Adds assembler for SuperVM instructions.

This commit is contained in:
Felix Quei�ner 2016-05-20 21:00:57 +02:00
parent 9a7e2e8ceb
commit cbc817bd36
6 changed files with 538 additions and 22 deletions

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<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
</startup>
</configuration>

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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
namespace supervm_asm
{
class Program
{
static void Main(string[] args)
{
// MnemonicParser.GenerateFromDocumentation(@"D:\felix\projects\DasOS\prototypes\supervm\instructions.md");
var code = Assembler.Assemble(File.ReadAllText("testcode.asm"));
for (int i = 0; i < code.Length; i++)
{
Console.Write("; {0:X3} ", i);
Console.Write(Convert.ToString((long)code[i], 2).PadLeft(64, '0'));
Console.WriteLine();
}
}
}
public static class Assembler
{
static Regex annotationMatcher = new Regex(@"\[\s*(.*?)\s*\]", RegexOptions.Compiled);
static Regex labelMatcher = new Regex(@"^(\w+):\s*(.*)\s*$", RegexOptions.Compiled);
static Regex instructionMatcher = new Regex(@"(\w+)(?:\s+(@?\w+))?", RegexOptions.Compiled);
public static ulong[] Assemble(string src)
{
var lines = src.Split(new[] { '\n', '\r' }, StringSplitOptions.RemoveEmptyEntries);
var patches = new Dictionary<int, string>();
var labels = new Dictionary<string, int>();
var code = new List<ulong>();
for (int i = 0; i < lines.Length; i++)
{
var line = lines[i].Trim();
{ // Process comments
var idx = line.IndexOf(';');
if (idx >= 0)
line = line.Substring(0, idx);
}
{ // Process labels
var match = labelMatcher.Match(line);
if (match.Success)
{
var label = match.Groups[1].Value;
labels.Add(label, code.Count);
line = match.Groups[2].Value;
}
}
if (string.IsNullOrWhiteSpace(line))
continue;
var annotations = new HashSet<string>();
line = annotationMatcher.Replace(line, (m) =>
{
annotations.Add(m.Groups[1].Value.ToLower());
return "";
});
line = line.Trim();
{
var match = instructionMatcher.Match(line);
if (match.Success == false)
throw new InvalidOperationException("Invalid instruction: " + line);
var mnemonic = match.Groups[1].Value;
uint argument = 0;
if (match.Groups[2].Length > 0)
{
var argstring = match.Groups[2].Value;
if (argstring.StartsWith("@"))
{
// Add patch note for labels.
patches.Add(code.Count, argstring.Substring(1));
}
else if (argstring.StartsWith("0x"))
{
argument = Convert.ToUInt32(argstring.Substring(2), 16);
}
else if (argstring.StartsWith("0b"))
{
argument = Convert.ToUInt32(argstring.Substring(2), 10);
}
else if (argstring.StartsWith("0d"))
{
argument = Convert.ToUInt32(argstring.Substring(2), 10);
}
else
{
argument = Convert.ToUInt32(argstring, 10);
}
}
var instruction = mnemonics[mnemonic];
foreach(var annotation in annotations)
{
if(annotation.StartsWith("ci:"))
{
instruction.CommandInfo = UInt16.Parse(annotation.Substring(3));
continue;
}
if (annotation.StartsWith("cmd:"))
{
instruction.Command = (Command)Enum.Parse(typeof(Command), annotation.Substring(4));
continue;
}
switch (annotation)
{
case "f:yes":
instruction.ModifyFlags = false;
break;
case "f:no":
instruction.ModifyFlags = true;
break;
case "r:discard":
instruction.Output = OutputType.Discard;
break;
case "r:push":
instruction.Output = OutputType.Push;
break;
case "r:jump":
instruction.Output = OutputType.Jump;
break;
case "i0:zero":
instruction.Input0 = InputType.Zero;
break;
case "i0:pop":
instruction.Input0 = InputType.Pop;
break;
case "i0:peek":
instruction.Input0 = InputType.Peek;
break;
case "i0:arg":
instruction.Input0 = InputType.Argument;
break;
case "i1:zero":
instruction.Input1 = InputType.Zero;
break;
case "i1:pop":
instruction.Input1 = InputType.Pop;
break;
case "ex(z)=x":
instruction.ExecutionZ = ExecutionMode.Always;
break;
case "ex(z)=0":
instruction.ExecutionZ = ExecutionMode.Zero;
break;
case "ex(z)=1":
instruction.ExecutionZ = ExecutionMode.One;
break;
case "ex(n)=x":
instruction.ExecutionN = ExecutionMode.Always;
break;
case "ex(n)=0":
instruction.ExecutionN = ExecutionMode.Zero;
break;
case "ex(n)=1":
instruction.ExecutionN = ExecutionMode.One;
break;
default:
throw new InvalidOperationException("Unrecognized annotation: " + annotation);
}
}
ulong encoded = 0;
