Assembler bug in CGT 4.9.6: IT instruction not ignored in ARM mode

42Bastian

Hi
the assembler does not ignore "IT" instruction while compiling for ARM mode:

From the ARM Ltd. document DDI0406C_b

When assembling to ARM code, assemblers check IT instruction syntax for validity but do not generate 
assembled instructions for them

CGT bail out.

Cheers

over 12 years ago

0 Archaeologist over 12 years ago

TI__Guru* 84285 points

Could you please post a small test case which reproduces the problem? Be sure to include the command-line options.

0 42Bastian over 12 years ago in reply to Archaeologist

Expert 1430 points

Here the example code:

	.text
	.arm
	it	EQ
	moveq	r0,#0

	.thumb
	it	EQ
	moveq	r0,#0

 >cl470 -mv 7r4 t.asm
"t.asm", ERROR!   at line 3: [E0002] Illegal mnemonic specified
                it      EQ

1 Assembly Error, No Assembly Warnings

Errors in Source - Assembler Aborted

>> Compilation failure

 >cl470 -version
TMS470 C/C++ Compiler                   v4.9.6
Build Number 1MFQK-KDADEMDK-RTARQ-WAR-ZAZE_U_Z9_W
TMS470 C/C++ Codegen                    v4.9.6
Build Number 1MFQK-KDADEMDK-RTARQ-WAR-ZAZE_U_Z9_W
TMS470 Assembler                        v4.9.6
Build Number 1MFQK-KDADEMDK-RTARQ-WAR-ZAZE_U_Z9_W

Please note: -mv a8 gives the same error.
Cheers,

0 Archaeologist over 12 years ago in reply to 42Bastian

TI__Guru* 84285 points

I have submitted SDSCM00045630 to track this issue.

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Assembler bug in CGT 4.9.6: IT instruction not ignored in ARM mode