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[/] [ao486/] [trunk/] [rtl/] [ao486/] [commands/] [CMD_PUSHF.txt] - Rev 2
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<defines>
`define CMD_PUSHF #AUTOGEN_NEXT_CMD
</defines>
<decode>
dec_ready_one && decoder[7:0] == 8'h9C
`CMD_PUSHF
SET(consume_one);
</decode>
<read>
IF(rd_cmd == `CMD_PUSHF);
SET(rd_req_memory);
SET(rd_req_esp);
ENDIF();
</read>
<execute>
IF(exe_cmd == `CMD_PUSHF);
SET(exe_result_push, exe_pushf_eflags);
IF(exe_mutex_current[`MUTEX_ESP_BIT] || exe_mutex_current[`MUTEX_EFLAGS_BIT]); SET(exe_waiting);
ELSE();
IF(v8086_mode && iopl < 2'd3);
SET(exe_waiting);
SET(exe_trigger_gp_fault);
ENDIF(); //exception GP(0)
ENDIF();
ENDIF();
</execute>
<write>
IF(wr_cmd == `CMD_PUSHF);
SET(wr_push_ss_fault_check);
SET(wr_one_cycle_wait);
IF(~(write_for_wr_ready)); SET(wr_waiting); ENDIF();
IF(~(wr_push_ss_fault));
SET(write_stack_virtual);
ENDIF();
IF(write_for_wr_ready && ~(wr_push_ss_fault));
SAVE(esp, wr_stack_esp);
ENDIF();
ENDIF();
</write>