Some undocumented instruction updates

docs/x86/ops/AAA/pcjs/opAAA.js

@@ -0,0 +1,26 @@
+/**
+ * op=0x37 (AAA)
+ *
+ * @this {X86CPU}
+ */
+X86.opAAA = function()
+{
+    var CF, AF;
+    var AL = this.regEAX & 0xff;
+    var AH = (this.regEAX >> 8) & 0xff;
+    if ((AL & 0xf) > 9 || this.getAF()) {
+        AL += 6;
+        /*
+         * Simulate the fact that the 80286 and higher add 6 to AX rather than AL.
+         */
+        if (this.model >= X86.MODEL_80286 && AL > 0xff) AH++;
+        AH++;
+        CF = AF = 1;
+    } else {
+        CF = AF = 0;
+    }
+    this.regEAX = (this.regEAX & ~0xffff) | (((AH << 8) | AL) & 0xff0f);
+    if (CF) this.setCF(); else this.clearCF();
+    if (AF) this.setAF(); else this.clearAF();
+    this.nStepCycles -= this.cycleCounts.nOpCyclesAAA;
+};