Sharp 80: TRS-80 Model III Emulator for Windows | Hacker News Reader

Sharp 80: TRS-80 Model III Emulator for Windows

sharp80.com

66 pointssohkamyung19 comments

Neat and well done. Also nice to see how an emulator can be written in C#/.NET.

The "Sharp 80" name might be a tad confusing for those of us who fondly remember the Sharp MZ80:

https://en.wikipedia.org/wiki/Sharp_MZ

This brings back very fond memories of high school. I think we have about 4 of these for a school of several hundred students. We would make a booking and stay back after school to write our programs in BASIC and assembly. Thank you to the developers, you made my day.

The model before this (was it the version II?) had a terrible keybounce problem - it was almost usable.

Later we were lucky enough to get a Compucolor II. I still have the manual from 1979 here on my bookshelf.

Learned Pascal on one. Good times. Good times.

Oh, this could be really good! I've played with a couple emulators that had some proprietary restrictions, but still worked well for my needs. A good one free and clear would be really nice!

Here's one I wrote in Go, though I just noticed I never bothered putting on a license. Let me know if you want me to. https://github.com/lkesteloot/trs80

Why ask? If you don't mind how it's used, just make it MIT, 2- or 3-Clause BSD, or Apache 2.0

This is cool. My dad threw away our TRS-80 when I was in high school, and I miss it. It was the one with the integrated monitor, I don't remember what model it was. My first computer.

The first in that line with an integrated monitor was a Model III. It was gray and smooth. The Model 4 looked practically identical but was white and textured.

I had both a III and a 4.

Mine was the gray one, and model III rings a bell.

Are there any available C compilers for these?

These were not normally programmed in C but in Assembler or basic. You might be able to find Misosys if you search hard enough, it's multi-pass iirc and works but you won't be getting a whole lot of work done in a day.

You should write up how and why you did this.

I get an error about the Direct X driver, then an unhandled exception dialog:

See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.

Exception Text System.NullReferenceException: Object reference not set to an instance of an object. at Sharp80.SoundX.<Dispose>d__57.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<>c.<ThrowAsync>b__6_0(Object state)

Loaded Assemblies mscorlib Assembly Version: 4.0.0.0 Win32 Version: 4.6.1087.0 built by: NETFXREL4STAGE CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll ---------------------------------------- Sharp80 Assembly Version: 1.1.0.87 Win32 Version: 1.1.0.87 CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/sharp80.exe ---------------------------------------- System.Windows.Forms Assembly Version: 4.0.0.0 Win32 Version: 4.6.1087.0 built by: NETFXREL4STAGE CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll ---------------------------------------- System Assembly Version: 4.0.0.0 Win32 Version: 4.6.1087.0 built by: NETFXREL4STAGE CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll ---------------------------------------- System.Drawing Assembly Version: 4.0.0.0 Win32 Version: 4.6.1087.0 built by: NETFXREL4STAGE CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll ---------------------------------------- SharpDX Assembly Version: 3.1.0.0 Win32 Version: 3.1.0 CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/SharpDX.DLL ---------------------------------------- System.Runtime Assembly Version: 4.0.0.0 Win32 Version: 4.6.1087.0 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Runtime/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Runtime.dll ---------------------------------------- SharpDX.DXGI Assembly Version: 3.1.0.0 Win32 Version: 3.1.0 CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/SharpDX.DXGI.DLL ---------------------------------------- SharpDX.Direct2D1 Assembly Version: 3.1.0.0 Win32 Version: 3.1.0 CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/SharpDX.Direct2D1.DLL ---------------------------------------- SharpDX.DirectInput Assembly Version: 3.1.0.0 Win32 Version: 3.1.0 CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/SharpDX.DirectInput.DLL ---------------------------------------- System.Threading Assembly Version: 4.0.0.0 Win32 Version: 4.6.1087.0 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Threading/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Threading.dll ---------------------------------------- System.Collections Assembly Version: 4.0.0.0 Win32 Version: 4.6.1087.0 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Collections/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Collections.dll ---------------------------------------- System.Reflection Assembly Version: 4.0.0.0 Win32 Version: 4.6.1087.0 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Reflection/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Reflection.dll ---------------------------------------- System.Configuration Assembly Version: 4.0.0.0 Win32 Version: 4.6.1087.0 built by: NETFXREL4STAGE CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll ---------------------------------------- System.Core Assembly Version: 4.0.0.0 Win32 Version: 4.6.1087.0 built by: NETFXREL4STAGE CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll ---------------------------------------- System.Xml Assembly Version: 4.0.0.0 Win32 Version: 4.6.1087.0 built by: NETFXREL4STAGE CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll ---------------------------------------- SharpDX.Direct3D10 Assembly Version: 3.1.0.0 Win32 Version: 3.1.0 CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/SharpDX.Direct3D10.DLL ---------------------------------------- SharpDX.Mathematics Assembly Version: 3.1.0.0 Win32 Version: 3.1.0 CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/SharpDX.Mathematics.DLL ---------------------------------------- System.Runtime.InteropServices Assembly Version: 4.0.0.0 Win32 Version: 4.6.1087.0 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Runtime.InteropServices/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Runtime.InteropServices.dll ---------------------------------------- System.IO Assembly Version: 4.0.0.0 Win32 Version: 4.6.1087.0 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.IO/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.IO.dll ---------------------------------------- System.ValueTuple Assembly Version: 4.0.1.0 Win32 Version: 4.6.24705.01 CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/System.ValueTuple.DLL ---------------------------------------- SharpDX.XAudio2 Assembly Version: 3.1.0.0 Win32 Version: 3.1.0 CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/SharpDX.XAudio2.DLL ----------------------------------------

JIT Debugging To enable just-in-time (JIT) debugging, the .config file for this application or computer (machine.config) must have the jitDebugging value set in the system.windows.forms section. The application must also be compiled with debugging enabled.

For example:

When JIT debugging is enabled, any unhandled exception will be sent to the JIT debugger registered on the computer rather than be handled by this dialog box.

So... needs work : ) It does seem to run after that, though.

I'll try it at home on a different PC.

I am trying to run the DirectX installer. That seems like a really old installer -- 2010. I'll see if that fixes the startup error though.

My first computer was a Model I with 4K and Level 1 BASIC. I'd love to get this working. I'd love it more if I could make it emulate a Model 1 with Level 1 BASIC so my kids could try working through the original TRS-80 BASIC programming book like I did in 1977.

I have tried some other emulators recently and had no luck.

There's a github link on the website.

Thank you. I don't use HN that much and it seemed like the developer was asking for feedback in this forum.

why paste all that here?

My apologies. I don't use HN that much and it seemed like the developer was asking for feedback in this forum.

Hi - I'm the developer and I didn't know this was here til I found it just browsing around. :) Anyway there's a new build up that might address the issue. Let me know how it goes. -- matt

Thanks, Matt! I will try it out.

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