when the FPU or CMPU of the core checker raises an error, is it normal to have an RCCU_1 fault reported? Here you can see what is covered by RCCUs. As you can also see on picture above, there is no distinguish between instruction coming from different part of the core. ...
short getExcepFlag() { short status; __asm__( "fnstsw %0\n\t":"=m"(status):"m"(status) ); return status; } int fpu(int value) { int result = -1; for (int i = 0; i < 10; ++i) { __asm__( "fldl %0\n\t":"=m"(result):"m"(value) ); print...
short getExcepFlag() { short status; __asm__( "fnstsw %0\n\t":"=m"(status):"m"(status) ); return status; } int fpu(int value) { int result = -1; for (int i = 0; i < 10; ++i) { __asm__( "fldl %0\n\t":"=m"(result):"m"(...
/// Get the status register content of X87 FPU. short getExcepFlag() { short status; __asm__( "fnstsw %0\n\t":"=m"(status):"m"(status) ); return status; } int fpu(int value) { int result = -1; for (int i = 0; i < 10; ++i) { __asm__( "fldl %...
When implementing 80-bit FPU in my processor with the manual Intel® 64 and IA-32 Archi- tectures Software Developer’s Manual , I found a strange