Given the instruction format of X86 processor and codes for internal registers below REG & R/M fields OPCODE D WMOD REG R/M REG or a) Find the machine codes in Hex for MOV SI, DI and MOV DI, SI R/M when MOD=11 REG b) Find the machine codes in Hex for MOV BH, CL and MOV CL, BH W=0 W=1 R/M R/M c) Find the machine codes in Hex for ADD CX, DX and ADD BP, SP 000 AL AX 000 001 CL CX 001 Assume that the opcodes for MOV and ADD are 100000 and 000000 respectively. Also note that if you set d = 1; then the R/M field will contain code of source Register of data and REG field will hold the code of the destination register. 010 DL DX 010 011 BL BX 011 If you clear d = 0; then the REG field will contain code of source Register of data and R/M field will hold the code of the destination register. 100 АН SP 100 101 CH BP 101 110 DH SI 110 111 BH DI 111 When MOD=11. R/M acts as a REG field

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