FPU_sub
if (FPU_sub(DEST_RM, FPU_rm, control_word) >= 0)
if (FPU_sub(REV | DEST_RM, FPU_rm, control_word) >= 0)
FPU_sub(0, FPU_rm, control_word);
FPU_sub(REV, FPU_rm, control_word);
FPU_sub(DEST_RM, FPU_rm, control_word);
FPU_sub(REV | DEST_RM, FPU_rm, control_word);
FPU_sub(LOADED | loaded_tag,
FPU_sub(REV | LOADED | loaded_tag,
extern int FPU_sub(int flags, int rm, int control_w);
st0_tag = FPU_sub(LOADED | (tmptag & 0x0f), (int)&tmp,
FPU_sub(REV | LOADED | TAG_Valid,
FPU_sub(REV | LOADED | TAG_Valid, (int)&CONST_PI2,