40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
/****************************************************************************
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* dcc project header
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* (C) Cristina Cifuentes, Mike van Emmerik
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****************************************************************************/
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#pragma once
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#include <stdint.h>
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#include <cstring>
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#include "machine_x86.h"
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/* STATE TABLE */
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struct STATE
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{
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uint32_t IP; /* Offset into Image */
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int16_t r[INDEX_BX_SI]; /* Value of segs and AX */
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bool f[INDEX_BX_SI]; /* True if r[.] has a value */
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struct
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{ /* For case stmt indexed reg */
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uint8_t regi; /* Last conditional jump */
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int16_t immed; /* Contents of the previous register */
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} JCond;
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void setState(uint16_t reg, int16_t value);
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void checkStartup();
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bool isKnown(eReg v) {return f[v];}
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void kill(eReg v) { f[v]=false;}
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STATE() : IP(0)
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{
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JCond.regi=0;
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JCond.immed=0;
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memset(r,0,sizeof(int16_t)*INDEX_BX_SI); //TODO: move this to machine_x86
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memset(f,0,sizeof(uint8_t)*INDEX_BX_SI);
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}
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void setMemoryByte(uint32_t addr,uint8_t val)
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{
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//TODO: make this into a full scale value tracking class !
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};
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};
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