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Extract VM diagnostic handler

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This commit is contained in:
gamer147
2026-08-03 09:50:43 -04:00
parent 6a25e3d1d0
commit ddd9853bd6
4 changed files with 41 additions and 10 deletions
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29
engine/Age.Engine/Vm/VirtualMachine.Diagnostics.cs Normal file
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@@ -0,0 +1,29 @@
using Age.Engine.Model;
namespace Age.Engine.Vm;
public sealed partial class VirtualMachine
{
private int StepDiagnostic(string label, Instruction instruction, int pc)
{
IReadOnlyList<Operand> a = instruction.Args;
switch (label)
{
case "u00425790": // upstream ABI label
case "append-diagnostic-value": // 0x1b2: generic operand text -> EngineCtx accumulator
_diagnosticOutput.Append(FormatDiagnosticOperand(a[0]));
return pc + 1;
case "u004257D0": // upstream ABI label
case "append-diagnostic-newline": // 0x1b3: exact native CRLF bytes
_diagnosticOutput.Append("\r\n");
return pc + 1;
case "u004237C0": // upstream ABI label
case "show-and-clear-diagnostic": // 0x1b4: synchronous host prompt, then erase
_host.ShowDiagnosticMessage(BuildDiagnosticMessage(instruction));
_diagnosticOutput.Clear();
return pc + 1;
default:
throw new InvalidOperationException($"Non-diagnostic opcode routed to diagnostic handler: {label}");
}
}
}

8
engine/Age.Engine/Vm/VirtualMachine.cs
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@@ -1244,17 +1244,11 @@ public sealed partial class VirtualMachine
return StepValue(label, a, pc);
case "u00425790": // upstream ABI label
case "append-diagnostic-value": // 0x1b2: generic operand text -> EngineCtx accumulator
_diagnosticOutput.Append(FormatDiagnosticOperand(a[0]));
return pc + 1;
case "u004257D0": // upstream ABI label
case "append-diagnostic-newline": // 0x1b3: exact native CRLF bytes
_diagnosticOutput.Append("\r\n");
return pc + 1;
case "u004237C0": // upstream ABI label
case "show-and-clear-diagnostic": // 0x1b4: synchronous host prompt, then erase
_host.ShowDiagnosticMessage(BuildDiagnosticMessage(ins));
_diagnosticOutput.Clear();
return pc + 1;
return StepDiagnostic(label, ins, pc);
case "is-catalog-resource-unlocked":
case "save-numbered-slot": // 0x19e
case "load-numbered-slot-data-only": // 0x19f