Bug in CGT Assmbler: Does not respect --ual

42Bastian

Hi,
the assembler issues a warning and generates wrong opcodes for the following UAL syntax instructions:

   .text
  .arm
  movslo r2,r2,lsl #2
  lslslo r2,r2,#2

I compiled with:

cl470 --mv=5e --ual
cl470 --mv=7a8 --ual

Always get the warning:

"t.asm", WARNING! at line 3: [W0004] Invalid instruction modifier(s) ignored
                movslo  r2,r2,lsl #2

"t.asm", WARNING! at line 3: [W0004] Invalid instruction modifier(s) ignored
                movslo  r2,r2,lsl #2

"t.asm", WARNING! at line 4: [W0004] Invalid instruction modifier(s) ignored
                lslslo r2,r2,#2

"t.asm", WARNING! at line 4: [W0004] Invalid instruction modifier(s) ignored
                lslslo r2,r2,#2

Changing to pre-UAL syntax:


 movlos r2,r2,lsl #2

works. Cheers

over 12 years ago

0 Archaeologist over 12 years ago

TI__Guru* 84285 points

I've filed SDSCM00046351 to track this issue.

Other cases that fail:

MOVSHI R2, R2, LSL #2
MOVSHS R2, R2, LSL #2

0 42Bastian over 12 years ago in reply to Archaeologist

Expert 1430 points

in my opinion there are two issues.
For one the obvious assembler error.
But IMHO, in such case where the resulting opcode is completely different, the assembler should throw an error and not just a (easy to be overseen) warning.

Cheers

0 Archaeologist over 12 years ago in reply to 42Bastian

TI__Guru* 84285 points

Okay, I've submitted SDSCM00046363 for that aspect of the issue.

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Bug in CGT Assmbler: Does not respect --ual