Subversion Repositories ao486

`define CMD_RET_near    #AUTOGEN_NEXT_CMD

// glob_param_2 --> eip

`define CMDEX_RET_near                  4'd0

`define CMDEX_RET_near_imm              4'd1

`define CMDEX_RET_near_LAST             4'd2

(dec_ready_one && decoder[7:0] == 8'hC3) || (dec_ready_one_two && decoder[7:0] == 8'hC2)

`CMD_RET_near

IF(decoder[0] == 1'b0); SET(dec_cmdex, `CMDEX_RET_near_imm); ELSE(); SET(dec_cmdex, `CMDEX_RET_near); ENDIF();

IF(decoder[0] == 1'b0); SET(consume_one_two); ELSE(); SET(consume_one); ENDIF();

SET(dec_is_complex);

IF(`CMDEX_RET_near_imm);

    LAST(`CMDEX_RET_near_LAST);

ENDIF();

IF(`CMDEX_RET_near);

    LAST(`CMDEX_RET_near_LAST);

ENDIF();

IF(rd_cmd == `CMD_RET_near && rd_cmdex != `CMDEX_RET_near_LAST);

    SET(address_stack_pop);

    // waiting for esp in 'address_ready'

    SET(rd_glob_param_2_set);

    SET(rd_glob_param_2_value, (rd_operand_16bit)? { 16'd0, read_4[15:0] } : read_4);

    SET(rd_req_esp);

    IF(rd_mutex_busy_memory); SET(rd_waiting);

    ELSE();

        SET(read_virtual);

        IF(~(read_for_rd_ready)); SET(rd_waiting); ENDIF();

    ENDIF();

ENDIF();

IF(exe_cmd == `CMD_RET_near && exe_cmdex != `CMDEX_RET_near_LAST);

    IF(exe_cmdex == `CMDEX_RET_near);

        SET(offset_pop);

    ENDIF();

    IF(exe_cmdex == `CMDEX_RET_near_imm);

        SET(offset_ret);

    ENDIF();

    SET(exe_eip_from_glob_param_2);

    IF(glob_param_2 > cs_limit);

        SET(exe_waiting);

        SET(exe_trigger_gp_fault); //exception GP(0)

    ENDIF();

ENDIF();

IF(wr_cmd == `CMD_RET_near && wr_cmdex != `CMDEX_RET_near_LAST);

    SAVE(esp, wr_stack_esp);

    SET(wr_req_reset_pr);

    SET(wr_req_reset_dec);

    SET(wr_req_reset_micro);

    SET(wr_req_reset_rd);

    SET(wr_req_reset_exe);

ENDIF();