kevinferrare/spice86

Reverse engineer and rewrite real mode dos programs!

spice86's Issues

Opening certain files causes a NullPointerException

Version tested: 1.29.0

I have attempted to run 3 games: PoP, Dune and Monkey Island. And all of them spit out different errors, but they all fail at the same line.

Prince:

[Executor] s.e.l.ExecutableFileLoader - Program entry point is 0x16D0:0x2C4
[Executor] s.e.i.dos.DosInt21Handler - GET DOS VERSION
[Executor] s.e.i.dos.DosInt21Handler - MODIFY MEMORY BLOCK size=10159, blockSegment=477
[Executor] s.e.i.dos.DosInt21Handler - GET DOS VERSION
[Executor] s.e.i.dos.DosInt21Handler - GET INTERRUPT VECTOR INT 0x0, got 0x0:0x0
[Executor] s.e.i.dos.DosInt21Handler - SET INTERRUPT VECTOR FOR INT 0x0 at address 0x16D0:0x366
[Executor] s.e.i.dos.DosInt21Handler - GET DEVICE INFORMATION
[Executor] s.e.i.dos.DosInt21Handler - GET DEVICE INFORMATION
[Executor] s.e.i.dos.DosInt21Handler - GET DEVICE INFORMATION
[Executor] s.e.i.dos.DosInt21Handler - GET DEVICE INFORMATION
[Executor] s.e.i.dos.DosInt21Handler - GET DEVICE INFORMATION
[Executor] s.e.i.dos.DosInt21Handler - GET CURRENT DEFAULT DRIVE
[Executor] s.e.i.dos.DosInt21Handler - GET CURRENT DIRECTORY responseAddress=0x198C:0x73FB
[Executor] s.e.i.dos.DosInt21Handler - OPEN FILE C:\prince.dat with mode 0x0 (rwAccessMode:0x0)
[Executor] s.e.i.dos.DosFileManager - Opening file ./PRINCE.DAT with mode r
[Executor] s.e.i.dos.DosInt21Handler - READ FROM FILE handle 5 length 6 to 0x198C:0x743C
[Executor] s.e.i.dos.DosFileManager - Reading from file C:\prince.dat
[Executor] s.e.i.dos.DosInt21Handler - ALLOCATE MEMORY BLOCK size=39
[Executor] s.e.i.dos.DosInt21Handler - MOVE FILE POINTER USING HANDLE. originOfMove=0, fileHandle=5, offset=25086
[Executor] s.e.i.dos.DosFileManager - Moving in file C:\prince.dat
[Executor] s.e.i.dos.DosInt21Handler - READ FROM FILE handle 5 length 514 to 0x298D:0x5E
[Executor] s.e.i.dos.DosFileManager - Reading from file C:\prince.dat
[Executor] s.e.i.dos.DosInt21Handler - FIND FIRST MATCHING FILE attributes=0x8, fileSpec=C:????????.???
[Executor] s.e.i.dos.DosFileManager - Found matching file ./DIGISND3.DAT
[Executor] s.e.i.dos.DosInt21Handler - GET DTA (DISK TRANSFER ADDRESS) DS:DX 0x1DD:0x80
[Executor] s.e.i.dos.DosInt21Handler - FIND NEXT MATCHING FILE attributes=0x8, fileSpec=C:????????.???
[Executor] s.e.i.dos.DosFileManager - Found matching file ./SNDDRVRS/PRESET33.DEF
[Executor] s.e.i.dos.DosInt21Handler - FIND NEXT MATCHING FILE attributes=0x8, fileSpec=C:????????.???
[Executor] s.e.i.dos.DosFileManager - Found matching file ./VDUNGEON.DAT
[Executor] s.e.i.dos.DosInt21Handler - FIND NEXT MATCHING FILE attributes=0x8, fileSpec=C:????????.???
[Executor] s.e.i.dos.DosFileManager - Found matching file ./MIDISND1.DAT
[Executor] s.e.i.dos.DosInt21Handler - FIND NEXT MATCHING FILE attributes=0x8, fileSpec=C:????????.???
[Executor] s.e.i.dos.DosFileManager - Found matching file ./DIGISND1.DAT
[Executor] s.e.i.dos.DosInt21Handler - FIND NEXT MATCHING FILE attributes=0x8, fileSpec=C:????????.???
