initial darwin
diff --git a/src/libthread/Darwin-power-asm.s b/src/libthread/Darwin-power-asm.s
new file mode 100644
index 0000000..0776b1e
--- /dev/null
+++ b/src/libthread/Darwin-power-asm.s
@@ -0,0 +1,83 @@
+/* get FPR and VR use flags with sc 0x7FF3 */
+/* get vsave with mfspr reg, 256 */
+
+.text
+.align 2
+
+.globl __setlabel
+
+__setlabel: /* xxx: instruction scheduling */
+ mflr r0
+ mfcr r5
+ mfctr r6
+ mfxer r7
+ stw r0, 0*4(r3)
+ stw r5, 1*4(r3)
+ stw r6, 2*4(r3)
+ stw r7, 3*4(r3)
+
+ stw r1, 4*4(r3)
+ stw r2, 5*4(r3)
+ li r5, 1 /* return value for gotolabel */
+ stw r5, 6*4(r3)
+
+ stw r13, (0+6)*4(r3) /* callee-save GPRs */
+ stw r14, (1+6)*4(r3) /* xxx: block move */
+ stw r15, (2+6)*4(r3)
+ stw r16, (3+6)*4(r3)
+ stw r17, (4+6)*4(r3)
+ stw r18, (5+6)*4(r3)
+ stw r19, (6+6)*4(r3)
+ stw r20, (7+6)*4(r3)
+ stw r21, (8+6)*4(r3)
+ stw r22, (9+6)*4(r3)
+ stw r23, (10+6)*4(r3)
+ stw r24, (11+6)*4(r3)
+ stw r25, (12+6)*4(r3)
+ stw r26, (13+6)*4(r3)
+ stw r27, (14+6)*4(r3)
+ stw r28, (15+6)*4(r3)
+ stw r29, (16+6)*4(r3)
+ stw r30, (17+6)*4(r3)
+ stw r31, (18+6)*4(r3)
+
+ li r3, 0 /* return */
+ blr
+
+.globl __gotolabel
+
+__gotolabel:
+ lwz r13, (0+7)*4(r3) /* callee-save GPRs */
+ lwz r14, (1+7)*4(r3) /* xxx: block move */
+ lwz r15, (2+7)*4(r3)
+ lwz r16, (3+7)*4(r3)
+ lwz r17, (4+7)*4(r3)
+ lwz r18, (5+7)*4(r3)
+ lwz r19, (6+7)*4(r3)
+ lwz r20, (7+7)*4(r3)
+ lwz r21, (8+7)*4(r3)
+ lwz r22, (9+7)*4(r3)
+ lwz r23, (10+7)*4(r3)
+ lwz r24, (11+7)*4(r3)
+ lwz r25, (12+7)*4(r3)
+ lwz r26, (13+7)*4(r3)
+ lwz r27, (14+7)*4(r3)
+ lwz r28, (15+7)*4(r3)
+ lwz r29, (16+7)*4(r3)
+ lwz r30, (17+7)*4(r3)
+ lwz r31, (18+7)*4(r3)
+
+ lwz r1, 4*4(r3)
+ lwz r2, 5*4(r3)
+
+ lwz r0, 0*4(r3)
+ mtlr r0
+ lwz r0, 1*4(r3)
+ mtcr r0 /* mtcrf 0xFF, r0 */
+ lwz r0, 2*4(r3)
+ mtctr r0
+ lwz r0, 3*4(r3)
+ mtxer r0
+
+ lwz r3, 6*4(r4)
+ blr
