Mano pdp8 VirtualMano.cc
VirtualMano.cc
// Virtual for Mano Basic Computer
//
// Changes to execute programs one at a time.
#ifndef VIRTUALMANO_CC
#define VIRTUALMANO_CC
#ifndef MANO_H
#include "mano.h"
#endif
#ifndef ASSEMBLERMANO_CC
#include "AssemblerMano.cc"
#endif
#ifndef COMPUTERMANO_CC
#include "ComputerMano.cc"
#endif
#ifndef INSTRUCTIONWORD_CC
#include "InstructionWord.cc"
#endif
#ifndef LIST_CC
#include "list.cc"
#endif
#ifndef QUEUE_CC
#include "queue.cc"
#endif
#ifndef CHAR_STRING_CC
#include "charString.cc"
#endif
#ifndef SYMBOLTABLE_CC
#include "SymbolTable.cc"
#endif
#ifndef PROGRAMLINE_CC
#include "ProgramLine.cc"
#endif
#include <iostream.h>
#include <fstream.h>
class VirtualMano;
istream& operator >>( istream& IS, VirtualMano &VM );
class VirtualMano {
int i_mEND; // End program flag
int i_mHLT; // HLT=0 no HLT yet, HLT=1 HLT encountered
int i_LocationCounter; // Location Counter (LC)
AssemblerMano AM_AssemblerMano;
ComputerMano Mano_Computer;
list<SymbolTable> list_SymbolTable;
queue<ProgramLine> queue_Program;
queue<InstructionWord> queue_AssemblyCode;
friend istream& operator >>( istream& IS, VirtualMano &VM )
{
// Input portion
if( DEBUG ) cout << "VirtualMano: >> 0" << endl;
if( IS )
{
if( DEBUG ) cout << "VirtualMano: >> 1" << endl;
VM.InPut( IS );
if( DEBUG ) cout << "VirtualMano: >> 2" << endl;
}
if( DEBUG ) cout << "VirtualMano: >> 3" << endl;
return IS;
} // >>
void ErrorHandler( int i_Error, short s_location )
{
if( DEBUG ) cout << " VirtualMano: ErrorHandler 0" << endl;
switch( i_Error )
{
case ADDRESS_OVER_MAX:
cout << " ERROR: Address greater than 4095. Line Number " << s_location << endl;
break;
case ADDRESS_UNDER_MIN:
cout << " ERROR: Address less than 0. Line Number " << s_location << endl;
break;
case INVALID_COMMAND:
cout << " ERROR: Invalid Command. Line Number " << s_location << endl;
break;
case INVALID_DEC_INSTRUCTION:
cout << " ERROR: Invalid DEC Instruction. Line Number " << s_location << endl;
break;
case INVALID_END_INSTRUCTION:
cout << " ERROR: Invalid END Instruction. Line Number " << s_location << endl;
break;
case INVALID_HEX_INSTRUCTION:
cout << " ERROR: Invalid HEX Instruction. Line Number " << s_location << endl;
break;
case INVALID_HLT_INSTRUCTION:
cout << " ERROR: Invalid HLT Instruction. Line Number " << s_location << endl;
break;
case INVALID_LABEL:
cout << " ERROR: Invalid Label. Line Number " << s_location << endl;
break;
case INVALID_NUMBER_FORMAT:
cout << " ERROR: Invalid Number Format. Line Number " << s_location << endl;
break;
case INVALID_OCT_INSTRUCTION:
cout << " ERROR: Invalid OCT Instruction. Line Number " << s_location << endl;
break;
case INVALID_ORG_INSTRUCTION:
cout << " ERROR: Invalid ORG Instruction. Line Number " << s_location << endl;
break;
case INVALID_PSEUDO_INSTRUCTION:
cout << " ERROR: Invalid Pseudo Instruction. Line Number " << s_location << endl;
break;
case MEMORY_LOAD_ERROR:
cout << " ERROR: Error Allocating Memory. Line Number " << s_location << endl;
break;
case NO_END:
cout << " ERROR: No END Command. Line Number " << s_location << endl;
break;
case NO_HALT:
cout << " ERROR: No HLT Command. Line Number " << s_location << endl;
break;
case NON_PSEUDO_INSTRUCTION:
