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https://opencores.org/ocsvn/ao486/ao486/trunk
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[/] [ao486/] [trunk/] [rtl/] [ao486/] [commands/] [CMD_CLTS.txt] - Rev 6
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<defines>
`define CMD_CLTS #AUTOGEN_NEXT_CMD
`define CMDEX_CLTS_STEP_FIRST 4'd0
`define CMDEX_CLTS_STEP_LAST 4'd1
</defines>
<decode>
dec_ready_2byte_one && decoder[7:0] == 8'h06
`CMD_CLTS
SET(dec_cmdex,`CMDEX_CLTS_STEP_FIRST);
SET(consume_one);
SET(dec_is_complex);
</decode>
<microcode>
`CMDEX_CLTS_STEP_FIRST
LOOP(`CMDEX_CLTS_STEP_LAST);
</microcode>
<execute>
IF(exe_cmd == `CMD_CLTS);
IF(cpl > 2'd0);
SET(exe_waiting);
SET(exe_trigger_gp_fault); //exception GP(0)
ENDIF();
ENDIF();
</execute>
<write>
IF(wr_cmd == `CMD_CLTS);
SAVE(cr0_ts, `FALSE);
// every modification to cr0 clears the pipeline
SET(wr_req_reset_micro);
SET(wr_req_reset_rd);
SET(wr_req_reset_exe);
ENDIF();
</write>
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