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Tito Hinostroza
GitHub
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commit
1d05a351f9
32
CPUCore.pas
32
CPUCore.pas
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@ -21,13 +21,15 @@ type
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end;
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TCPUCellState = (
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cs_implemen, //Implemented. Can be used.
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cs_impleSFR, //Implemented. Used by Oeprative System o Kernel
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cs_impleGPR, //Implemented. Can be used.
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cs_unimplem //Not implemented.
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);
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TCPURamUsed = (
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ruUnused,
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ruCode, //Used for code
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ruVar //Used for variable
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ruUnused, //(NOT included in PRG output file)
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ruCode, //Used for code (included in PRG output file)
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ruData, //Used for variables (included in PRG output file)
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ruAbsData //Used for variables in absolute positions (NOT included in PRG output file)
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);
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type //Models for RAM memory
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@ -103,6 +105,7 @@ type
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procedure DisableAllRAM;
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procedure SetStatRAM(i1, i2: word; status0: TCPUCellState);
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function SetStatRAMCom(strDef: string): boolean;
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function SetDataAddr(strDef: string): boolean;
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function HaveConsecRAM(const i, n: word; maxRam: dword): boolean; //Indica si hay "n" bytes libres
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procedure UseConsecRAM(const i, n: word); //Ocupa "n" bytes en la posición "i"
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procedure SetSharedUnused;
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@ -148,7 +151,7 @@ end;
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function TCPURamCell.Avail: boolean;
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{Indica si el registro es una dirección disponible en la memoria RAM.}
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begin
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Result := (state = cs_implemen);
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Result := (state = cs_impleGPR);
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end;
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{ TCPUCore }
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@ -239,10 +242,10 @@ begin
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end;
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staMem := copy(com, 9, 3);
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case staMem of
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'IMP': state := cs_implemen;
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'IMP': state := cs_impleGPR;
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'NIM': state := cs_unimplem;
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else
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MsjError := 'Memory definition syntax error: Expected SFR or GPR';
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MsjError := 'Memory definition syntax error: Expected IMP or NIM';
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exit(false);
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end;
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//Ya se tienen los parámetros, para definir la memoria
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@ -251,6 +254,10 @@ begin
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finally
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coms.Destroy;
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end;
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end;
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function TCPUCore.SetDataAddr(strDef: string): boolean;
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begin
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end;
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function TCPUCore.HaveConsecRAM(const i, n: word; maxRam: dword): boolean;
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{Indica si hay "n" bytes consecutivos libres en la posicióm "i", en RAM.
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@ -263,7 +270,7 @@ begin
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c := 0;
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j := i;
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while (j<=maxRam) and (c<n) do begin
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if (ram[j].state <> cs_implemen) or (ram[j].used<>ruUnused) then exit;
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if (ram[j].state <> cs_impleGPR) or (ram[j].used<>ruUnused) then exit;
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inc(c); //verifica siguiente
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inc(j);
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end;
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@ -278,7 +285,7 @@ procedure TCPUCore.UseConsecRAM(const i, n: word);
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var j: word;
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begin
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for j:=i to i+n-1 do begin
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ram[j].used := ruVar; //todos los bits
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ram[j].used := ruData; //todos los bits
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end;
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end;
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procedure TCPUCore.SetSharedUnused;
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@ -287,7 +294,7 @@ var
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i: Integer;
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begin
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for i:=0 to high(ram) do begin
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if (ram[i].state = cs_implemen) and (ram[i].shared) then begin
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if (ram[i].shared) and (ram[i].state = cs_impleGPR) then begin
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ram[i].used := ruUnused;
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end;
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end;
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@ -298,8 +305,8 @@ var
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i: Integer;
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begin
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for i:=0 to high(ram) do begin
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if (ram[i].state = cs_implemen) and (ram[i].shared) then begin
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ram[i].used := ruVar; //Set as used for variables
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if (ram[i].shared) and (ram[i].state = cs_impleGPR) then begin
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ram[i].used := ruData; //Set as used for variables
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end;
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end;
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end;
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@ -354,6 +361,7 @@ end;
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procedure TCPUCore.addTopComm(comm: string; replace: boolean);
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{Agrega un comentario de línea al código en la posición de memoria actual}
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begin
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if iRam>=CPUMAXRAM then exit;
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if replace then begin
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ram[iRam].topComment := comm;
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end else begin
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@ -3,6 +3,7 @@
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Se cambian variables a tipo dword para evitar desborde en TP6502.GetFreeBytes().
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Se cambia el tipo del campo TCPURamCell.used al enumerado TCPURamUsed, para dar más libertad
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para definir a la RAM.
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Se agrega un estado más para la memoria RAM.
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0.1
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===
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Binary file not shown.
