28 lines
504 B
C
28 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:
|
|
|