cout << " ERROR: NON Pseudo Instruction. Line Number " << s_location << endl;
break;
case NUMBER_OVER_MAX:
cout << " ERROR: Number Over 32768. Line Number " << s_location << endl;
break;
case NUMBER_UNDER_MINUS_MIN:
cout << " ERROR: Number Less Than -32767. Line Number " << s_location << endl;
break;
case ORG_OVER_4095:
cout << " ERROR: ORG Past Address 4095. Line Number " << s_location << endl;
break;
case ORG_UNDER_0:
cout << " ERROR: ORG Under Address 0. Line Number " << s_location << endl;
break;
case TOO_MANY_LINES:
cout << " ERROR: More than 4096 code lines. line number " << s_location << endl;
break;
case VALID_DEC_INSTRUCTION:
cout << " ERROR: Valid DEC Instruction. Line Number " << s_location << endl;
break;
case VALID_END_INSTRUCTION:
cout << " ERROR: Valid END Instruction line number " << s_location << endl;
break;
case VALID_HEX_INSTRUCTION:
cout << " ERROR: Valid HEX Instruction line number " << s_location << endl;
break;
case VALID_HLT_INSTRUCTION:
cout << " ERROR: Valid HLT Instruction line number " << s_location << endl;
break;
case VALID_OCT_INSTRUCTION:
cout << " ERROR: Valid OCT Instruction line number " << s_location << endl;
break;
case VALID_PSEUDO_INSTRUCTION:
cout << " ERROR: Valid Pseudo Instruction line number " << s_location << endl;
break;
default:
;
}
if( DEBUG ) cout << " VirtualMano: ErrorHandler 1" << endl;
} // ErrorHandler
void manual()
{
// manual for Virtual Mano Computer
if( DEBUG ) cout << " VirtualMano: manual 0" << endl;
cout << "TABLE 5,6 Control Functions and Microoperations for the Basic Computer" << endl;
cout << "Fetch R'T0: AR<-PC" << endl;
cout << " R'T1: IR <- M[AR], PC<-PC + 1" << endl;
cout << endl;
cout << "Decode R'T2: D0,...,D7<-Decode IR(12-14)," << endl;
cout << " AR<-IR(O-11), I<-IR(15)" << endl;
cout << "Indirect D'7IT3: AR<-M[AR]" << endl;
cout << "Interrupt:" << endl;
cout << " T'0T'1T'2(IEN)(FGI + FGO): R<-l" << endl;
cout << " RT0: AR<-O, TR<-PC" << endl;
cout << " RT1: M[AR]<-TR, PC<-O" << endl;
cout << " RT2: PC<-PC+l, IEN<-O, R<-O, SC<-0" << endl;
cout << "Memory-reference:" << endl;
cout << " AND DoT4: DR <-M[AR]" << endl;
cout << " DoT5: AC-ACADR, SC<-O" << endl;
cout << " ADD D1T4: DR<-M[AR]" << endl;
cout << " D1T5: AC-AC+DR, E<-cout, SC<-0" << endl;
cout << " LDA D2T4: DR<-M[AR]" << endl;
cout << " D2T5: AC<-DR, SC<-0" << endl;
cout << " STA D3T4: M[AR]<-AC, SC<-0" << endl;
cout << " BUN D4T4: PC<-AR, SC<-0" << endl;
cout << " BSA D5T4: M[AR]<-PC, AR<-AR+1" << endl;
cout << " D5T5: PC<-AR, SC<-0" << endl;
cout << " ISZ D6T4: DR<-M[AR]" << endl;
cout << " D6T5: DR<-DR+1" << endl;
cout << " D6T6: M[AR]<-DR, if(DR=0)then(PC<-PC+1), SC<-0" << endl;
cout << "Register-reference:" << endl;
cout << endl;
cout << " D7I'T3 = r (common to all register-reference instructions)" << endl;
cout << " IR(i) = Bi (i = 0,1,2,...,11)" << endl;
cout << " r: SC<-0" << endl;
cout << " CLA rB11: AC-0" << endl;
cout << " CLE rB10: E<-0" << endl;
cout << " CMA rB9: AC<-AC (complement)" << endl;
cout << " CME rB8: E<-E (complement)" << endl;
cout << " CIR rB7: AC-shr AC, AC(15)<-E, E<-AC(0)" << endl;
cout << " CIL rB6: AC<-shl AC, AC(0)<-E, E<-AC(15)" << endl;
cout << " INC rB5: AC<-AC + 1" << endl;