encoded |= ((uint)(instruction.ExecutionZ) << 0);
encoded |= ((uint)(instruction.ExecutionN) << 2);
encoded |= ((uint)(instruction.Input0) << 4);
encoded |= ((uint)(instruction.Input1) << 6);
encoded |= ((uint)(instruction.Command) << 7);
encoded |= ((uint)(instruction.CommandInfo) << 13);
encoded |= ((uint)(instruction.ModifyFlags ? 1 : 0) << 29);
encoded |= ((uint)(instruction.Output) << 30);
encoded |= ((ulong)argument << 32);
code.Add(encoded);
}
}
{ // Install patches
foreach (var patch in patches)
{
var target = patch.Value;
var position = labels[target];
code[patch.Key] =
(code[patch.Key] & 0xFFFFFFFF) |
((ulong)position << 32);
}
}
return code.ToArray();
}
static Dictionary<string, Instruction> mnemonics = new Dictionary<string, Instruction>()
{
{ "nop", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Zero, Input1 = InputType.Zero, Command = Command.Copy, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Discard, Argument = 0, } },
{ "push", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Argument, Input1 = InputType.Zero, Command = Command.Copy, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "drop", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Zero, Command = Command.Copy, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Discard, Argument = 0, } },
{ "dup", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Peek, Input1 = InputType.Zero, Command = Command.Copy, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "jmp", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Argument, Input1 = InputType.Zero, Command = Command.Copy, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Jump, Argument = 0, } },
{ "jmpi", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Zero, Command = Command.Copy, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Jump, Argument = 0, } },
{ "ret", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Zero, Command = Command.Copy, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Jump, Argument = 0, } },
{ "load", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Argument, Input1 = InputType.Zero, Command = Command.Load, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "loadi", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Zero, Command = Command.Load, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "store", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Argument, Input1 = InputType.Pop, Command = Command.Store, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Discard, Argument = 0, } },
{ "storei", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Store, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Discard, Argument = 0, } },
{ "get", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Argument, Input1 = InputType.Zero, Command = Command.Get, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "geti", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Zero, Command = Command.Get, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "set", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Argument, Input1 = InputType.Pop, Command = Command.Set, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Discard, Argument = 0, } },
{ "seti", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Set, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Discard, Argument = 0, } },
{ "bpget", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Zero, Input1 = InputType.Zero, Command = Command.BpGet, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "bpset", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Zero, Command = Command.BpSet, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Discard, Argument = 0, } },
