minix/kernel/arch/i386/vm.h
Ben Gras c078ec0331 Basic VM and other minor improvements.
Not complete, probably not fully debugged or optimized.
2008-11-19 12:26:10 +00:00

27 lines
504 B
C

.define _load_kernel_cr3
.define _last_cr3
#define LOADKERNELCR3 ;\
inc (_cr3switch) ;\
mov eax, (_kernel_cr3) ;\
cmp (_last_cr3), eax ;\
jz 9f ;\
push _load_kernel_cr3 ;\
call _level0 ;\
pop eax ;\
mov eax, (_kernel_cr3) ;\
mov (_last_cr3), eax ;\
inc (_cr3reload) ;\
9:
#define LOADCR3WITHEAX(type, newcr3) ;\
sseg inc (_cr3switch) ;\
sseg mov eax, newcr3 ;\
sseg cmp (_last_cr3), eax ;\
jz 8f ;\
mov cr3, eax ;\
sseg inc (_cr3reload) ;\
sseg mov (_last_cr3), eax ;\
8: