mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-19 20:39:01 +00:00
167 lines
No EOL
6.5 KiB
HTML
167 lines
No EOL
6.5 KiB
HTML
<html>
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<body>
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<h3>
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To Do</h3>
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<ul>
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<li>int.parse plug<ul>
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<li>plug article</li>
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</ul>
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</li>
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<li>tohex plug based on string input of X8 etc</li>
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<li>Express article</li>
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<li>Guess Demo</li>
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<li>Watches - at least locals first</li>
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</ul>
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<h3>
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Matthijs - Next Release</h3>
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<ul>
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<li>Literal bug<ul>
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<li>
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<pre>UInt32 x = 0x000010E1;
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x = x & 0xFFFFFFFC;
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Console.WriteLine(x.ToHex());
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This produces 000000E1
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If you change it to
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x = x & 0x0FFFFFFC;
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it works. It seems our compiler is outputting wrong when the high bit is set. The outputted ASM when the high bit is set is wrong:
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System_Void__BreakpointsKernel_BreakpointsOS_BeforeRun____DOT__00000008:
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; [Cosmos.IL2CPU.X86.IL.Ldc_I4]
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push dword 0xFC
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; Stack contains 2 items: (4, 4) </pre>
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</li>
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</ul>
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</li>
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<li>Express isnt showing any templates</li>
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</ul>
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<h3>
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Matthijs - Next Release + 1</h3>
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<ul>
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<li>(joint with Kudzu) - Move all critical plugs out of old asms and remove building
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of old asms.<ul>
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<li>And the plugs also from CustomImplementations in IL2CPU?</li>
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</ul>
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</li>
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<li>Exceptions dont work. Try int.parse("asdf"). It runs but when the exception is
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hit we get garbage back instead. (ie exceptions through plug proxy dont work)</li>
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<li>We are still stuck on install.bat.. I made a change in Cosmos.Hardware.. but it
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didnt take effect until I ran install.bat..</li>
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<li>IL2CPU.AlwaysCompile attribute and get rid of IDT.Dummy</li>
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<li>int j = Array.IndexOf(Digits, s[i]);<ul>
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<li>When Digits is a char array, we get a plug needed error.</li>
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</ul>
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</li>
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<li>Plugs <ul>
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<li>Source Plugs - Leave as they are</li>
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<li>Assembly Plugs - Change to have attribute on the TARGET instead of the
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implementation and only allow assembly.. this cuts out the "proxy" class and
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makes it easier to find plug impls. See Rings.html for more info. The assembly
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level plugs can even go in the same assembly, source file and if we can the same
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class? That is currently these assembly plugs require 3 classes to implement.
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its ugly and messy... we can get it down to 2 - 1 + assembly (X# only!). Current
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way is such a mess we even comment them as plugged, but then have to go guessing
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where the impl is... See example down below....</li>
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<li>Convert all source plugs and disable old attributes...so for new ones use new
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names</li>
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</ul>
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</li>
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<ul>
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<li>We need to dynamically
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load the plugs etc so we can just rebuild and run and even trace them without
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rerunnig the bat for each change</li>
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</ul>
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<li>2010 support<ul>
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<li>http://blogs.msdn.com/b/jacdavis/archive/2010/04/05/vs-2010-version-of-debugenginesample-is-now-available.aspx</li>
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<li>Trivalik worked on some already</li>
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</ul>
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</li>
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<li>Ring attributes and enforcement<ul>
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<li>Also allow restriction of assembly references</li>
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<li>Only allow core to be /unsafe, no others</li>
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</ul>
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</li>
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<li>Ask on forums: How to debug the vsdebug pkg?<ul>
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<li>http://social.msdn.microsoft.com/Forums/en-US/vsx/thread/6a9a307a-19fa-4c06-8728-303c1f4dd0bc/</li>
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</ul>
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</li>
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</ul>
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<h3>
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Even later</h3>
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<ul>
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<li>localloc - int.parse needs plug for now because of this.</li>
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<li>use INT3 for BP? Will save 3 bytes per call.. which is a lot...</li>
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<li>Gradual X# upgrades (Kudzu)</li>
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<li>Filesystem</li>
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<li>Memory Manager<ul>
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<li>http://www.osdever.net/tutorials/view/memory-management-1</li>
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<li>http://www.osdever.net/tutorials/view/memory-management-2</li>
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</ul>
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</li>
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<li>UDP</li>
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<li>TCP</li>
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<li>Cosmos.Debug.Common - much in here is not common and should be moved to
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VSDebug.. Add Readme.html that NASM and VSDebug use whats left</li>
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<li>foreach / interfaces</li>
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</ul>
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<h3>
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Farther Down</h3>
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<ul>
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<li>USB</li>
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</ul>
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<h3>
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Notes</h3>
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<p>
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<h3>
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Assembly Plug Example</h3>
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<h4>
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Old way</h4>
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<p>
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(3 classes, often 3 source files as well)</p>
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<pre>public class CPUBus {
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// Plugged
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public static void Write8(UInt16 aPort, byte aData) { }
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...
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[Plug(Target = typeof(Cosmos.Kernel.CPUBus))]
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class CPUBus {
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[PlugMethod(Assembler = typeof(Assemblers.IOWrite8))]
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public static void Write8(UInt16 aPort, byte aData) { }
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...
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public sealed class IOWrite8: AssemblerMethod {
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public override void AssembleNew(object aAssembler, object aMethodInfo) {
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//TODO: This is a lot of work to write to a single port. We need to have some kind of inline ASM option that can emit a single out instruction
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new CPUx86.Move { DestinationReg = CPUx86.Registers.EDX, SourceReg = CPUx86.Registers.EBP, SourceDisplacement = 0xC, SourceIsIndirect = true };
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new CPUx86.Move { DestinationReg = CPUx86.Registers.EAX, SourceReg = CPUx86.Registers.EBP, SourceDisplacement = 0x8, SourceIsIndirect = true };
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new CPUx86.Out { DestinationReg = CPUx86.Registers.AL };
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}
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} </pre>
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<h4>
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New way</h4>
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<p>
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See how much neater and self contained this is? :)</p>
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<p>
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public class CPUBus {<br />
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<br />
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[AsmBody(Assembler = typeof(IOWrite8))]<br />
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public static void Write8(UInt16 aPort, byte aData) { }<br />
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// Nested class even... :) Keeps it all in one unit!<br />
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public class IOWrite8 : CodeBlock {
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<br />
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public override void Assemble() {<br />
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EDX = EBP + 0x0C;<br />
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EAX = EBP + 0x08;<br />
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Port[DX] = AL;<br />
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}<br />
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}
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<br />
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<br />
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} </p>
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</body>
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</html> |