[netwatch.git] / netwatch / pagingstub-asm.s


.globl set_cr0

set_cr0:
  mov 4(%esp), %eax                     # Load argument
  movl %eax, %cr0                       # Set CR0
  pushw %cs                             # Push 16 bits of %CS
  pushl $set_cr0_cont                   # Push 32 bits of %EIP
  ljmp *(%esp)                          # "Far jump" (both %CS and %EIP from stack)
set_cr0_cont:                           # Hey, here we are!
  addl $6, %esp                         # Un-do 48 bits of pushing
  ret


.globl ps_switch_stack
ps_switch_stack:
  mov 4(%esp), %eax
  mov 8(%esp), %esp   
  call *%eax
  rsm
Commit	Line	Data
9e2a82e4 JP	1
	2	.globl set_cr0
	3
	4	set_cr0:
	5	mov 4(%esp), %eax # Load argument
	6	movl %eax, %cr0 # Set CR0
	7	pushw %cs # Push 16 bits of %CS
	8	pushl $set_cr0_cont # Push 32 bits of %EIP
	9	ljmp *(%esp) # "Far jump" (both %CS and %EIP from stack)
	10	set_cr0_cont: # Hey, here we are!
	11	addl $6, %esp # Un-do 48 bits of pushing
	12	ret
	13
8e404e68 JP	14
	15	.globl ps_switch_stack
	16	ps_switch_stack:
	17	mov 4(%esp), %eax
	18	mov 8(%esp), %esp
	19	call *%eax
	20	rsm