Files
Linux-Kernel_MiSTer/arch/x86/include/asm/processor-cyrix.h
Sorgelig e12ed6c19d v5.13.12
2021-08-22 05:38:19 +08:00

19 lines
376 B
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* NSC/Cyrix CPU indexed register access. Must be inlined instead of
* macros to ensure correct access ordering
* Access order is always 0x22 (=offset), 0x23 (=value)
*/
static inline u8 getCx86(u8 reg)
{
outb(reg, 0x22);
return inb(0x23);
}
static inline void setCx86(u8 reg, u8 data)
{
outb(reg, 0x22);
outb(data, 0x23);
}