FPU_CS
printk("%04x\n", FPU_CS);
if (FPU_CS == __USER_CS) {
printk("cs selector = %04x\n", FPU_CS);
if (FPU_CS == __USER_CS) {
FPU_EIP += code_base = FPU_CS << 4;
} else if (FPU_CS == __USER_CS && FPU_DS == __USER_DS) {
} else if (FPU_CS == __KERNEL_CS) {
printk("math_emulate: %04x:%08lx\n", FPU_CS, FPU_EIP);
if ((FPU_CS & 4) != 4) { /* Must be in the LDT */
code_descriptor = FPU_get_ldt_descriptor(FPU_CS);
entry_sel_off.selector = FPU_CS;