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Hi, I needed to convert an asm to a C callable function. So I though the list might be interested in a template that gets the passed-in parameters off the stack and provide a return value at the end of the routine. This is for VisualDSP++ 2.0 (ADSP-218x) c prototype: int foo(int p, int q); ASM of foo: foo.asm =========================================== .SECTION/CODE program; .GLOBAL _foo; _foo: // Copy passed-in parameters off stack M5=1; // set increment I6=I4; // copy stack pointer MODIFY(I6+=M5); AX0=DM(I6+=M5); // get "P" AX1=DM(I6+=M5); // get "Q" // your asm code goes here // Follow compiler reg // usage conventions end_foo: // Function return-value set here AX1 = SR0; // return in AX1 RTS; ._foo.end: .size (_foo,._foo.end-_foo); =================================================== |
asm to a C callable function
Started by ●July 13, 2001
