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[/] [ao486/] [trunk/] [rtl/] [ao486/] [commands/] [CMD_PUSHA.txt] - Blame information for rev 2

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Line No. Rev Author Line
1 2 alfik
 
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`define CMD_PUSHA       #AUTOGEN_NEXT_CMD
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`define CMDEX_PUSHA_STEP_0  4'd0
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`define CMDEX_PUSHA_STEP_1  4'd1
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`define CMDEX_PUSHA_STEP_2  4'd2
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`define CMDEX_PUSHA_STEP_3  4'd3
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`define CMDEX_PUSHA_STEP_4  4'd4
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`define CMDEX_PUSHA_STEP_5  4'd5
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`define CMDEX_PUSHA_STEP_6  4'd6
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`define CMDEX_PUSHA_STEP_7  4'd7
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dec_ready_one && decoder[7:0] == 8'h60
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`CMD_PUSHA
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SET(dec_cmdex, `CMDEX_PUSHA_STEP_0);
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SET(consume_one);
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SET(dec_is_complex);
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IF(mc_cmd == `CMD_PUSHA && mc_step < 6'd7);
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    DIRECT(mc_cmd, mc_step[3:0]);
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ENDIF();
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IF(mc_cmd == `CMD_PUSHA && mc_step == 6'd7);
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    LAST(`CMDEX_PUSHA_STEP_7);
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ENDIF();
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IF(rd_cmd == `CMD_PUSHA);
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    SET(rd_src_is_cmdex);
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    SET(rd_req_esp);
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    SET(rd_req_memory);
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    IF((rd_cmdex == `CMDEX_PUSHA_STEP_0 && rd_mutex_busy_eax) || (rd_cmdex == `CMDEX_PUSHA_STEP_1 && rd_mutex_busy_ecx) || (rd_cmdex == `CMDEX_PUSHA_STEP_2 && rd_mutex_busy_edx)); SET(rd_waiting); ENDIF();
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ENDIF();
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IF(exe_cmd == `CMD_PUSHA);
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    IF(exe_cmdex[2:0] == 3'd4);
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        SET(exe_result_push, wr_esp_prev);
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    ELSE();
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        SET(exe_result_push, src);
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    ENDIF();
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    IF(exe_mutex_current[`MUTEX_ESP_BIT]); SET(exe_waiting); ENDIF();
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ENDIF();
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IF(wr_cmd == `CMD_PUSHA);
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    SET(wr_push_ss_fault_check);
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    SET(wr_one_cycle_wait);
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    IF(~(write_for_wr_ready)); SET(wr_waiting); ENDIF();
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    IF(wr_cmdex[2:0] == 3'd0); SET(wr_make_esp_speculative); ENDIF();
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    IF(wr_cmdex[2:0] < 3'd7);
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        SET(wr_not_finished);
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    ENDIF();
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    IF(~(wr_push_ss_fault));
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        SET(write_stack_virtual);
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        SAVE(esp, wr_stack_esp);
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    ENDIF();
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    IF(wr_cmdex[2:0] == 3'd7 && write_for_wr_ready && ~(wr_push_ss_fault));
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        SET(wr_make_esp_commit);
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    ENDIF();
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ENDIF();
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