nuclear@1: #ifndef ASMOPS_H_
nuclear@1: #define ASMOPS_H_
nuclear@1: 
nuclear@43: #include <inttypes.h>
nuclear@43: 
nuclear@42: /* general purpose registers as they are pushed by pusha */
nuclear@42: struct registers {
nuclear@42: 	uint32_t edi, esi, ebp, esp;
nuclear@42: 	uint32_t ebx, edx, ecx, eax;
nuclear@42: } __attribute__ ((packed));
nuclear@42: 
nuclear@10: #define enable_intr() asm volatile("sti")
nuclear@10: #define disable_intr() asm volatile("cli")
nuclear@10: #define halt_cpu() asm volatile("hlt")
nuclear@10: 
nuclear@54: #define push_regs() asm volatile("pusha");
nuclear@54: #define pop_regs() asm volatile("popa");
nuclear@54: 
nuclear@1: #define inb(dest, port) asm volatile( \
nuclear@1: 	"inb %1, %0\n\t" \
nuclear@2: 	: "=a" ((unsigned char)(dest)) \
nuclear@2: 	: "dN" ((unsigned short)(port)))
nuclear@1: 
nuclear@10: #define inw(dest, port) asm volatile( \
nuclear@10: 	"inw %1, %0\n\t" \
nuclear@2: 	: "=a" ((unsigned short)(dest)) \
nuclear@2: 	: "dN" ((unsigned short)(port)))
nuclear@1: 
nuclear@1: #define inl(dest, port) asm volatile( \
nuclear@1: 	"inl %1, %0\n\t" \
nuclear@2: 	: "=a" ((unsigned long)(dest)) \
nuclear@2: 	: "dN" ((unsigned short)(port)))
nuclear@1: 
nuclear@1: #define outb(src, port) asm volatile( \
nuclear@1: 	"outb %0, %1\n\t" \
nuclear@2: 	:: "a" ((unsigned char)(src)), "dN" ((unsigned short)(port)))
nuclear@1: 
nuclear@10: #define outw(src, port) asm volatile( \
nuclear@10: 	"outw %0, %1\n\t" \
nuclear@2: 	:: "a" ((unsigned short)(src)), "dN" ((unsigned short)(port)))
nuclear@1: 
nuclear@1: #define outl(src, port) asm volatile( \
nuclear@1: 	"outl %0, %1\n\t" \
nuclear@2: 	:: "a" ((unsigned long)(src)), "dN" ((unsigned short)(port)))
nuclear@1: 
nuclear@36: #define iodelay() outb(0, 0x80)
nuclear@36: 
nuclear@54: 
nuclear@1: #endif	/* ASMOPS_H_ */