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[/] [ao486/] [trunk/] [rtl/] [ao486/] [commands/] [CMD_PUSH_MOV_SEG.txt] - Rev 2
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<defines>
`define CMD_PUSH_MOV_SEG #AUTOGEN_NEXT_CMD
`define CMDEX_PUSH_MOV_SEG_implicit 4'd0
`define CMDEX_PUSH_MOV_SEG_implicit_ES 4'd0
`define CMDEX_PUSH_MOV_SEG_implicit_CS 4'd1
`define CMDEX_PUSH_MOV_SEG_implicit_SS 4'd2
`define CMDEX_PUSH_MOV_SEG_implicit_DS 4'd3
`define CMDEX_PUSH_MOV_SEG_implicit_FS 4'd4
`define CMDEX_PUSH_MOV_SEG_implicit_GS 4'd5
`define CMDEX_PUSH_MOV_SEG_implicit_LDT 4'd6
`define CMDEX_PUSH_MOV_SEG_implicit_TR 4'd7
`define CMDEX_PUSH_MOV_SEG_modregrm 4'd8
`define CMDEX_PUSH_MOV_SEG_modregrm_ES 4'd8
`define CMDEX_PUSH_MOV_SEG_modregrm_CS 4'd9
`define CMDEX_PUSH_MOV_SEG_modregrm_SS 4'd10
`define CMDEX_PUSH_MOV_SEG_modregrm_DS 4'd11
`define CMDEX_PUSH_MOV_SEG_modregrm_FS 4'd12
`define CMDEX_PUSH_MOV_SEG_modregrm_GS 4'd13
`define CMDEX_PUSH_MOV_SEG_modregrm_LDT 4'd14
`define CMDEX_PUSH_MOV_SEG_modregrm_TR 4'd15
</defines>
<decode>
(dec_ready_one && (decoder[7:0] == 8'h06 || decoder[7:0] == 8'h16 || decoder[7:0] == 8'h0E || decoder[7:0] == 8'h1E)) || (dec_ready_2byte_one && (decoder[7:0] == 8'hA0 || decoder[7:0] == 8'hA8))
`CMD_PUSH_MOV_SEG
SET(dec_cmdex, `CMDEX_PUSH_MOV_SEG_implicit | { 1'b0, decoder[5:3] });
SET(consume_one);
</decode>
<decode>
dec_ready_modregrm_one && decoder[7:0] == 8'h8C
prefix_group_1_lock || decoder[13:11] >= 3'd6
`CMD_PUSH_MOV_SEG
SET(dec_cmdex, `CMDEX_PUSH_MOV_SEG_modregrm | { 1'b0, decoder[13:11] });
SET(consume_modregrm_one);
</decode>
<decode>
dec_ready_2byte_modregrm && decoder[7:0] == 8'h00 && decoder[13:11] == 3'd0
prefix_group_1_lock || ~(protected_mode)
`CMD_PUSH_MOV_SEG
SET(dec_cmdex, `CMDEX_PUSH_MOV_SEG_modregrm_LDT);
SET(consume_modregrm_one);
</decode>
<decode>
dec_ready_2byte_modregrm && decoder[7:0] == 8'h00 && decoder[13:11] == 3'd1
prefix_group_1_lock || ~(protected_mode)
`CMD_PUSH_MOV_SEG
SET(dec_cmdex, `CMDEX_PUSH_MOV_SEG_modregrm_TR);
SET(consume_modregrm_one);
</decode>
<read>
IF(rd_cmd == `CMD_PUSH_MOV_SEG && { rd_cmdex[3], 3'b0 } == `CMDEX_PUSH_MOV_SEG_implicit);
SET(rd_req_memory);
SET(rd_req_esp);
ENDIF();
</read>
<read>
IF(rd_cmd == `CMD_PUSH_MOV_SEG && { rd_cmdex[3], 3'b0 } == `CMDEX_PUSH_MOV_SEG_modregrm);
// dst: reg, src: seg
IF(rd_modregrm_mod == 2'b11);
SET(rd_dst_is_rm);
SET(rd_req_rm);
ENDIF();
// dst: memory, src: seg
IF(rd_modregrm_mod != 2'b11);
SET(rd_dst_is_memory);
SET(rd_req_memory);
IF(rd_mutex_busy_memory); SET(rd_waiting);
ELSE();
SET(write_virtual_check);
IF(~(write_virtual_check_ready)); SET(rd_waiting); ENDIF();
ENDIF();
ENDIF();
ENDIF();
</read>
<execute>
IF(exe_cmd == `CMD_PUSH_MOV_SEG && { exe_cmdex[3], 3'b0 } == `CMDEX_PUSH_MOV_SEG_implicit);
SET(exe_result_push, { 16'd0, e_seg_by_cmdex });
IF(exe_mutex_current[`MUTEX_ESP_BIT]); SET(exe_waiting); ENDIF();
ENDIF();
</execute>
<execute>
IF(exe_cmd == `CMD_PUSH_MOV_SEG && { exe_cmdex[3], 3'b0 } == `CMDEX_PUSH_MOV_SEG_modregrm);
SET(exe_result, { 16'd0, e_seg_by_cmdex });
ENDIF();
</execute>
<write>
IF(wr_cmd == `CMD_PUSH_MOV_SEG && { wr_cmdex[3], 3'b0 } == `CMDEX_PUSH_MOV_SEG_implicit);
SET(wr_push_length_word);
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>
<write>
IF(wr_cmd == `CMD_PUSH_MOV_SEG && { wr_cmdex[3], 3'b0 } == `CMDEX_PUSH_MOV_SEG_modregrm);
IF(wr_dst_is_memory && ~(write_for_wr_ready)); SET(wr_waiting); ENDIF();
SET(write_length_word);
SET(write_regrm, wr_dst_is_rm);
SET(write_virtual, wr_dst_is_memory);
ENDIF();
</write>