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Error in assembler for MPYSPDP

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Hi,

 I have detected an error in the assembler tool of all CGT versions I tested (6.0.8, 6.1.22, 7.4.2, and 7.4.4, the latest). The error is easily shown by trying to assemble the following code (test.asm) for the C672x DSPs:

    .text
   .global _test
_test:
    NOP
   MPYSPDP.M2X A24,B27:B26,B7:B6
    .end

The command line used to assemble this piece of code is:

cl6x.exe -mv67p -c test.asm

The assembler gives the following error message:

"test.asm", ERROR!   at line 5: [E0800] Erroneous use of cross path with long operand

However, if I use this other piece of code and assemble it:

    .text
    .global _test
_test:
    NOP
    .uint 0x036b15b2
    .end

An then I use the disassembler with this command line:

dis6x.exe test.obj > test.txt

 It outputs:

00000000   00000000           NOP
00000004   036b15b2           MPYSPDP.M2X   A24,B27:B26,B7:B6

As you can see, the disassembled code is the same as the original source code. However the original code gives an error when assembling.

 Greetings.

 


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