diff --git a/chess/chess.cpp b/chess/chess.cpp
index 2386b7f..18e0ff3 100644
--- a/chess/chess.cpp
+++ b/chess/chess.cpp
@@ -286,6 +286,8 @@ void game_init(game_state& game_state)
   game_state.halfmove_number = 0;
   game_state.fullmove_number = 0;
   game_state.interaction.selected_position = -1;
+  game_state.interaction.last_move.from_position = -1;
+  game_state.interaction.last_move.to_position = -1;
   board_init(game_state);
 }
 
@@ -411,6 +413,8 @@ void do_move(game_state& game_state, int8_t from_position, move_t& move)
   destination.piece_list_offset = origin.piece_list_offset;
   origin.type = piece_type::empty;
   game_state.piece_list.piece[origin.piece_list_offset] = &destination;
+  game_state.interaction.last_move.from_position = from_position;
+  game_state.interaction.last_move.to_position = move.to_position;
 
   game_state.turn = -game_state.turn;
 }
@@ -443,4 +447,23 @@ void select_position(game_state& game_state, int8_t x, int8_t y)
   game_state.interaction.moves.length = 0;
 }
 
+void clear_annotations(game_state& game_state)
+{
+  game_state.interaction.annotation_list.length = 0;
+}
+
+void annotate_position(game_state& game_state, int8_t x, int8_t y)
+{
+  int8_t position = xy_to_position(x, y);
+  auto& annotation_list = game_state.interaction.annotation_list;
+
+  for (int i = 0; i < annotation_list.length; i++) {
+    if (annotation_list.annotation[i].from_position == position) {
+      return;
+    }
+  }
+
+  annotation_list.annotation[annotation_list.length++].from_position = position;
+}
+
 }
diff --git a/chess/chess.hpp b/chess/chess.hpp
index eecc96e..f4ba3fa 100644
--- a/chess/chess.hpp
+++ b/chess/chess.hpp
@@ -57,9 +57,30 @@ struct moves_list {
   int8_t length;
 };
 
+enum struct annotation_type : int8_t {
+  highlight,
+  arrow,
+};
+
+struct annotation {
+  annotation_type type;
+  int8_t from_position;
+  int8_t to_position;
+};
+
+struct annotation_list {
+  struct annotation annotation[127];
+  int8_t length;
+};
+
 struct interaction_state {
+  struct {
+    int8_t from_position;
+    int8_t to_position;
+  } last_move;
   int8_t selected_position;
   struct moves_list moves;
+  struct annotation_list annotation_list;
 };
 
 struct game_state {
@@ -74,9 +95,11 @@ struct game_state {
 
 xy position_to_xy(int8_t position);
 int8_t xy_to_position(int8_t x, int8_t y);
-void game_init(game_state& game_state);
-void select_position(game_state& game_state, int8_t x, int8_t y);
 int8_t piece_list_to_position(const chess::board_state& board_state,
 			      chess::piece * piece);
+void game_init(game_state& game_state);
+void select_position(game_state& game_state, int8_t x, int8_t y);
+void annotate_position(game_state& game_state, int8_t x, int8_t y);
+void clear_annotations(game_state& game_state);
 
 }
diff --git a/chess/chess.mk b/chess/chess.mk
index 052f496..7d95d79 100644
--- a/chess/chess.mk
+++ b/chess/chess.mk
@@ -21,7 +21,7 @@ CHESS_GEOMETRY = \
 	chess/rook.hpp \
 	chess/square.hpp \
 	chess/circle.hpp \
-	chess/cursor.hpp
+	chess/pointer.hpp
 
 chess/render.o: chess/render.cpp $(CHESS_GEOMETRY)
 
diff --git a/chess/cursor.hpp b/chess/cursor.hpp
deleted file mode 100644
index 78311ac..0000000
--- a/chess/cursor.hpp
+++ /dev/null
@@ -1,26 +0,0 @@
-#pragma once
-
-#include "geometry/geometry.hpp"
-
-namespace cursor {
-  constexpr vec3 vertices[] = {
-    {  0.407995f, -0.805648f,  2.000000f },
-    {  0.000000f,  0.000000f,  2.000000f },
-    {  0.550770f, -0.527772f,  2.000000f },
-    {  0.302290f, -0.556623f,  2.000000f },
-    {  0.297535f, -0.852536f,  2.000000f },
-    {  0.000000f, -0.762211f,  2.000000f },
-    {  0.191836f, -0.603526f,  2.000000f },
-  };
-
-  constexpr face_v faces[] = {
-    {{1}, {6}, {0}},
-    {{3}, {2}, {1}},
-    {{1}, {5}, {6}},
-    {{6}, {4}, {0}},
-    {{0}, {3}, {1}},
-  };
-
-  constexpr uint32_t num_faces = (sizeof (faces)) / (sizeof (face_v));
-
-}
diff --git a/chess/cursor.obj b/chess/cursor.obj
deleted file mode 100644
index 870e10a..0000000
--- a/chess/cursor.obj
+++ /dev/null
@@ -1,16 +0,0 @@
-# Blender 3.3.6
-# www.blender.org
-o Cursor
-v 0.407995 -0.805648 2.000000
-v 0.000000 0.000000 2.000000
-v 0.550770 -0.527772 2.000000
-v 0.302290 -0.556623 2.000000
-v 0.297535 -0.852536 2.000000
-v 0.000000 -0.762211 2.000000
-v 0.191836 -0.603526 2.000000
-s 0
-f 2 7 1
-f 4 3 2
-f 2 6 7
-f 7 5 1
-f 1 4 2
diff --git a/chess/main.cpp b/chess/main.cpp
index 57a1f68..9046576 100644
--- a/chess/main.cpp
+++ b/chess/main.cpp
@@ -22,26 +22,29 @@
 #include "sh7091/store_queue.hpp"
 #include "sh7091/serial.hpp"
 
