@------------------------------------------------------------------------------
+@ SMUSD/SMUSDX
+@------------------------------------------------------------------------------
+ smusd r3, r0, r1
+ smusdx r3, r9, r2
+ ite eq
+ smusdeq r8, r3, r2
+ smusdxne r7, r4, r3
+
+@ CHECK: smusd r3, r0, r1 @ encoding: [0x40,0xfb,0x01,0xf3]
+@ CHECK: smusdx r3, r9, r2 @ encoding: [0x49,0xfb,0x12,0xf3]
+@ CHECK: ite eq @ encoding: [0x0c,0xbf]
+@ CHECK: smusdeq r8, r3, r2 @ encoding: [0x43,0xfb,0x02,0xf8]
+@ CHECK: smusdxne r7, r4, r3 @ encoding: [0x44,0xfb,0x13,0xf7]
+
+
+@------------------------------------------------------------------------------
@ SUB (register)
@------------------------------------------------------------------------------
sub.w r5, r2, r12, rrx