diff --git a/projects/mips_sys/sim/tb_mips_sys.wdo b/projects/mips_sys/sim/tb_mips_sys.wdo
index 5b90b51..3ecf005 100644
--- a/projects/mips_sys/sim/tb_mips_sys.wdo
+++ b/projects/mips_sys/sim/tb_mips_sys.wdo
@@ -13,11 +13,6 @@ add wave -noupdate -format Logic /tb_mips_sys/sys_lcd_e
 add wave -noupdate -format Logic /tb_mips_sys/sys_lcd_rs
 add wave -noupdate -format Logic /tb_mips_sys/sys_lcd_rw
 add wave -noupdate -format Logic /tb_mips_sys/refresh
-add wave -noupdate -format Literal /tb_mips_sys/uut/inst_sdram_ctrl_frontend64_wb/inst_sdram_ctrl/inst_sdram_ctrl/st_ctrl
-add wave -noupdate -format Literal /tb_mips_sys/uut/inst_sdram_ctrl_frontend64_wb/inst_sdram_ctrl/inst_sdram_cmd/st_sdr
-add wave -noupdate -format Literal -radix hexadecimal /tb_mips_sys/uut/inst_sdram_ctrl_frontend64_wb/inst_sdram_ctrl/inst_sdram_ctrl/u_addr
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_sdram_ctrl_frontend64_wb/inst_sdram_ctrl/inst_sdram_ctrl/u_cmd_we
-add wave -noupdate -format Literal /tb_mips_sys/uut/inst_sdram_ctrl_frontend64_wb/inst_sdram_ctrl/inst_sdram_ctrl/u_bank_addr
 add wave -noupdate -format Logic /tb_mips_sys/sys_sdr_clk_fb
 add wave -noupdate -format Logic /tb_mips_sys/sys_sdr_clk_p
 add wave -noupdate -format Logic /tb_mips_sys/sys_sdr_clk_n
@@ -31,15 +26,6 @@ add wave -noupdate -format Literal /tb_mips_sys/sys_sdr_ba_q
 add wave -noupdate -format Literal -radix hexadecimal /tb_mips_sys/sys_sdr_a_q
 add wave -noupdate -format Literal -radix hexadecimal /tb_mips_sys/sys_sdr_data
 add wave -noupdate -format Literal /tb_mips_sys/sys_sdr_dm_q
-add wave -noupdate -format Literal /tb_mips_sys/uut/inst_sdram_ctrl_frontend64_wb/u_dm_wr_in
-add wave -noupdate -format Literal /tb_mips_sys/uut/inst_sdram_ctrl_frontend64_wb/u_tag_in
-add wave -noupdate -format Literal /tb_mips_sys/uut/inst_sdram_ctrl_frontend64_wb/u_tag_rd
-add wave -noupdate -format Literal /tb_mips_sys/uut/inst_sdram_ctrl_frontend64_wb/u_tag_wr
-add wave -noupdate -format Literal -radix hexadecimal /tb_mips_sys/uut/inst_sdram_ctrl_frontend64_wb/u_data_r
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_sdram_ctrl_frontend64_wb/u_data_vld
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_sdram_ctrl_frontend64_wb/inst_sdram_ctrl/u_data_req_w
-add wave -noupdate -format Literal -radix hexadecimal /tb_mips_sys/uut/inst_sdram_ctrl_frontend64_wb/read_fifo_data_in
-add wave -noupdate -format Literal -radix hexadecimal /tb_mips_sys/uut/inst_sdram_ctrl_frontend64_wb/read_fifo_data_out
 add wave -noupdate -format Literal /tb_mips_sys/sys_error
 add wave -noupdate -format Logic /tb_mips_sys/uut/clk
 add wave -noupdate -format Literal -radix hexadecimal /tb_mips_sys/uut/addr_o
@@ -83,33 +69,6 @@ add wave -noupdate -format Logic /tb_mips_sys/uut/cyc_o_vga
 add wave -noupdate -format Logic /tb_mips_sys/uut/stb_o_vga
 add wave -noupdate -format Logic /tb_mips_sys/uut/srdy_i_vga
 add wave -noupdate -format Logic /tb_mips_sys/uut/ack_i_vga
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_vga_frontend64/fifo_full
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_vga_frontend64/fifo_empty
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_vga_frontend64/fifo_almost_empty
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_vga_frontend64/fifo_almost_full