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@ -1,7 +1,7 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<CONFIG>
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<ProjectOptions>
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<Version Value="10"/>
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<Version Value="11"/>
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<PathDelim Value="\"/>
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<General>
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<SessionStorage Value="InProjectDir"/>
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@ -9,7 +9,6 @@
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<Title Value="project1"/>
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<ResourceType Value="res"/>
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<UseXPManifest Value="True"/>
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<Icon Value="0"/>
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</General>
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<i18n>
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<EnableI18N LFM="False"/>
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@ -21,9 +20,10 @@
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<Version Value="2"/>
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</PublishOptions>
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<RunParams>
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<local>
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<FormatVersion Value="1"/>
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</local>
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<FormatVersion Value="2"/>
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<Modes Count="1">
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<Mode0 Name="default"/>
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</Modes>
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</RunParams>
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<RequiredPackages Count="1">
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<Item1>
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@ -2,7 +2,7 @@
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<CONFIG>
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<ProjectSession>
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<PathDelim Value="\"/>
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<Version Value="10"/>
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<Version Value="11"/>
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<BuildModes Active="Default"/>
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<Units Count="5">
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<Unit0>
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@ -12,7 +12,7 @@
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<WindowIndex Value="-1"/>
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<TopLine Value="-1"/>
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<CursorPos X="-1" Y="-1"/>
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<UsageCount Value="60"/>
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<UsageCount Value="61"/>
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</Unit0>
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<Unit1>
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<Filename Value="unit1.pas"/>
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@ -21,19 +21,18 @@
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<HasResources Value="True"/>
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<ResourceBaseClass Value="Form"/>
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<UnitName Value="Unit1"/>
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<TopLine Value="152"/>
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<CursorPos Y="171"/>
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<UsageCount Value="60"/>
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<IsVisibleTab Value="True"/>
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<TopLine Value="135"/>
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<CursorPos X="20" Y="154"/>
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<UsageCount Value="61"/>
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<Loaded Value="True"/>
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<LoadedDesigner Value="True"/>
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</Unit1>
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<Unit2>
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<Filename Value="..\P6502utils.pas"/>
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<IsVisibleTab Value="True"/>
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<EditorIndex Value="1"/>
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<TopLine Value="1115"/>
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<CursorPos X="24" Y="1136"/>
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<FoldState Value=" TL00C1414113 T5J0{W111 TCjEK5 T7jPJC T8jQ26132 T3m8051]ZD2]E0nFD7I2K T6n601]gHnEF%2L"/>
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<TopLine Value="178"/>
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<CursorPos X="15" Y="202"/>
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<UsageCount Value="32"/>
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<Bookmarks Count="1">
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<Item0 Y="1211" ID="1"/>
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@ -43,9 +42,8 @@
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<Unit3>
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<Filename Value="..\CPUCore.pas"/>
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<EditorIndex Value="2"/>
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<TopLine Value="37"/>
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<CursorPos X="42" Y="88"/>
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<FoldState Value=" TL0040211193 T4801 T5A[64CED8 T7dC6 T8iE230122145 T3kX0331]mHl8B4]i6lI01A T0leR3C pjAjYN3857 TDmZ2e]ZEnU]+'"/>
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<TopLine Value="98"/>
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<CursorPos X="31" Y="121"/>
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<UsageCount Value="25"/>
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<Bookmarks Count="1">
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<Item0 Y="117" ID="3"/>
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@ -60,122 +58,124 @@
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<UsageCount Value="10"/>
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</Unit4>
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</Units>
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<JumpHistory Count="30" HistoryIndex="29">
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<JumpHistory Count="29" HistoryIndex="28">
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<Position1>
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<Filename Value="..\p6502utils.pas"/>
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<Caret Line="363" Column="17" TopLine="254"/>
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<Caret Line="259" Column="21" TopLine="218"/>
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<Position2>
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<Caret Line="355" Column="65" TopLine="252"/>
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||||
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<Position3>
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||||
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||||
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||||
<Position6>
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||||
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|
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|
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|
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|
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|
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|
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|
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|
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|
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||||
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||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
<Caret Line="1134" Column="7" TopLine="1115"/>
|
||||
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|
||||
</JumpHistory>
|
||||
<RunParams>
|
||||
<FormatVersion Value="2"/>
|
||||
<Modes Count="0" ActiveMode="default"/>
|
||||
</RunParams>
|
||||
</ProjectSession>
|
||||
</CONFIG>
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||||
|
|
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|||
Binary file not shown.
