Rewrote the disc sector poller again for simplified code and more accuracy;

Floppy formats are now accurately timed and also more accurately implemented;
Applied all mainline PCem commits.

src/x87_ops_arith.h

@@ -1,6 +1,3 @@
-/* Copyright holders: Sarah Walker, leilei
-   see COPYING for more details
-*/
 #define opFPU(name, optype, a_size, load_var, get, use_var)     \
 static int opFADD ## name ## _a ## a_size(uint32_t fetchdat)    \
 {                                                               \
@@ -186,7 +183,7 @@ static int opFUCOMPP(uint32_t fetchdat)
 {
         FP_ENTER();
         cpu_state.pc++;
-        if (fplog) pclog("FUCOMPP\n", easeg, eaaddr);
+        if (fplog) pclog("FUCOMPP\n", easeg, cpu_state.eaaddr);
         npxs &= ~(C0|C2|C3);
         npxs |= x87_ucompare(ST(0), ST(1));
         x87_pop();