diff --git a/lib/VGA_ctrl/sim/tb_vga_frontend64.wdo b/lib/VGA_ctrl/sim/tb_vga_frontend64.wdo
index f64ce95..e03592a 100644
--- a/lib/VGA_ctrl/sim/tb_vga_frontend64.wdo
+++ b/lib/VGA_ctrl/sim/tb_vga_frontend64.wdo
@@ -19,6 +19,8 @@ add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/mdat_o
 add wave -noupdate -divider Slave
 add wave -noupdate -format Logic /tb_vga_frontend64/int_o
 add wave -noupdate -format Logic /tb_vga_frontend64/cyc_i
+add wave -noupdate -format Logic /tb_vga_frontend64/clk_o
+add wave -noupdate -format Logic /tb_vga_frontend64/inst_vga_frontend64/bus_rdy
 add wave -noupdate -format Logic /tb_vga_frontend64/stb_i
 add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/addr_i
 add wave -noupdate -format Literal /tb_vga_frontend64/sel_i
@@ -59,12 +61,6 @@ add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vg
 add wave -noupdate -divider {Blitter REGS}
 add wave -noupdate -format Logic /tb_vga_frontend64/inst_vga_frontend64/blit_reset
 add wave -noupdate -format Logic /tb_vga_frontend64/clk_o
-add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vga_frontend64/blit_addr_src_0
-add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vga_frontend64/blit_addr_src_1
-add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vga_frontend64/blit_addr_dst
-add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vga_frontend64/blit_dimx_src_0
-add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vga_frontend64/blit_dimx_src_1
-add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vga_frontend64/blit_dimx_dst
 add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vga_frontend64/blit_nx
 add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vga_frontend64/blit_ny
 add wave -noupdate -format Literal /tb_vga_frontend64/inst_vga_frontend64/blit_func_sel
@@ -85,20 +81,10 @@ add wave -noupdate -format Literal /tb_vga_frontend64/inst_vga_frontend64/blit_c
 add wave -noupdate -format Logic /tb_vga_frontend64/clk_o
 add wave -noupdate -format Literal /tb_vga_frontend64/inst_vga_frontend64/s
 add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vga_frontend64/addr_o_blit_src
-add wave -noupdate -format Literal -radix unsigned /tb_vga_frontend64/inst_vga_frontend64/blit_src_cnt_x
-add wave -noupdate -format Literal -radix unsigned /tb_vga_frontend64/inst_vga_frontend64/blit_src_cnt_y
-add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vga_frontend64/blit_src_off_y
-add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vga_frontend64/blit_src_offset
-add wave -noupdate -format Logic /tb_vga_frontend64/inst_vga_frontend64/blit_src_finish
 add wave -noupdate -divider {Blitter DST}
 add wave -noupdate -format Logic /tb_vga_frontend64/clk_o
 add wave -noupdate -format Literal /tb_vga_frontend64/inst_vga_frontend64/s
 add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vga_frontend64/addr_o_blit_dst
-add wave -noupdate -format Literal -radix unsigned /tb_vga_frontend64/inst_vga_frontend64/blit_dst_cnt_x
-add wave -noupdate -format Literal -radix unsigned /tb_vga_frontend64/inst_vga_frontend64/blit_dst_cnt_y
-add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vga_frontend64/blit_dst_off_y
-add wave -noupdate -format Literal -radix hexadecimal /tb_vga_frontend64/inst_vga_frontend64/blit_dst_offset
-add wave -noupdate -format Logic /tb_vga_frontend64/inst_vga_frontend64/blit_dst_finish
 add wave -noupdate -divider Backend
 add wave -noupdate -format Logic /tb_vga_frontend64/inst_vga_frontend64/vga_scan_rdy
 add wave -noupdate -format Logic /tb_vga_frontend64/inst_vga_frontend64/inst_vga_backend/ctrl_scan_en
@@ -116,7 +102,7 @@ add wave -noupdate -format Logic /tb_vga_frontend64/inst_vga_frontend64/cg_en
 add wave -noupdate -format Logic /tb_vga_frontend64/inst_vga_frontend64/inst_vga_backend/hready
 add wave -noupdate -format Logic /tb_vga_frontend64/inst_vga_frontend64/inst_vga_backend/vready
 TreeUpdate [SetDefaultTree]
-WaveRestoreCursors {{Cursor 1} {6730650458 ps} 0}
+WaveRestoreCursors {{Cursor 1} {457000000 ps} 0}
 configure wave -namecolwidth 150
 configure wave -valuecolwidth 100
 configure wave -justifyvalue left
@@ -130,4 +116,4 @@ configure wave -gridperiod 1
 configure wave -griddelta 40
 configure wave -timeline 0
 update
-WaveRestoreZoom {6730285480 ps} {6731219824 ps}
+WaveRestoreZoom {16785616100 ps} {20169178100 ps}