52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
/*******************************************************************************/
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/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
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/* */
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#include "types.h"
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#define opBufSz 32
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#define decodeSIB() \
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base = r32[*b&0x07]; \
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indx = r32[(*b&0x38)>>3]; \
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scale = ((*b&0xc0)>>6)*2; \
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if(scale && !indx){ \
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print("Invalid SIB byte."); \
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return; \
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}
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#define setG() \
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reg = (*b&0x38)>>3; \
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if(!Gsz){ \
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} else if(Gsz == 1){ \
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G = r8[reg]; \
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} else if(Gsz == 2){ \
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G = r16[reg]; \
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} else if(Gsz == 3){ \
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G = r32[reg]; \
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} else if(Gsz == 4){ \
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if(reg < 8){ \
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G = rseg[reg]; \
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} else{ \
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print("Invalid Mod R/M byte."); \
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return; \
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} \
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} else{ \
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print("Invalid Mod R/M byte."); \
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return; \
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}
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#define DBG_EXEC 0b00
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#define DBG_WRITE 0b01
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#define DBG_CLEAR 0b10
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#define DBG_READWRITE 0b11
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#define DBG_ONEBYTE 0b00
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#define DBG_TWOBYTE 0b01
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#define DBG_FOURBYTE 0b11
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void setdebugreg(u8 number,u8 *address, u8 type);
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u8* getdebugreg(u8 number);
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u32 disasm(u8 *a, u8 *string, bool show);
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