-add wave -noupdate -format Literal /tb_mips_sys/uut/inst_vga_frontend64/request_cnt
-add wave -noupdate -format Literal /tb_mips_sys/uut/inst_vga_frontend64/read_cnt
-add wave -noupdate -format Literal /tb_mips_sys/uut/inst_vga_frontend64/s
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_vga_frontend64/vga_master_en
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_vga_frontend64/vga_scan_rdy
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_vga_frontend64/fifo_color_re
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_vga_frontend64/fifo_color_we
-add wave -noupdate -format Literal -radix hexadecimal /tb_mips_sys/uut/inst_vga_frontend64/fifo_color_out
-add wave -noupdate -format Literal -radix hexadecimal /tb_mips_sys/uut/inst_vga_frontend64/fifo_color_in
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_vga_frontend64/scan_rdy
-add wave -noupdate -format Literal -radix hexadecimal -expand /tb_mips_sys/uut/inst_vga_frontend64/color_in
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_vga_frontend64/stat_scan
-add wave -noupdate -format Literal /tb_mips_sys/uut/inst_vga_frontend64/stat_hpos
-add wave -noupdate -format Literal /tb_mips_sys/uut/inst_vga_frontend64/stat_vpos
-add wave -noupdate -format Literal /tb_mips_sys/uut/inst_vga_frontend64/odd_pixel
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_vga_frontend64/inst_linefifo/we_w
-add wave -noupdate -format Logic /tb_mips_sys/uut/inst_vga_frontend64/inst_linefifo/re_r
-add wave -noupdate -format Literal -radix unsigned /tb_mips_sys/uut/inst_vga_frontend64/inst_linefifo/ptr_w
-add wave -noupdate -format Literal -radix unsigned /tb_mips_sys/uut/inst_vga_frontend64/inst_linefifo/ptr_r
-add wave -noupdate -format Literal -radix unsigned /tb_mips_sys/uut/inst_vga_frontend64/inst_linefifo/inst_fifo_ctrl/gcnt_r
-add wave -noupdate -format Literal -radix unsigned /tb_mips_sys/uut/inst_vga_frontend64/inst_linefifo/inst_fifo_ctrl/bcnt_r
-add wave -noupdate -format Literal -radix unsigned /tb_mips_sys/uut/inst_vga_frontend64/inst_linefifo/inst_fifo_ctrl/gnxt_r
-add wave -noupdate -format Literal -radix unsigned /tb_mips_sys/uut/inst_vga_frontend64/inst_linefifo/inst_fifo_ctrl/bnxt_r
 add wave -noupdate -divider BUI
 add wave -noupdate -format Logic /tb_mips_sys/uut/clk
 add wave -noupdate -format Logic /tb_mips_sys/uut/inst_mips_top/inst_bui/cyc_o_icache
@@ -340,9 +299,9 @@ add wave -noupdate -format Literal -radix hexadecimal /tb_mips_sys/uut/inst_mips
 add wave -noupdate -format Logic /tb_mips_sys/uut/inst_mips_top/inst_bui/inst_dcache/tram_re
 add wave -noupdate -format Logic /tb_mips_sys/uut/inst_mips_top/inst_bui/inst_dcache/tram_we
 TreeUpdate [SetDefaultTree]
-WaveRestoreCursors {{Cursor 2} {49999842932 ps} 0} {{Cursor 100} {2346072600 ps} 0}
-configure wave -namecolwidth 218
-configure wave -valuecolwidth 130
+WaveRestoreCursors {{Cursor 2} {49999842932 ps} 0} {{Cursor 100} {2419775464 ps} 0}
+configure wave -namecolwidth 131
+configure wave -valuecolwidth 64
 configure wave -justifyvalue left
 configure wave -signalnamewidth 1
 configure wave -snapdistance 10
@@ -354,4 +313,4 @@ configure wave -gridperiod 100
 configure wave -griddelta 40
 configure wave -timeline 1
 update
-WaveRestoreZoom {8083733091 ps} {8083879943 ps}
+WaveRestoreZoom {0 ps} {4072824 ns}