-#include "render.hpp"
-#include "input.hpp"
+#include "chess/chess.hpp"
+#include "chess/render.hpp"
+#include "chess/input.hpp"
 
-struct button {
-  bool a;
-  bool b;
-};
-
-struct cursor {
-  float x;
-  float y;
-  struct button button[2];
-};
-
-void cursor_update(chess::game_state& game_state, struct cursor& cursor, uint32_t frame_ix)
+void cursor_update(struct render::cursor_state& cursor_state, uint32_t frame_ix)
 {
   for (int port_ix = 0; port_ix < 4; port_ix++) {
+    int cursor_ix = cursor_state.port_map[port_ix];
+    if (cursor_ix == -1)
+      continue;
+    auto& cursor = cursor_state.cur[cursor_ix];
+
     auto& port = input::state.port[port_ix];
     if (port.function_type & function_type::controller) {
-
+      auto& bus_data = port.host_response_data_transfer_ft0->bus_data;
+      auto& data_fields = bus_data.data_fields;
+      if (std::byteswap(data_fields.function_type) & function_type::controller) {
+	auto& data = data_fields.data;
+	cursor.x += static_cast<float>(data.analog_coordinate_axis[2] - 0x80) *  0.0035;
+	cursor.y += static_cast<float>(data.analog_coordinate_axis[3] - 0x80) * -0.0035;
+	cursor.button[frame_ix].a = ft0::data_transfer::digital_button::a(data.digital_button) == 0;
+	cursor.button[frame_ix].b = ft0::data_transfer::digital_button::b(data.digital_button) == 0;
+      }
     }
     if (port.function_type & function_type::pointing) {
       auto& bus_data = port.host_response_data_transfer_ft9->bus_data;
@@ -50,20 +53,27 @@ void cursor_update(chess::game_state& game_state, struct cursor& cursor, uint32_
 	auto& data = data_fields.data;
 	cursor.x += static_cast<float>(data.analog_coordinate_axis[0] - 0x200) *  0.0035;
 	cursor.y += static_cast<float>(data.analog_coordinate_axis[1] - 0x200) * -0.0035;
-	cursor.button[frame_ix].a = ft9::data_transfer::button::a(data.button) == 0;
-	cursor.button[frame_ix].b = ft9::data_transfer::button::b(data.button) == 0;
+	cursor.button[frame_ix].a = ft9::data_transfer::digital_button::a(data.digital_button) == 0;
+	cursor.button[frame_ix].b = ft9::data_transfer::digital_button::b(data.digital_button) == 0;
       }
     }
   }
+}
 
-  uint32_t last_frame = (frame_ix + 1) & 1;
-  if (cursor.button[last_frame].a != cursor.button[frame_ix].a && cursor.button[frame_ix].a) {
-    int8_t x = cursor.x + 0.5f;
-    int8_t y = cursor.y + 0.5f;
-    chess::select_position(game_state, x, y);
-  }
-  if (cursor.button[last_frame].b != cursor.button[frame_ix].b && cursor.button[frame_ix].b) {
-    serial::string("b\n");
+void cursor_events(chess::game_state& game_state, struct render::cursor_state& cursor_state, uint32_t frame_ix)
+{
+  for (int cursor_ix = 0; cursor_ix < render::cursor_state::num_cursors; cursor_ix++) {
+    auto& cursor = cursor_state.cur[cursor_ix];
+    const uint32_t last_frame = (frame_ix + 1) & 1;
+    const int8_t x = cursor.x + 0.5f;
+    const int8_t y = cursor.y + 0.5f;
+    if (cursor.button[last_frame].a != cursor.button[frame_ix].a && cursor.button[frame_ix].a) {
+      chess::clear_annotations(game_state);
+      chess::select_position(game_state, x, y);
+    }
+    if (cursor.button[last_frame].b != cursor.button[frame_ix].b && cursor.button[frame_ix].b) {
+      chess::annotate_position(game_state, x, y);
+    }
   }
 }
 
