Subversion Repositories ao486

<defines>
`define CMD_AAD     #AUTOGEN_NEXT_CMD
`define CMD_AAM     #AUTOGEN_NEXT_CMD
</defines>

<decode>
dec_ready_one_one && decoder[7:0] == 8'hD5
`CMD_AAD
SET(dec_is_8bit);
SET(consume_one_one);
</decode>

<decode>
dec_ready_one_one && decoder[7:0] == 8'hD4
`CMD_AAM
SET(dec_is_8bit);
SET(consume_one_one);
</decode>

<read>
IF(rd_cmd == `CMD_AAM || rd_cmd == `CMD_AAD);
    
    SET(rd_src_is_imm);
    SET(rd_dst_is_eax);
       
    SET(rd_req_eflags);
    SET(rd_req_eax);
        
    IF(rd_mutex_busy_eax); SET(rd_waiting); ENDIF();
ENDIF();
</read>

<execute_local>
wire [7:0] e_aad_result;

assign e_aad_result = mult_result[7:0] + dst[7:0];
</execute_local>

<execute>
IF(exe_cmd == `CMD_AAD);
    
    SET(exe_result,  { 24'd0, e_aad_result });
    SET(exe_result2, mult_result[63:32]);
    
    IF(mult_busy); SET(exe_waiting); ENDIF();
ENDIF();
</execute>

<execute>
IF(exe_cmd == `CMD_AAM);
    
    SET(exe_result,  { 16'd0, div_result_quotient[7:0], div_result_remainder[7:0] });
    SET(exe_result2, div_result_remainder);
    
    IF(exe_div_exception || div_busy); SET(exe_waiting); ENDIF();
ENDIF();
</execute>

<write>
IF(wr_cmd == `CMD_AAM || wr_cmd == `CMD_AAD);
    SAVE(eax, { eax[31:16], result[15:0] });
    
    SAVE(zflag, zflag_result);
    SAVE(sflag, sflag_result);
    SAVE(pflag, pflag_result);

    SAVE(aflag, aflag_arith);
    SAVE(cflag, cflag_arith);
    SAVE(oflag, oflag_arith);
ENDIF();
</write>