FSUB              395 nanojit/NativePPC.h #define FSUB(rd,ra,rb)  FPUAB(fsub, rd, ra, rb, 0)
FSUB              931 nanojit/Nativei386.h #define FSUB(d,b)   do { count_fpu(); FPUm(0xdc04, d, b);       asm_output("fsub %d(%s)",d,gpn(b)); } while(0)