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Why cannot the cross-assembler work on this asm code?

Robert

Hi,

I am working on assembler code with arm-linux-gnueabihf-as with a third part code project. I find that the assembler has errors:

> arm-linux-gnueabihf-as test_sp0.s

test_sp0.s: Assembler messages:

test_sp0.s:1: Error: junk at end of line, first unrecognized character is `='

test_sp0.s:3: Error: bad instruction `arm'

test_sp0.s:5: Error: bad instruction `area ||.text||,CODE,READONLY,ALIGN=2'

test_sp0.s:7: Error: bad instruction `export fl_array_m_ic32'

test_sp0.s:9: Error: bad instruction `input'

test_sp0.s:10: Error: bad instruction `r0 -p_i0_left'

test_sp0.s:11: Error: bad instruction `r1 -p_i0_right'

test_sp0.s:12: Error: bad instruction `r2 -p_i1_left'

test_sp0.s:13: Error: bad instruction `r3 -p_i1_right'

test_sp0.s:14: Error: bad instruction `sp -p_ot_left'

test_sp0.s:15: Error: bad instruction `sp +4-p_ot_right'

test_sp0.s:16: Error: bad instruction `sp +8-count'

test_sp0.s:17: Error: bad instruction `sp +12-shift'

test_sp0.s:19: Error: bad instruction `return'

test_sp0.s:20: Error: bad instruction `n/A'

test_sp0.s:22: Error: bad instruction `global Variables Accessed'

test_sp0.s:23: Error: bad instruction `none'

test_sp0.s:24: Error: bad instruction `cortex_a8'

for the code:

                    ARM
                    AREA ||.text||, CODE, READONLY, ALIGN=2
                    EXPORT  fl_array_m_ic32

;   Input

;   r0 - p_i0_left
;   r1 - p_i0_right
;   r2 - p_i1_left
;   r3 - p_i1_right
;   sp - p_ot_left
;   sp + 4  - p_ot_right
;   sp + 8  - count
;   sp + 12 - shift

;

;   Return

;   N/A

;

;   Global Variables Accessed

;   None
;;;;;;;;;;;;;;;;;;;;;;;;;;;;                    IF  :DEF:CORTEX_A8

;................................................................................

fl_array_m_ic32     PROC

It is obvious that the assembler treats the comment char ';' as asm instruction. I used other compiler before, but not arm-linux-gnueabihf-as. From the asm code format, do you think what assembler can work on it? or are there some switches with arm-linux-gnueabihf-as to work on this asm code?

Thanks,

Parents
  • 0

    Hello,

    your assembler syntax seems to be one of the armasm. As you will use GNU assembler, you should follow the GNU syntax. It will be more simple than the armasm.
    The character which specifies is not ';' but '@'.

    The label should be followed by a charater ':'.
    Also your code could be modified as the following.

        .arm
    .text
    .align 2
    .globl fl_array_m_ic32
@ Input
@ 
@
@--------------------------------------
fl_array_m_ic32:

    Best regards,

    Yasuhiko Koumoto.

Reply
  • 0

    Hello,

    your assembler syntax seems to be one of the armasm. As you will use GNU assembler, you should follow the GNU syntax. It will be more simple than the armasm.
    The character which specifies is not ';' but '@'.

    The label should be followed by a charater ':'.
    Also your code could be modified as the following.

        .arm
    .text
    .align 2
    .globl fl_array_m_ic32
@ Input
@ 
@
@--------------------------------------
fl_array_m_ic32:

    Best regards,

    Yasuhiko Koumoto.

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