{ "add", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Math, CommandInfo = 0, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "sub", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Math, CommandInfo = 1, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "mul", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Math, CommandInfo = 2, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "div", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Math, CommandInfo = 3, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "mod", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Math, CommandInfo = 4, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "and", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Math, CommandInfo = 5, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "or", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Math, CommandInfo = 6, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "xor", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Math, CommandInfo = 7, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "not", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Zero, Command = Command.Math, CommandInfo = 8, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "rol", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Math, CommandInfo = 9, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "ror", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Math, CommandInfo = 10, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "asl", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Math, CommandInfo = 11, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "asr", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Math, CommandInfo = 12, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "shl", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Math, CommandInfo = 13, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
{ "shr", new Instruction() { ExecutionZ = ExecutionMode.Always, ExecutionN = ExecutionMode.Always, Input0 = InputType.Pop, Input1 = InputType.Pop, Command = Command.Math, CommandInfo = 14, ModifyFlags = false, Output = OutputType.Push, Argument = 0, } },
};
}
class MnemonicParser
{
public static void GenerateFromDocumentation(string file)
{
var relevantLines = File
.ReadAllLines(file)
.SkipWhile(l => l != "## Assembler Mnemonics")
.Skip(1)
.SkipWhile(l => string.IsNullOrWhiteSpace(l))
.TakeWhile(l => l.StartsWith("|"))
.Skip(2)
.ToArray();
var instructions = relevantLines
.Select(l => l
.Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries)
.Select(s => s.Trim())
.ToArray())
.ToDictionary(a => a[0], a => new Instruction()
{
ExecutionN = ExecutionMode.Always,
ExecutionZ = ExecutionMode.Always,
Input0 = ToInputMode(a[2]),
Input1 = ToInputMode(a[3]),
Command = ToCommand(a[4]),
CommandInfo = ushort.Parse(a[5]),
ModifyFlags = false,
Output = ToOutput(a[6]),
Argument = 0,
});
var fields = typeof(Instruction).GetFields();
foreach (var item in instructions)
{
// { "a", new Instruction() { } },
Console.Write("{{ \"{0}\", new Instruction() {{ ", item.Key);
foreach (var field in fields)
{
var value = field.GetValue(item.Value);
if (field.FieldType.IsEnum)
Console.Write("{0} = {1}.{2}, ", field.Name, field.FieldType.Name, value);
else
Console.Write("{0} = {1}, ", field.Name, value.ToString().ToLower());
}
Console.WriteLine(" } },");
}
}
private static OutputType ToOutput(string v)
{
switch (v.ToLower())
{
case "discard": return OutputType.Discard;
case "push": return OutputType.Push;
case "jump": return OutputType.Jump;
default:
throw new NotSupportedException();
}
}
private static Command ToCommand(string v)
{
return (Command)Enum.Parse(typeof(Command), v, true);
}
private static InputType ToInputMode(string v)
{
switch (v.ToLower())
{
case "zero": return InputType.Zero;
case "peek": return InputType.Peek;
case "pop": return InputType.Pop;
case "arg": return InputType.Argument;
default:
throw new NotSupportedException();
}
}
}
public struct Instruction
{
public ExecutionMode ExecutionZ;
public ExecutionMode ExecutionN;
public InputType Input0;
public InputType Input1;
public Command Command;
public ushort CommandInfo;
public bool ModifyFlags;
public OutputType Output;
public uint Argument;
}
public enum MathCommand
{
Add = 0,
Subtract = 1,
Multiplicate = 2,
Divide = 3,
Modulo = 4,
And = 5,
Or = 6,
Xor = 7,
Not = 8,
RotShiftLeft = 9,
RotShiftRight = 10,
ArithmeticShiftLeft = 11,
ArithmeticShiftRight = 12,
LogicShiftLeft = 13,
LogicShiftRight = 14,
}
public enum Command
{
Copy = 0,
Store = 1,
Load = 2,
Get = 3,
Set = 4,
BpGet = 5,
BpSet = 6,
RstStack = 7,
Math = 8,
SpGet = 9,
SpSet = 10,
}
public enum OutputType
{
Discard = 0,
Push = 1,
Jump = 2,
}
public enum ExecutionMode
{
Always = 0,
Zero = 2,
One = 3,
}
public enum InputType
{
Zero = 0,
Pop = 1,
Peek = 2,
Argument = 3,
}
}