[Executor] s.e.i.dos.DosFileManager - Found matching file ./IBM_SND2.DAT
[Executor] s.e.i.dos.DosInt21Handler - FIND NEXT MATCHING FILE attributes=0x8, fileSpec=C:????????.???
[Executor] s.e.i.dos.DosFileManager - Found matching file ./DIGISND2.DAT
[Executor] s.e.i.dos.DosInt21Handler - FIND NEXT MATCHING FILE attributes=0x8, fileSpec=C:????????.???
[Executor] s.e.i.dos.DosFileManager - Found matching file ./MIDISND2.DAT
[Executor] s.e.i.dos.DosInt21Handler - FIND NEXT MATCHING FILE attributes=0x8, fileSpec=C:????????.???
[Executor] s.e.i.dos.DosFileManager - Found matching file ./IBM_SND1.DAT
[Executor] s.e.i.dos.DosInt21Handler - FIND NEXT MATCHING FILE attributes=0x8, fileSpec=C:????????.???
[Executor] s.e.i.dos.DosFileManager - No more files matching ????????.??? in path ./
[Executor] s.e.i.dos.DosInt21Handler - DOS operation failed with an error. Int will return to null. State is cycles=1682 CS:IP=0xF000:0x28/0xF000:0x28 AX=0x4F43 BX=0x80 CX=0x8 DX=0x0 SI=0x745F DI=0xC BP=0x7444 SP=0x73EC SS=0x198C DS=0x198B ES=0x1DD FS=0x0 GS=0x0 flags=0x7046 (     Z P )
[Executor] s.e.i.dos.DosInt21Handler - OPEN FILE setup.dat with mode 0x0 (rwAccessMode:0x0)
[Executor] spice86.ui.Spice86Application - An error occurred during execution
java.lang.NullPointerException: null
        at java.base/java.io.File.<init>(File.java:278)
        at spice86.emulator.interrupthandlers.dos.DosFileManager.toCaseSensitiveFileName(DosFileManager.java:450)
        at spice86.emulator.interrupthandlers.dos.DosFileManager.toCaseSensitiveFileName(DosFileManager.java:456)
        at spice86.emulator.interrupthandlers.dos.DosFileManager.toCaseSensitiveFileName(DosFileManager.java:456)
        at spice86.emulator.interrupthandlers.dos.DosFileManager.toHostCaseSensitiveFileName(DosFileManager.java:420)
        at spice86.emulator.interrupthandlers.dos.DosFileManager.openFile(DosFileManager.java:102)
        at spice86.emulator.interrupthandlers.dos.DosInt21Handler.openFile(DosInt21Handler.java:290)
        at spice86.emulator.interrupthandlers.dos.DosInt21Handler.lambda$fillDispatchTable$3(DosInt21Handler.java:71)
        at spice86.emulator.callback.IndexBasedDispatcher.run(IndexBasedDispatcher.java:21)
        at spice86.emulator.interrupthandlers.dos.DosInt21Handler.run(DosInt21Handler.java:96)
        at spice86.emulator.callback.IndexBasedDispatcher.run(IndexBasedDispatcher.java:21)
        at spice86.emulator.cpu.Cpu.callback(Cpu.java:1793)
        at spice86.emulator.cpu.Cpu.grp4(Cpu.java:1503)
        at spice86.emulator.cpu.Cpu.execOpcode(Cpu.java:1135)
        at spice86.emulator.cpu.Cpu.executeNextInstruction(Cpu.java:200)
        at spice86.emulator.machine.Machine.runLoop(Machine.java:300)
        at spice86.emulator.machine.Machine.run(Machine.java:290)
        at spice86.emulator.ProgramExecutor.run(ProgramExecutor.java:51)
        at spice86.ui.Spice86Application.lambda$startMachine$3(Spice86Application.java:55)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:833)