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@ -8,7 +8,7 @@ object Form1: TForm1
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|||
ClientWidth = 530
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||||
OnCreate = FormCreate
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||||
OnDestroy = FormDestroy
|
||||
LCLVersion = '1.8.0.6'
|
||||
LCLVersion = '2.0.0.4'
|
||||
object Memo1: TMemo
|
||||
Left = 10
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Height = 312
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||||
|
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|
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@ -128,7 +128,7 @@ begin
|
|||
//Extract parameters
|
||||
if l = '' then begin
|
||||
//No parameters. Must be Implicit
|
||||
pic.codAsmFD(idInst, aImplicit , 0);
|
||||
pic.codAsm(idInst, aImplicit , 0);
|
||||
if pic.MsjError<>'' then begin
|
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Application.MessageBox(PChar(lin + ':' + pic.MsjError),'');
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||||
exit;
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||||
|
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@ -137,7 +137,7 @@ begin
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|||
//It's a string
|
||||
if Par = 'A' then begin
|
||||
//Accumulator mode
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||||
pic.codAsmFD(idInst, aAcumulat , 0);
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||||
pic.codAsm(idInst, aAcumulat , 0);
|
||||
if pic.MsjError<>'' then begin
|
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Application.MessageBox(PChar(lin + ':' + pic.MsjError),'');
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exit;
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|
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@ -149,14 +149,14 @@ begin
|
|||
//There is a number
|
||||
if n<256 then begin
|
||||
//Zero page. Although could be ,X
|
||||
pic.codAsmFD(idInst, aZeroPage , 0);
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||||
pic.codAsm(idInst, aZeroPage , 0);
|
||||
if pic.MsjError<>'' then begin
|
||||
Application.MessageBox(PChar(lin + ':' + pic.MsjError),'');
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||||
exit;
|
||||
end;
|
||||
end else begin
|
||||
//Absolute. Although could be ,X
|
||||
pic.codAsmFD(idInst, aAbsolute , 0);
|
||||
pic.codAsm(idInst, aAbsolute , 0);
|
||||
if pic.MsjError<>'' then begin
|
||||
Application.MessageBox(PChar(lin + ':' + pic.MsjError),'');
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||||
exit;
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||||
|
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|
|||
|
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@ -190,8 +190,8 @@ type
|
|||
function DisassemblerAt(addr: word; out nBytesProc: byte; useVarName: boolean
|
||||
): string; override;
|
||||
public //RAM memory functions
|
||||
function GetFreeByte(out addr: word; shared: boolean): boolean;
|
||||
function GetFreeBytes(const size: integer; var addr: word): boolean; //obtiene una dirección libre
|
||||
function GetFreeByte(out addr: word): boolean;
|
||||
function GetFreeBytes(const size: integer; out addr: word): boolean; //obtiene una dirección libre
|
||||
function TotalMemRAM: integer; //devuelve el total de memoria RAM
|
||||
function UsedMemRAM: word; //devuelve el total de memoria RAM usada
|
||||
procedure ExploreUsed(rutExplorRAM: TCPURutExplorRAM); //devuelve un reporte del uso de la RAM
|
||||
|
|
@ -265,7 +265,7 @@ begin
|
|||
end;
|
||||
ram[iRam].value := value;
|
||||
if isData then ram[iRam].name := 'data';
|
||||
ram[iRam].used := ruVar; //marca como usado
|
||||
ram[iRam].used := ruData; //marca como usado
|
||||
inc(iRam);
|
||||
end;
|
||||
procedure TP6502.codAsm(const inst: TP6502Inst; addMode: TP6502AddMode; param: word);
|
||||
|
|
@ -668,7 +668,9 @@ begin
|
|||
i_BEQ:; //branch on equal (zero set)
|
||||
i_BIT:; //bit test
|
||||
i_BMI:; //branch on minus (negative set)
|
||||
i_BNE:; //branch on not equal (zero clear)
|
||||
i_BNE: begin
|
||||
|
||||
end; //branch on not equal (zero clear)
|
||||
i_BPL:; //branch on plus (negative clear)
|
||||
i_BRK:; //break / interrupt
|
||||
i_BVC:; //branch on overflow clear
|
||||
|
|
@ -1138,7 +1140,7 @@ begin
|
|||
PC.W := AValue;
|
||||
end;
|
||||
//Funciones para la memoria RAM
|
||||
function TP6502.GetFreeByte(out addr: word; shared: boolean): boolean;
|
||||
function TP6502.GetFreeByte(out addr: word): boolean;
|
||||
{Devuelve una dirección libre de la memoria RAM, a partir de la dirección iRam.
|
||||
"Shared" indica que se marcará el bit como de tipo "Compartido", y se usa para el
|
||||
caso en que se quiera comaprtir la misma posición para diversos variables.
