use Z80 emulation from https://github.com/DrGoldfire/Z80.js for better performance

src/baseplatform.ts

@@ -480,7 +480,7 @@ export function cpuStateToLongString_Z80(c) {
   function decodeFlags(flags) {
     return printFlags(flags, ["S","Z",,"H",,"V","N","C"], true);
   }
-  return "PC " + hex(c.PC,4) + "  " + decodeFlags(c.AF) + "\n"
+  return "PC " + hex(c.PC,4) + "  " + decodeFlags(c.AF) + " " + (c.iff1?"I":"-") + (c.iff2?"I":"-") + "\n"
        + "SP " + hex(c.SP,4) + "  IR " + hex(c.IR,4) + "\n"
        + "IX " + hex(c.IX,4) + "  IY " + hex(c.IY,4) + "\n"
        + "AF " + hex(c.AF,4) + "  BC " + hex(c.BC,4) + "\n"
@@ -1193,7 +1193,7 @@ export abstract class BaseMachinePlatform<T extends Machine> extends BaseDebugPl
     this.audio && this.audio.stop();
   }
 
-// TODO
+// TODO: reset target clock counter
   breakpointHit(targetClock : number) {
     console.log(this.debugTargetClock, targetClock, this.debugClock, this.machine.cpu.isStable());
     this.debugTargetClock = targetClock;
@@ -1305,6 +1305,7 @@ export abstract class BaseZ80MachinePlatform<T extends Machine> extends BaseMach
         console.log(sp,start,end);
         return dumpStackToString(<Platform><any>this, [], start, end, sp, 0xcd);
       }
+      default: return isDebuggable(this.machine) && this.machine.getDebugInfo(category, state);
     }
   }
   disassemble(pc:number, read:(addr:number)=>number) : DisasmLine {

src/machine/msx.ts

@@ -181,7 +181,7 @@ export class MSX1 extends BaseZ80VDPBasedMachine {
   }
 
   vdpInterrupt() {
-    this.cpu.interrupt(0x38);
+    this.cpu.interrupt(0xff); // RST 0x38
   }
 
   loadState(state) {

src/machine/mw8080bw.ts

@@ -118,9 +118,9 @@ export class Midway8080 extends BasicScanlineMachine {
   drawScanline() {
     // at end of scanline
     if (this.scanline == 95)
-      this.cpu.interrupt(0x8); // RST $8
+      this.cpu.interrupt(0xcf); // RST $8
     else if (this.scanline == 223)
-      this.cpu.interrupt(0x10); // RST $10
+      this.cpu.interrupt(0xd7); // RST $10
   }
 
   advanceFrame(maxCycles, trap) : number {

src/machine/sms.ts

@@ -43,7 +43,11 @@ export class SG1000 extends BaseZ80VDPBasedMachine {
   }
   
   getKeyboardMap() { return SG1000_KEYCODE_MAP; }
-  vdpInterrupt() { return this.cpu.NMI(); }
+
+  vdpInterrupt() {
+    return this.cpu.interrupt(0xff); // RST 0x38
+    //return this.cpu.NMI();
+  }
   
    read = newAddressDecoder([
      [0xc000, 0xffff,  0x3ff, (a) => { return this.ram[a]; }],
@@ -216,7 +220,7 @@ export class SMS extends SG1000 {
   }
   getDebugInfo(category, state) {
     switch (category) {
-      case 'CPU':
+      case 'SMS': // TODO
         return super.getDebugInfo(category, state) +
           "\nBank Regs: " + this.pagingRegisters + "\n";
       default: return super.getDebugInfo(category, state);

src/platform/coleco.ts

@@ -26,6 +26,7 @@ class ColecoVisionPlatform extends BaseZ80MachinePlatform<ColecoVision> implemen
   getPresets()          { return ColecoVision_PRESETS; }
   getDefaultExtension() { return ".c"; };
   readAddress(a)        { return this.machine.read(a); }
+  readVRAMAddress(a)    { return this.machine.readVRAMAddress(a); }
   // TODO loadBios(bios)	{ this.machine.loadBIOS(a); }
 
 }

src/platform/msx.ts

@@ -42,6 +42,7 @@ class MSXPlatform extends BaseZ80MachinePlatform<MSX1> implements Platform {
   getPresets()          { return MSX_BIOS_PRESETS; }
   getDefaultExtension() { return ".c"; };
   readAddress(a)        { return this.machine.read(a); }
+  readVRAMAddress(a)    { return this.machine.readVRAMAddress(a); }
   // TODO loadBios(bios)	{ this.machine.loadBIOS(a); }
 
 }

src/platform/sms.ts

@@ -34,6 +34,7 @@ class SG1000Platform extends BaseZ80MachinePlatform<SG1000> implements Platform
   getPresets()          { return SG1000_PRESETS; }
   getDefaultExtension() { return ".c"; };
   readAddress(a)        { return this.machine.read(a); }
+  readVRAMAddress(a)    { return this.machine.readVRAMAddress(a); }
 }
 
 class SMSPlatform extends BaseZ80MachinePlatform<SMS> implements Platform {
@@ -42,6 +43,7 @@ class SMSPlatform extends BaseZ80MachinePlatform<SMS> implements Platform {
   getPresets()          { return SMS_PRESETS; }
   getDefaultExtension() { return ".c"; };
   readAddress(a)        { return this.machine.read(a); }
+  readVRAMAddress(a)    { return this.machine.readVRAMAddress(a); }
 }
 
 ///

test/cli/z80/testzexall.js

@@ -30,7 +30,7 @@ describe('ZilogZ80', function() {
     cpu.reset();
     let cycles = 0;
     let finish = false;
-    var maxcyc = runall ? 10000000000 : 1000000;
+    var maxcyc = runall ? 10000000000 : 10000000;
     for (var i=0; i<maxcyc; i++) {
       cycles += cpu.advanceInsn(1);
       var pc = cpu.getPC();