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Each of the following lines of code will cause a Vector 11 (F-line) trap: * Or just hang the processor because my fault handling code isn't the best in the world. (the printf's don't count.) #define MAX(a, b) a > b ? a : b static short check_floating_point(double x, float f, float a) { short n; double ab = 0; /* fails */ if (x > 0) /* fails */ printf("Yep : x > 0\n"); n = (short)f; /* fails */ n = (short) MAX(f, x); /* fails */ n = (short) MAX(n, a); /* fails */ return(n); } main() { double d; float f, a; check_floating_point(d, f, a); } All of these work with 2.8 compiler, using 68040 codes. When compiled for the 68060: g++68k -fwritable-strings -fno-rtti -fno-exceptions \ -c -g -pipe -ansi -Adebug\(on\) -D_G_NO_EXTERN_TEMPLATES \ -DRTM -mshort -m68060 -DMC68060 -DMVP40 \ -I../.././remote/include -I../.././remote/localinc \ -I../.././remote/libinc \ -I../.././remote/vcpu -I../.././remote/ppu -I../.././include/localinc \ -I../.././include/libinc \ main.c -o main.60 The code no longer works. -barto -- David Barto barto@network.ucsd.edu barto@visionpro.com >From a Marketing type: Don't give me any technical reason why something can't be done. If you really believed in the product you'd make it work.