110 lines
3.2 KiB
C
110 lines
3.2 KiB
C
/**************************************************************************************
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*
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* DHwr.h
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*
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* Pilot debugger remote hardware/system info.
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*
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**************************************************************************************
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* MODIFICATION HISTORY
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**************************************************************************************/
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#ifndef __M68KHWR_H
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#define __M68KHWR_H
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// Pilot common definitions
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#include <Common.h>
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/***********************************************************************
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* Breakpoint words we use
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***********************************************************************/
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#define m68kTrapInstr 0x4E40
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#define m68kTrapVectorMask 0x000F
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/***********************************************************************
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* 68000 Exception Vector table
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***********************************************************************/
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typedef struct M68KExcTableType {
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DWord initStack; // initial stack pointer
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DWord initPC; // initial PC
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DWord busErr; // 08
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DWord addressErr; // 0C
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DWord illegalInstr; // 10
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DWord divideByZero; // 14
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DWord chk; // 18
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DWord trap; // 1C
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DWord privilege; // 20
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DWord trace; // 24
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DWord aTrap; // 28
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DWord fTrap; // 2C
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DWord reserved12; // 30
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DWord coproc; // 34
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DWord formatErr; // 38
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DWord unitializedInt; // 3C
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DWord reserved[8]; // 40-5C
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DWord spuriousInt; // 60
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DWord autoVec1; // 64
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DWord autoVec2; // 68
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DWord autoVec3; // 6C
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DWord autoVec4; // 70
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DWord autoVec5; // 74
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DWord autoVec6; // 78
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DWord autoVec7; // 7C
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DWord trapN[16]; // 80 - BC
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DWord unassigned[16]; // C0 - FC
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} M68KExcTableType;
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/**************************************************************************************
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* structure for the Motorolla 68000 processor registers (variables).
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*
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* WARNING:
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* This structure is used as the body of the 'read regs' command response
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* packet. Any changes to it will require changes in the nub's code.
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*
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**************************************************************************************/
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typedef struct M68KRegsType {
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DWord d[8]; /* data registers */
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DWord a[7]; /* address registers */
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DWord usp; /* user stack pointer */
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DWord ssp; /* supervisor stack pointer */
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DWord pc; /* program counter */
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Word sr; /* status register */
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} M68KRegsType;
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/**************************************************************************************
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* bit masks for testing M68000 status register fields
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**************************************************************************************/
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/* trace mode */
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#define m68kSrTraceMask 0x08000
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#define m68kSrTraceBit 15
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/* supervisor state */
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#define m68kSrSupervisorMask 0x02000
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/* interrupt mask */
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#define m68kSrInterruptMask 0x00700
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#define m68kSrInterruptOffset 8 /* offset for right-shifting interrupt mask */
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/* condition codes */
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#define m68kSrExtendMask 0x00010
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#define m68kSrNegativeMask 0x00008
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#define m68kSrZeroMask 0x00004
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#define m68kSrOverflowMask 0x00002
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#define m68kSrCarryMask 0x00001
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#endif //__M68KHWR_H
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