Dune:

[Executor] s.e.l.ExecutableFileLoader - Program entry point is 0x1ED:0x0
[Executor] s.e.i.dos.DosInt21Handler - GET CURRENT DEFAULT DRIVE
[Executor] s.e.i.dos.DosInt21Handler - GET/SET CTRL-C FLAG
[Executor] s.e.i.dos.DosInt21Handler - GET/SET CTRL-C FLAG
[Executor] s.e.i.dos.DosInt21Handler - OPEN FILE dunevga.hsq with mode 0x0 (rwAccessMode:0x0)
[Executor] spice86.ui.Spice86Application - An error occurred during execution
java.lang.NullPointerException: null
       at java.base/java.io.File.<init>(File.java:278)
       at spice86.emulator.interrupthandlers.dos.DosFileManager.toCaseSensitiveFileName(DosFileManager.java:450)
       at spice86.emulator.interrupthandlers.dos.DosFileManager.toCaseSensitiveFileName(DosFileManager.java:456)
       at spice86.emulator.interrupthandlers.dos.DosFileManager.toCaseSensitiveFileName(DosFileManager.java:456)
       at spice86.emulator.interrupthandlers.dos.DosFileManager.toHostCaseSensitiveFileName(DosFileManager.java:420)
       at spice86.emulator.interrupthandlers.dos.DosFileManager.openFile(DosFileManager.java:102)
       at spice86.emulator.interrupthandlers.dos.DosInt21Handler.openFile(DosInt21Handler.java:290)
       at spice86.emulator.interrupthandlers.dos.DosInt21Handler.lambda$fillDispatchTable$3(DosInt21Handler.java:71)
       at spice86.emulator.callback.IndexBasedDispatcher.run(IndexBasedDispatcher.java:21)
       at spice86.emulator.interrupthandlers.dos.DosInt21Handler.run(DosInt21Handler.java:96)
       at spice86.emulator.callback.IndexBasedDispatcher.run(IndexBasedDispatcher.java:21)
       at spice86.emulator.cpu.Cpu.callback(Cpu.java:1793)
       at spice86.emulator.cpu.Cpu.grp4(Cpu.java:1503)
       at spice86.emulator.cpu.Cpu.execOpcode(Cpu.java:1135)
       at spice86.emulator.cpu.Cpu.executeNextInstruction(Cpu.java:200)
       at spice86.emulator.machine.Machine.runLoop(Machine.java:300)
       at spice86.emulator.machine.Machine.run(Machine.java:290)
       at spice86.emulator.ProgramExecutor.run(ProgramExecutor.java:51)
       at spice86.ui.Spice86Application.lambda$startMachine$3(Spice86Application.java:55)
       at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
       at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
       at java.base/java.lang.Thread.run(Thread.java:833)

Monkey:

[Executor] s.e.l.ExecutableFileLoader - Program entry point is 0x12B1:0xE
[Executor] s.e.i.dos.DosInt21Handler - GET DOS VERSION
[Executor] s.e.i.dos.DosInt21Handler - MODIFY MEMORY BLOCK size=10659, blockSegment=477
[Executor] s.e.i.dos.DosInt21Handler - GET DOS VERSION
[Executor] s.e.i.dos.DosInt21Handler - GET INTERRUPT VECTOR INT 0x0, got 0x0:0x0
[Executor] s.e.i.dos.DosInt21Handler - SET INTERRUPT VECTOR FOR INT 0x0 at address 0x114C:0x57CF
[Executor] s.e.i.dos.DosInt21Handler - GET DEVICE INFORMATION
[Executor] s.e.i.dos.DosInt21Handler - GET DEVICE INFORMATION
[Executor] s.e.i.dos.DosInt21Handler - GET DEVICE INFORMATION
[Executor] s.e.i.dos.DosInt21Handler - GET DEVICE INFORMATION
[Executor] s.e.i.dos.DosInt21Handler - GET DEVICE INFORMATION
[Executor] s.e.i.dos.DosInt21Handler - GET CURRENT DEFAULT DRIVE
[Executor] s.e.i.dos.DosInt21Handler - SET INTERRUPT VECTOR FOR INT 0x24 at address 0x114C:0x7A21
[Executor] s.e.i.dos.DosInt21Handler - OPEN FILE 000.lfl with mode 0x0 (rwAccessMode:0x0)
[Executor] spice86.ui.Spice86Application - An error occurred during execution
java.lang.NullPointerException: null
        at java.base/java.io.File.<init>(File.java:278)
        at spice86.emulator.interrupthandlers.dos.DosFileManager.toCaseSensitiveFileName(DosFileManager.java:450)
        at spice86.emulator.interrupthandlers.dos.DosFileManager.toCaseSensitiveFileName(DosFileManager.java:456)
        at spice86.emulator.interrupthandlers.dos.DosFileManager.toCaseSensitiveFileName(DosFileManager.java:456)
        at spice86.emulator.interrupthandlers.dos.DosFileManager.toHostCaseSensitiveFileName(DosFileManager.java:420)
        at spice86.emulator.interrupthandlers.dos.DosFileManager.openFile(DosFileManager.java:102)
        at spice86.emulator.interrupthandlers.dos.DosInt21Handler.openFile(DosInt21Handler.java:290)
        at spice86.emulator.interrupthandlers.dos.DosInt21Handler.lambda$fillDispatchTable$3(DosInt21Handler.java:71)
        at spice86.emulator.callback.IndexBasedDispatcher.run(IndexBasedDispatcher.java:21)
        at spice86.emulator.interrupthandlers.dos.DosInt21Handler.run(DosInt21Handler.java:96)
        at spice86.emulator.callback.IndexBasedDispatcher.run(IndexBasedDispatcher.java:21)
        at spice86.emulator.cpu.Cpu.callback(Cpu.java:1793)
        at spice86.emulator.cpu.Cpu.grp4(Cpu.java:1503)
        at spice86.emulator.cpu.Cpu.execOpcode(Cpu.java:1135)
        at spice86.emulator.cpu.Cpu.executeNextInstruction(Cpu.java:200)
        at spice86.emulator.machine.Machine.runLoop(Machine.java:300)
        at spice86.emulator.machine.Machine.run(Machine.java:290)
        at spice86.emulator.ProgramExecutor.run(ProgramExecutor.java:51)
        at spice86.ui.Spice86Application.lambda$startMachine$3(Spice86Application.java:55)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:833)