|
||||
|
|
@ -1151,12 +1153,12 @@ begin
|
|||
maxRam := CPUMAXRAM; //posición máxima
|
||||
//Realmente debería explorar solo hasta la dirección implementada, por eficiencia
|
||||
for i:=iRam to maxRam-1 do begin
|
||||
if (ram[i].state = cs_implemen) and (ram[i].used = ruUnused) then begin
|
||||
if (ram[i].state = cs_impleGPR) and (ram[i].used = ruUnused) then begin
|
||||
//Esta dirección está libre
|
||||
ram[i].used := ruVar; //marca como usado para variable
|
||||
if shared then begin
|
||||
ram[i].shared := true; //Marca como compartido
|
||||
end;
|
||||
// ram[i].used := ruData; //marca como usado para variable
|
||||
// if shared then begin
|
||||
// ram[i].shared := true; //Marca como compartido
|
||||
// end;
|
||||
addr := i;
|
||||
//Notar que la posición de memoria puede estar mapeada.
|
||||
Result := true; //indica que encontró espacio
|
||||
|
|
@ -1164,24 +1166,25 @@ begin
|
|||
end;
|
||||
end;
|
||||
end;
|
||||
function TP6502.GetFreeBytes(const size: integer; var addr: word): boolean;
|
||||
{Devuelve una dirección libre de la memoria RAM para ubicar un bloque
|
||||
del tamaño indicado. Si encuentra espacio, devuelve TRUE.
|
||||
El tamaño se da en bytes, pero si el valor es negativo, se entiende que es en bits.}
|
||||
function TP6502.GetFreeBytes(const size: integer; out addr: word): boolean;
|
||||
{Returns a free memory address of RAM to locate a block of the specified size (in bytes).
|
||||
If found returns TRUE. }
|
||||
var
|
||||
i: dword;
|
||||
maxRam: dWord;
|
||||
begin
|
||||
Result := false; //valor por defecto
|
||||
if size=0 then exit;
|
||||
if size=0 then begin
|
||||
addr := 0;
|
||||
exit(true);
|
||||
end;
|
||||
maxRam := CPUMAXRAM;
|
||||
for i:=iRam to maxRam-1 do begin //verifica 1 a 1, por seguridad
|
||||
if HaveConsecRAM(i, size, maxRam) then begin
|
||||
//encontró del tamaño buscado
|
||||
UseConsecRAM(i, size); //marca como usado
|
||||
//UseConsecRAM(i, size); //marca como usado
|
||||
addr := i;
|
||||
Result := true; //indica que encontró espacio
|
||||
exit;
|
||||
exit(true);
|
||||
end;
|
||||
end;
|
||||
end;
|
||||
|
|
@ -1222,7 +1225,7 @@ begin
|
|||
end;
|
||||
end;
|
||||
function TP6502.ValidRAMaddr(addr: word): boolean;
|
||||
{Indica si la dirección indicada es válida dentro del hardware del PIC}
|
||||
{Indica si la dirección indicada es válida dentro del hardware del CPU}
|
||||
begin
|
||||
if addr > CPUMAXRAM then exit(false); //excede límite
|
||||
exit(true);
|
||||
|
|
@ -1251,7 +1254,7 @@ begin
|
|||
comLat := ram[i].sideComment;
|
||||
comLin := ram[i].topComment;
|
||||
//Verifica si es variable
|
||||
if ram[i].used = ruVar then begin
|
||||
if ram[i].used in [ruData, ruAbsData] then begin
|
||||
//Escribe en forma de variable
|
||||
if incAdrr then begin
|
||||
if comLin<>'' then lOut.add(comLin);
|
||||
|
|
@ -1314,7 +1317,7 @@ begin
|
|||
maxUsed := 0;
|
||||
//Busca dirección de inicio usada
|
||||
for i := 0 to CPUMAXRAM-1 do begin
|
||||
if ram[i].used<>ruUnused then begin
|
||||
if ram[i].used in [ruCode, ruData] then begin
|
||||
if i<minUsed then minUsed := i;
|
||||
if i>maxUsed then maxUsed := i;
|
||||
end;
|
||||
|
|
@ -1338,7 +1341,7 @@ begin
|
|||
SetLength(ram, CPUMAXRAM);
|
||||
//inicia una configuración común
|
||||
ClearMemRAM;
|
||||
SetStatRAM($020, $04F, cs_implemen);
|
||||
SetStatRAM($020, $04F, cs_impleGPR);
|
||||
|
||||
//Estado inicial
|
||||
iRam := 0; //posición de inicio
|
||||
|
|
@ -1564,7 +1567,7 @@ begin
|
|||
PIC16InstName[i_TYA].name := 'TYA'; //Transfer Index Y to Accumulator
|
||||
PIC16InstName[i_TYA].AddAddressMode(aImplicit,$98,1,2,'');
|
||||
|
||||
PIC16InstName[i_Inval].name := 'Inval';
|
||||
PIC16InstName[i_Inval].name := 'Inv';
|
||||
|
||||
|
||||
end;
|
||||
|
|
|
|||
Loading…
Reference in New Issue