1.1 --- a/src/intr-asm.S	Tue Apr 05 02:09:02 2011 +0300
     1.2 +++ b/src/intr-asm.S	Wed Apr 06 07:42:44 2011 +0300
     1.3 @@ -17,6 +17,28 @@
     1.4  	lidt (lim)
     1.5  	ret
     1.6  
     1.7 +/* get_intr_state()
     1.8 + * returns 1 if interrutps are enabled, 0 if disabled */
     1.9 +	.globl get_intr_state
    1.10 +get_intr_state:
    1.11 +	pushf
    1.12 +	popl %eax
    1.13 +	shr $9, %eax  /* bit 9 of eflags is IF */
    1.14 +	andl $1, %eax
    1.15 +	ret
    1.16 +
    1.17 +/* set_intr_state(int state)
    1.18 + * enables interrupts if the argument is non-zero, disables them otherwise */
    1.19 +	.globl set_intr_state
    1.20 +set_intr_state:
    1.21 +	cmpl $0, 4(%esp)
    1.22 +	jz 0f
    1.23 +	sti
    1.24 +	ret
    1.25 +0:	cli
    1.26 +	ret
    1.27 +
    1.28 +
    1.29  /* interrupt entry with error code macro
    1.30   * this macro generates an interrupt entry point for the
    1.31   * exceptions which include error codes in the stack frame