I have tried using both Oracle Java and OpenJDK, both version 17.
I will admit, I am not the most knowledgeable on Java, and this could be an issue caused by me.
My process was:

1. Download the package from packages
2. Run the jar as described in README.md

OS:
Linux 5.10.79-1-MANJARO

The UI should be re-arrangeable

Use AvaloniaDock :
https://github.com/wieslawsoltes/Dock

Support for savestates

Savestates would be very helpful to easily and reliably reproduce and investigate / debug a program.
Memory, CPU state, and devices states would need to have save / restore capabilities for this to work.

Pause button for GDB

In client mode, GDB does not send anything to the server when the user presses ctrl+C to suspend execution.
A workaround could be to assign a key like "Pause Break" on the keyboard to break the execution when a GDB client is connected.

Int was called but vector was not initialized for vectorNumber

I'm trying to run Colonization in spice86. When I start it, it outputs the following and then exits:

[Executor] spice86.emulator.ProgramExecutor - Loading file VICEROY.EXE with loader class spice86.emulator.loadablefile.dos.exe.ExeLoader
[Executor] s.e.l.ExecutableFileLoader - Program entry point is 0x12FA:0x71D
[Executor] s.e.i.dos.DosInt21Handler - GET DOS VERSION
[Executor] s.e.i.dos.DosInt21Handler - GET INTERRUPT VECTOR INT 0x67, got 0x0:0x0
[Executor] s.e.i.dos.DosInt21Handler - GET DOS VERSION
[Executor] spice86.ui.Spice86Application - An error occurred during execution
spice86.emulator.errors.UnhandledOperationException: An error occurred while machine was in this state: cycles=204 CS:IP=0x12FA:0x4D16/0x1000:0x7CB6 AX=0x4300 BX=0xFF00 CX=0x0 DX=0x0 SI=0x4FCF DI=0x0 BP=0x0 SP=0x407E SS=0x27D2 DS=0x12FA ES=0x1DD FS=0x0 GS=0x0 flags=0x7202 (  I      ).
Error is: Int was called but vector was not initialized for vectorNumber=0x2F
        at spice86.emulator.cpu.Cpu.interrupt(Cpu.java:1747)
        at spice86.emulator.cpu.Cpu.execOpcode(Cpu.java:927)
        at spice86.emulator.cpu.Cpu.executeNextInstruction(Cpu.java:199)
        at spice86.emulator.machine.Machine.runLoop(Machine.java:307)
        at spice86.emulator.machine.Machine.run(Machine.java:291)

Is this something that can be fixed, or is this executable just not supported? Thanks for an awesome tool!