Subversion Repositories ao486

<defines>
`define CMD_CLI     #AUTOGEN_NEXT_CMD
`define CMD_STI     #AUTOGEN_NEXT_CMD
</defines>

<decode>
dec_ready_one && decoder[7:0] == 8'hFA
`CMD_CLI
SET(consume_one);
</decode>

<decode>
dec_ready_one && decoder[7:0] == 8'hFB
`CMD_STI
SET(consume_one);
</decode>

<read>
IF(rd_cmd == `CMD_CLI || rd_cmd == `CMD_STI);
    SET(rd_req_eflags);
ENDIF();
</read>

<execute>
IF(exe_cmd == `CMD_CLI || exe_cmd == `CMD_STI);
    IF(exe_mutex_current[`MUTEX_EFLAGS_BIT]); SET(exe_waiting);
    ELSE();
        IF((protected_mode && iopl < cpl) || (v8086_mode && iopl != 2'd3));
            SET(exe_waiting);
            SET(exe_trigger_gp_fault); //exception GP(0)
        ENDIF();
    ENDIF();
ENDIF();
</execute>

<write>
IF(wr_cmd == `CMD_CLI);
    SAVE(iflag, `FALSE);
ENDIF();
</write>

<write>
IF(wr_cmd == `CMD_STI);
    SAVE(iflag, `TRUE);
    
    IF(iflag == `FALSE); SET(wr_inhibit_interrupts); ENDIF();
ENDIF();
</write>