154 lines
4.6 KiB
C
154 lines
4.6 KiB
C
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// $Header: G:/SwDev/WDM/Video/bt848/rcs/Command.h 1.4 1998/04/29 22:43:31 tomz Exp $
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#ifndef __COMMAND_H
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#define __COMMAND_H
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#ifndef __MEM_H
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#include <memory.h>
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#endif
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#include "mytypes.h"
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#define PROGRAM_TERMINATOR 0xa5a5a5a5
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/* Type: Instruction
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* Purpose: enumerates all RISC commands
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*/
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typedef enum
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{
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WRIT = 0x01, SKIP = 0x02, WRITEC = 0x05,
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JUMP = 0x07, SYNC = 0x08, WRITE123 = 0x09,
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SKIP123 = 0x0A, WRITE1S23 = 0x0B, Reserved = 0xFF
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} Instruction;
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/* Type: SyncCode
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* Purpose: enumerates all sync codes coming out of decoder
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*/
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typedef enum
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{
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SC_FM1 = 0x6, SC_FM3 = 0xE, SC_VRE = 0x4,
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SC_VRO = 0xC, SC_RESYNC = 1, SC_Reserved = 0xFF
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} SyncCode;
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/* Class: Command
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* Purpose: This class represents a RISC instruction in a more convenient form
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* Attributes:
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* Operations:
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*/
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class Command
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{
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public:
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typedef union tag {
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struct {
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unsigned int ByteCount : 12;
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unsigned int BE_Res : 4;
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unsigned int StatusSet : 4;
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unsigned int StatusReset : 4;
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unsigned int IRQ : 1;
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unsigned int Reserved : 1;
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unsigned int EOL : 1;
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unsigned int SOL : 1;
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unsigned int OpCode : 4;
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} Gen;
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struct {
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unsigned int Status : 4;
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unsigned int Res1 : 11;
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unsigned int Resync : 1;
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unsigned int StatusSet : 4;
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unsigned int StatusReset : 4;
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unsigned int IRQ : 1;
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unsigned int Res2 : 1;
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unsigned int EOL : 1;
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unsigned int SOL : 1;
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unsigned int OpCode : 4;
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} Sync;
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struct {
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unsigned int ByteCountCb : 12;
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unsigned int skip : 4;
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unsigned int ByteCountCr : 12;
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} CRByteCounts;
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DWORD Initer; // used to zero out all the fields
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} FIRSTDWORD, *LPFIRSTDWORD;
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private:
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Instruction ThisInstr_;
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static BYTE InstrSize_ [];
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static BYTE InstrNumber_ [];
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PDWORD pdwInstrAddr_;
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public:
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Instruction GetInstr() { return ThisInstr_; }
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PDWORD GetInstrAddr() { return pdwInstrAddr_; }
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BYTE GetInstrSize() { return InstrSize_ [InstrNumber_ [ThisInstr_] ]; }
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BYTE GetInstrSize( Instruction inst )
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{ return InstrSize_ [InstrNumber_ [inst] ]; }
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LPVOID Create( LPVOID lpDst, Instruction Instr, WORD wByteCnt [],
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DWORD dwAddress [], bool SafetyDevice = true,
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bool SOL = true, bool EOL = true, bool Intr = false );
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// start/end of line control
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void SetSOL( PVOID lpFD ) { ((LPFIRSTDWORD)lpFD)->Gen.SOL = 1; }
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void ResetSOL( PVOID lpFD ) { ((LPFIRSTDWORD)lpFD)->Gen.SOL = 0; }
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void SetEOL( PVOID lpFD ) { ((LPFIRSTDWORD)lpFD)->Gen.EOL = 1; }
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void ResetEOL( PVOID lpFD ) { ((LPFIRSTDWORD)lpFD)->Gen.EOL = 0; }
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void SetIRQ( PVOID lpFD ) { ((LPFIRSTDWORD)lpFD)->Gen.IRQ = 1; }
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void ResetIRQ( PVOID lpFD ) { ((LPFIRSTDWORD)lpFD)->Gen.IRQ = 0; }
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void SetStatus( PVOID lpFD, int s )
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{
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((LPFIRSTDWORD)lpFD)->Gen.StatusSet = s;
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((LPFIRSTDWORD)lpFD)->Gen.StatusReset = 0;
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}
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void ResetStatus( PVOID lpFD, int s )
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{
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((LPFIRSTDWORD)lpFD)->Gen.StatusReset = s;
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((LPFIRSTDWORD)lpFD)->Gen.StatusSet = 0;
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}
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void SetToCount( PVOID lpFD )
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{
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((LPFIRSTDWORD)lpFD)->Gen.StatusReset = 0xF;
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((LPFIRSTDWORD)lpFD)->Gen.StatusSet = 0xF;
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}
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// eol/sol query
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bool IsEOL( PVOID lpFD ) { return bool( ((LPFIRSTDWORD)lpFD)->Gen.EOL ); }
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bool IsSOL( PVOID lpFD ) { return bool( ((LPFIRSTDWORD)lpFD)->Gen.SOL ); }
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bool IsIRQ( PVOID lpFD ) { return bool( ((LPFIRSTDWORD)lpFD)->Gen.IRQ ); }
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WORD GetStatus( PVOID lpFD )
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{
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return WORD( ( ((LPFIRSTDWORD)lpFD)->Gen.StatusSet << 4 ) |
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((LPFIRSTDWORD)lpFD)->Gen.StatusReset );
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}
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WORD GetSyncStatus( PVOID lpFD )
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{ return (WORD)((LPFIRSTDWORD)lpFD)->Sync.Status; }
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void SetSync( PVOID lpFD, SyncCode eACode, bool Resync = false ) {
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((LPFIRSTDWORD)lpFD)->Sync.Status = eACode;
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((LPFIRSTDWORD)lpFD)->Sync.Resync = Resync;
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}
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void SetResync( PVOID lpFD, bool val )
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{ ((LPFIRSTDWORD)lpFD)->Sync.Resync = val; }
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bool GetResync( PVOID lpFD )
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{ return bool( ((LPFIRSTDWORD)lpFD)->Sync.Resync ); }
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Command(){}// { Init(); }
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Command( Instruction instr ) : ThisInstr_( instr ) {}
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};
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#endif __COMMAND_H
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