Labels:bulletin board | crt screen | monitor | skep OCR: 8 bit data sizo 1G bit dats size IS +XB +IS+X8 Rdsip HX+ +S|+ drspt6 BX+DI BX+DI + disp BX+DI disptf Cr BP oP SI dispf Bn dispt6 DI DY AP +TJ BP+DI* s BP+DI isp BX aiso8 SI disp16 SP DI disp8 D| + isp6 CH RP uispfG (uireu1) BP + disp OP di3,p6 D HX dispi BX g;ds,p By pou -reg-rm byte mor reg bit data size 16 bit data size CX DX BX sr Bp DH BH FIGURE 7.6 The interpretation of mod reg rm byte. The poui reg byte spec ifies two operands One may reside cither T register or in memory: while the other must reside i register. The mod aad fields together specify the register 11e111ory operand while the reg field specifics the register operand Note that it's the opcode byte not the mod reg U byte, that specifies both the size of the operation which of the two operands specified by the mod reu bytc s ...
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