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@ -0,0 +1,36 @@
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
// Allgemeine Informationen über eine Assembly werden über die folgenden
// Attribute gesteuert. Ändern Sie diese Attributwerte, um die Informationen zu ändern,
// die einer Assembly zugeordnet sind.
[assembly: AssemblyTitle("supervm-asm")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("supervm-asm")]
[assembly: AssemblyCopyright("Copyright © 2016")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
// Durch Festlegen von ComVisible auf "false" werden die Typen in dieser Assembly unsichtbar
// für COM-Komponenten. Wenn Sie auf einen Typ in dieser Assembly von
// COM aus zugreifen müssen, sollten Sie das ComVisible-Attribut für diesen Typ auf "True" festlegen.
[assembly: ComVisible(false)]
// Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird
[assembly: Guid("7b2cb53a-d2ef-4aef-b354-fcf28c581280")]
// Versionsinformationen für eine Assembly bestehen aus den folgenden vier Werten:
//
// Hauptversion
// Nebenversion
// Buildnummer
// Revision
//
// Sie können alle Werte angeben oder die standardmäßigen Build- und Revisionsnummern
// übernehmen, indem Sie "*" eingeben:
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion("1.0.0.0")]
[assembly: AssemblyFileVersion("1.0.0.0")]

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@ -0,0 +1,65 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProjectGuid>{7B2CB53A-D2EF-4AEF-B354-FCF28C581280}</ProjectGuid>
<OutputType>Exe</OutputType>
<AppDesignerFolder>Properties</AppDesignerFolder>
<RootNamespace>supervm_asm</RootNamespace>
<AssemblyName>supervm-asm</AssemblyName>
<TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
<FileAlignment>512</FileAlignment>
<AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<PlatformTarget>AnyCPU</PlatformTarget>
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<Optimize>false</Optimize>
<OutputPath>bin\Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<PlatformTarget>AnyCPU</PlatformTarget>
<DebugType>pdbonly</DebugType>
<Optimize>true</Optimize>
<OutputPath>bin\Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<ItemGroup>
<Reference Include="System" />
<Reference Include="System.Core" />
<Reference Include="System.Xml.Linq" />
<Reference Include="System.Data.DataSetExtensions" />
<Reference Include="Microsoft.CSharp" />
<Reference Include="System.Data" />
<Reference Include="System.Net.Http" />
<Reference Include="System.Xml" />
</ItemGroup>
<ItemGroup>
<Compile Include="Program.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
</ItemGroup>
<ItemGroup>
<None Include="App.config" />
</ItemGroup>
<ItemGroup>
<Content Include="testcode.asm">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</Content>
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
Other similar extension points exist, see Microsoft.Common.targets.
<Target Name="BeforeBuild">
</Target>
<Target Name="AfterBuild">
</Target>
-->
</Project>

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@ -0,0 +1,8 @@
 push 0 ; Some comment
loop:
dup
[f:yes] sub 10 [r:discard]
[ex(z)=1] jmp @end
add 1
jmp @loop
end:

View file

@ -44,16 +44,17 @@ base pointer, then popping the previous base pointer from the stack.
An SuperVM instruction is composed of multiple components:
| Component | Range | Size | Function |
|-----------|-------------------|------|-------------------------------------------|
| execution | See below. | 4 | When is the instruction executed. |
| input0 | Zero/Pop/Peek/Arg | 2 | Where does input0 come from? |
| input1 | Zero/Pop | 1 | Where does input1 come from? |
| command | [6bit] | 6 | Which command is executed? |
| cmdinfo | [16bit] | 16 | Parameter value for the command. |
| flagmod | yes/no | 1 | Does this command modifies flags? |
| output | Discard/Push/Jump | 2 | What is done with the output? |
| argument | [32bit] | 32 | Some commands can take extra information |
| Component | Range | Size | Function |
|-------------|-------------------|------|------------------------------------------|
| execution Z | See below. | 2 | Excution dependend on Zero? |
| execution N | See below. | 2 | Excution dependend on Negative? |
| input0 | Zero/Pop/Peek/Arg | 2 | Where does input0 come from? |
| input1 | Zero/Pop | 1 | Where does input1 come from? |
| command | [6bit] | 6 | Which command is executed? |
| cmdinfo | [16bit] | 16 | Parameter value for the command. |
| flagmod | yes/no | 1 | Does this command modifies flags? |
| output | Discard/Push/Jump | 2 | What is done with the output? |
| argument | [32bit] | 32 | Some commands can take extra information |
### Execution Modes
@ -81,8 +82,8 @@ An instruction is only executed when all conditions are met.
| 6 | BPSET | output = BP = input0 |
| 7 | RSTSTACK | output = SP = BP |
| 8 | MATH | output = input0 OP[info] input1 |
| 9 | spget | output = SP + input0 |
| 10 | spset | output = SP + input0 = input1 |
| 9 | SPGET | output = SP + input0 |
| 10 | SPSET | output = SP + input0 = input1 |
| 11 | | |
| 12 | | |
| 13 | | |
@ -123,16 +124,16 @@ by the `cmdinfo`.
| jmp | yes | arg | zero | copy | 0 | jump |
| jmpi | no | pop | zero | copy | 0 | jump |
| ret | no | pop | zero | copy | 0 | jump |
| load | yes | arg | zero | load | 0 | push |
| loadi | no | pop | zero | load | 0 | push |
| store | yes | arg | pop | store | 0 | discard |
| storei | no | pop | pop | store | 0 | discard |
| get | yes | arg | zero | get | 0 | push |
| geti | no | pop | zero | get | 0 | push |
| set | yes | arg | pop | set | 0 | discard |
| seti | no | pop | pop | set | 0 | discard |
| bpget | no | zero | zero | bpget | 0 | push |
| bpset | no | pop | zero | bpset | 0 | discard |
| load | yes | arg | zero | load | 0 | push |
| loadi | no | pop | zero | load | 0 | push |
| store | yes | arg | pop | store | 0 | discard |
| storei | no | pop | pop | store | 0 | discard |
| get | yes | arg | zero | get | 0 | push |
| geti | no | pop | zero | get | 0 | push |
| set | yes | arg | pop | set | 0 | discard |
| seti | no | pop | pop | set | 0 | discard |
| bpget | no | zero | zero | bpget | 0 | push |
| bpset | no | pop | zero | bpset | 0 | discard |
| add | no | pop | pop | math | 0 | push |
| sub | no | pop | pop | math | 1 | push |
| mul | no | pop | pop | math | 2 | push |