Avoid reallocating 64-bit register arrays on every 64-bit division

2017-02-12 22:24:06 -08:00 · 2017-02-12 22:24:06 -08:00 · 92a919c927
commit 92a919c927
parent bfab39cf5a
6 changed files with 348 additions and 341 deletions
--- a/modules/pcx86/lib/x86cpu.js
+++ b/modules/pcx86/lib/x86cpu.js
@ -1050,6 +1050,8 @@ class X86CPU extends CPU {
         */
        this.fMDSet = false;        // regMDHi and/or regMDLo are invalid unless fMDSet is true
        this.regMDLo = this.regMDHi = 0;
+        this.r64Div = [0, 0];
+        this.r64Rem = [0, 0];
        this.regXX = 0;             // for internal use only (eg, assists with ModRM helper functions)

        /*