src/libthread/Linux-arm-asm.s

 
.globl _tas
_tas:
	mov	r3, #0xCA000000
	add	r3, r3, #0xFE0000
	add	r3, r3, #0xBA00
	add	r3, r3, #0xBE
	swp	r3, r3, [r0]
	mov	r0, r3
	mov	pc, lr

.globl getmcontext
getmcontext:
	str	r1, [r0,#4]
	str	r2, [r0,#8]
	str	r3, [r0,#12]
	str	r4, [r0,#16]
	str	r5, [r0,#20]
	str	r6, [r0,#24]
	str	r7, [r0,#28]
	str	r8, [r0,#32]
	str	r9, [r0,#36]
	str	r10, [r0,#40]
	str	r11, [r0,#44]
	str	r12, [r0,#48]
	str	r13, [r0,#52]
	str	r14, [r0,#56]
	/* store 1 as r0-to-restore */
	mov	r1, #1
	str	r1, [r0]
	/* return 0 */
	mov	r0, #0
	mov	pc, lr

.globl setmcontext
setmcontext:
	ldr	r1, [r0,#4]
	ldr	r2, [r0,#8]
	ldr	r3, [r0,#12]
	ldr	r4, [r0,#16]
	ldr	r5, [r0,#20]
	ldr	r6, [r0,#24]
	ldr	r7, [r0,#28]
	ldr	r8, [r0,#32]
	ldr	r9, [r0,#36]
	ldr	r10, [r0,#40]
	ldr	r11, [r0,#44]
	ldr	r12, [r0,#48]
	ldr	r13, [r0,#52]
	ldr	r14, [r0,#56]
	ldr	r0, [r0]
	mov	pc, lr