mirror of https://github.com/tailix/libkernaux.git
66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
#ifndef KERNAUX_INCLUDED_ASM_I386
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#define KERNAUX_INCLUDED_ASM_I386
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <kernaux/arch/i386.h>
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inline static uint8_t kernaux_asm_i386_inportb(uint16_t port);
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inline static uint16_t kernaux_asm_i386_inportw(uint16_t port);
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inline static uint32_t kernaux_asm_i386_inportd(uint16_t port);
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inline static void kernaux_asm_i386_outportb(uint16_t port, uint8_t value);
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inline static void kernaux_asm_i386_outportw(uint16_t port, uint16_t value);
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inline static void kernaux_asm_i386_outportd(uint16_t port, uint32_t value);
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uint32_t kernaux_asm_i386_read_cr0();
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uint32_t kernaux_asm_i386_read_cr4();
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void kernaux_asm_i386_write_cr0(volatile uint32_t value);
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void kernaux_asm_i386_write_cr3(volatile uint32_t value);
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void kernaux_asm_i386_write_cr4(volatile uint32_t value);
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uint8_t kernaux_asm_i386_inportb(const uint16_t port)
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{
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register uint8_t result;
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__asm__ volatile("inb %1, %0" : "=a" (result) : "dN" (port));
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return result;
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}
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uint16_t kernaux_asm_i386_inportw(const uint16_t port)
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{
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register uint16_t result;
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__asm__ volatile("inw %1, %0" : "=a" (result) : "dN" (port));
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return result;
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}
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uint32_t kernaux_asm_i386_inportd(const uint16_t port)
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{
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register uint32_t result;
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__asm__ volatile("inl %1, %0" : "=a" (result) : "dN" (port));
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return result;
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}
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void kernaux_asm_i386_outportb(const uint16_t port, const uint8_t value)
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{
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__asm__ volatile("outb %1, %0" : : "dN" (port), "a" (value));
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}
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void kernaux_asm_i386_outportw(const uint16_t port, const uint16_t value)
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{
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__asm__ volatile("outw %1, %0" : : "dN" (port), "a" (value));
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}
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void kernaux_asm_i386_outportd(const uint16_t port, const uint32_t value)
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{
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__asm__ volatile("outl %1, %0" : : "dN" (port), "a" (value));
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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