[Speex-dev] Errors in speex lib with Blackfin
demonb at mail.ru
Tue Jan 17 01:40:35 PST 2006
I'v downloaded speex lib 18.104.22.168.
I am trying to port speex lib to Blackfin processor.
I am using VisualDSP++ 4.0.
If I am compiling source codes with using floating point everything
When I am compiling with FIXED_POINT defined everything's ok and code
works about two times faster.
But when I am defining BFIN_ASM I am getting several compiling errors
in Blackfin assembler functions.
Here they are:
1) In the inline assembler functions (blackfin asm) in every loop
there is a syntax error. May be I am wrong, but I can't understood
what is written there(and compiler too).
"I0 = %0;\n\t"
"I1 = %1;\n\t"
"L0 = 0;\n\t"
"L1 = 0;\n\t"
"LOOP tupdate%= LC0 = %3;\n\t"
^//here is the problem
^//here is the same problem
"R0.L = W[I0] || R1.L = W[I1++];\n\t"
"R1 = (A1 = R1.L*%2.L) (IS);\n\t"
"R1 >>>= 11;\n\t"
"R0.L = R0.L - R1.L;\n\t"
"W[I0++] = R0.L;\n\t"
: "a" (t), "a" (r), "d" (g), "a" (len)
: "R0", "R1", "A1", "I0", "I1", "L0", "L1"
So, I removed the signs '%=' from loops and this problems were
2)Some errors in arithmetical operations.
"R0.L = R0.L - R1.L;\n\t"//compiler error
//Need to be written (s)-saturate or (ns)-not saturate after operation
"R0.L = R0.L - R1.L(ns);\n\t"
Here is only one example. But I'v got a lot.
3)When I am trying to correct previus errors - compiler don't compile some functions with message:
gnu asm requires too much Preg registers.
So, did you compile your library in Visual DPS++? May be it;s some
problems with versions. May be I am wrong, and I don't understand
Please, clarify this questions.
demon mailto:demonb at mail.ru
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