cout << " SPA rB4: If (AC(15) = 0) then (PC <-PC + 1)" << endl;
cout << " SNA rB3: If (AC(15) = 1) then (PC <-PC + 1)" << endl;
cout << " SZA rB2: If (AC = 0) then PC<-PC + 1)" << endl;
cout << " SZE rB1: If (E = 0) then (PC<-PC + 1)" << endl;
cout << " HLT rB0: S<-0" << endl;
cout << "Input-0utput:" << endl;
cout << " D7IT3 = p (common to all input-output instructions)" << endl;
cout << " IR(i) = Bi (i = 6,7,8,9,10,11)" << endl;
cout << " p: SC-0" << endl;
cout << " INP pB11: AC(0-7)<-INPR, FGI<-0" << endl;
cout << " 0UT pB10: 0UTR<-AC(0-7), FG0<-0" << endl;
cout << " SKI pB9: If (FGI = 1) then (PC<-PC + 1)" << endl;
cout << " SK0 pB8: If (FG0 1) then (PC<-PC + 1)" << endl;
cout << " I0N pB7: IEN<-1" << endl;
cout << " I0F pB6: IEN<-0" << endl;
}
public:
VirtualMano()
{
i_mEND = 0;
i_mHLT = 0;
i_LocationCounter = 0;
}
~VirtualMano(){}
VirtualMano(const VirtualMano& M )
{
i_mEND = M.i_mEND;
i_mHLT = M.i_mHLT;
i_LocationCounter = M.i_LocationCounter;
Mano_Computer = M.Mano_Computer;
list_SymbolTable = M.list_SymbolTable;
queue_Program = M.queue_Program;
queue_AssemblyCode = M.queue_AssemblyCode;
}
istream& InPut( istream& IFstream )
{
short s_LineCounter = 0; // Counts Absolute Program Lines
// including comments and blanks.
short s_ProgramLine = 0; // Code lines
// Input portion
if( DEBUG ) cout << " Virtual: InPut 0" << endl;
if( IFstream.good() )
{
while( IFstream.good() )
{
s_LineCounter++; // increment file line counter
charString charString_Temp;
if( DEBUG ) cout << " Virtual: InPut 0" << endl;
IFstream >> charString_Temp;
charString_Temp.purge();
if( DEBUG ) cout << " Virtual: InPut 1.0 " << charString_Temp << endl;
if( charString_Temp.Search( "/" ) ) // skip comments
continue;
if( DEBUG ) cout << " Virtual: InPut 1.1 " << charString_Temp << endl;
charString_Temp.trim(); // clear white space
if( DEBUG ) cout << " Virtual: InPut 1.2 " << charString_Temp << endl;
if( charString_Temp.length() == 0 ) // skip blanks
continue;
if( DEBUG ) cout << " Virtual: InPut 1.3" << charString_Temp << endl;
s_ProgramLine++;
ProgramLine PL = ProgramLine( charString_Temp, s_ProgramLine, s_LineCounter );
if( DEBUG ) cout << " Virtual: InPut 1.4 " << endl;
queue_Program.enqueue( PL );
if( DEBUG ) cout << " Virtual: InPut 1.5 " << endl;
} // while loop
if( DEBUG ) cout << " Virtual: InPut 3.0 Program Lines " << s_ProgramLine << endl;
if( DEBUG ) cout << " Virtual: InPut 3.1 queue size " << queue_Program.census() << endl;
if( AM_AssemblerMano.AssembleProgram( queue_Program ) )
{
if( DEBUG ) cout << " Virtual: InPut 3.2" << endl;
queue_AssemblyCode = AM_AssemblerMano.GetAssemblyCode();
if( DEBUG ) cout << " Virtual: InPut 3.3 " << queue_AssemblyCode.census() << endl;
Mano_Computer.load( queue_AssemblyCode );
Mano_Computer.run();
}
if( DEBUG ) cout << " Virtual: InPut 4" << endl;
}
// else
// manual( );
// Output portion
// cout << Mano_Computer;
if( DEBUG ) cout << " Virtual: InPut 5 " << s_LineCounter << " lines" << endl;
return IFstream;
} // InPut
void OutPut()
{
if( DEBUG )
cout << " VirtualMano: OutPut 0" << endl;
cout << queue_Program;
cout << Mano_Computer;
} // OutPut
};
#endif // VirtualMano_CC
Internal Links
Parent Article: Mano PDP-8 Simulation Project Source Code
