Archaeologist
    Intellectual 345 points

    Thanks, my most of the error had gone now. But still i am getting some errors in below .if conditions

    .if $isdefed("__thumb2__") || $isdefed("__ARM_ARCH_6M__") || $isdefed("__ARM_ARCH_6SM__")

    these errors are like

    1. Unexpected trailing operands.
    2. Unmatched .if directive
    3. Absolute, well defined integer value expected
    4. The following symbols are undefined: $isdefed.

    I am working on OMAP-L137 in that we are coding for ARM9 so i had selected ARM9 as my target.

    Thanks,

    Priya

  • in reply to Priya Tiwari
    TI__Guru**** 251880 points

    The assembler expression syntax does not include the logical operations || and &&.  You can use the binary operations | and & instead.  Note the binary operations do evaluate both operands in every case.  This is unlike the logical operations, where the second operand is evaluated only if the result of evaluating the first operand requires it. 

    Thanks and regards,

    -George

  • in reply to Priya Tiwari
    TI__Guru* 84285 points

    For ARM, you may need to double-up the dollar signs, as follows:

     .if $$isdefed("__thumb2__") | $$isdefed("__ARM_ARCH_6M__") | $$isdefed("__ARM_ARCH_6SM__")