@@ -73,13 +83,13 @@ void main()
 
   constexpr uint32_t ta_alloc = ta_alloc_ctrl::pt_opb::no_list
                               | ta_alloc_ctrl::tm_opb::no_list
-                              | ta_alloc_ctrl::t_opb::no_list
+                              | ta_alloc_ctrl::t_opb::_16x4byte
                               | ta_alloc_ctrl::om_opb::no_list
-                              | ta_alloc_ctrl::o_opb::_16x4byte;
+                              | ta_alloc_ctrl::o_opb::no_list;
 
-  constexpr struct opb_size opb_size = { .opaque = 16 * 4
+  constexpr struct opb_size opb_size = { .opaque = 0
                                        , .opaque_modifier = 0
-                                       , .translucent = 0
+                                       , .translucent = 16 * 4
                                        , .translucent_modifier = 0
                                        , .punch_through = 0
                                        };
@@ -102,31 +112,29 @@ void main()
 
   uint32_t frame_ix = 0;
 
-  struct cursor cursor;
-  cursor.x = 4.f;
-  cursor.y = 4.f;
+  struct render::view_transform vt;
+  vt.piece_rotation = 0.f;
+  vt.board_rotation = 0.f;
+
+  struct render::cursor_state cursor_state = render::cursor_state();
 
   while (true) {
     input::state_update(send_buf, recv_buf);
-    cursor_update(game_state, cursor, frame_ix);
+    cursor_update(cursor_state, frame_ix);
+    cursor_events(game_state, cursor_state, frame_ix);
 
     ta_polygon_converter_init(opb_size.total(),
                               ta_alloc,
                               640 / 32,
                               480 / 32);
 
-    render::draw_board();
-    if (game_state.interaction.selected_position != -1)
-      render::draw_illumination(game_state.interaction.selected_position);
-    render::draw_pieces(game_state);
-    render::draw_moves(game_state.interaction.moves);
-    render::draw_cursor(cursor.x, cursor.y);
+    render::render(game_state, vt, cursor_state);
 
     *reinterpret_cast<ta_global_parameter::end_of_list *>(store_queue) =
       ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
     sq_transfer_32byte(ta_fifo_polygon_converter);
 
-    ta_wait_opaque_list();
+    ta_wait_translucent_list();
 
     core_start_render(frame_ix);
     core_wait_end_of_render_video();
diff --git a/chess/cursor.blend b/chess/pointer.blend
similarity index 73%
rename from chess/cursor.blend
rename to chess/pointer.blend
index ceeace3..ab34813 100644
Binary files a/chess/cursor.blend and b/chess/pointer.blend differ
diff --git a/chess/pointer.hpp b/chess/pointer.hpp
new file mode 100644
index 0000000..cef95fd
--- /dev/null
+++ b/chess/pointer.hpp
@@ -0,0 +1,26 @@
+#pragma once
+
+#include "geometry/geometry.hpp"
+
+namespace pointer {
+  constexpr vec3 vertices[] = {
+    {  0.407995f, -0.805648f, -0.000000f },
+    {  0.000000f,  0.000000f,  0.000000f },
+    {  0.550770f, -0.527772f, -0.000000f },
+    {  0.302290f, -0.556623f, -0.000000f },
+    {  0.297535f, -0.852536f, -0.000000f },
+    {  0.000000f, -0.762211f,  0.000000f },
+    {  0.191836f, -0.603526f,  0.000000f },
+  };
+
+  constexpr face_v faces[] = {
+    {{1}, {6}, {0}},
+    {{3}, {2}, {1}},
+    {{1}, {5}, {6}},
+    {{6}, {4}, {0}},
+    {{0}, {3}, {1}},
+  };
+
+  constexpr uint32_t num_faces = (sizeof (faces)) / (sizeof (face_v));
+
+}
diff --git a/chess/pointer.obj b/chess/pointer.obj
new file mode 100644
index 0000000..f91ef1f
--- /dev/null
+++ b/chess/pointer.obj
@@ -0,0 +1,16 @@
+# Blender 3.3.6
+# www.blender.org
+o Pointer
+v 0.407995 -0.805648 -0.000000
+v 0.000000 0.000000 0.000000
+v 0.550770 -0.527772 -0.000000
+v 0.302290 -0.556623 -0.000000
+v 0.297535 -0.852536 -0.000000
+v 0.000000 -0.762211 0.000000
+v 0.191836 -0.603526 0.000000
+s 0
+f 2 7 1
+f 4 3 2
+f 2 6 7
+f 7 5 1
+f 1 4 2
diff --git a/chess/render.cpp b/chess/render.cpp
index fd123b4..d063304 100644
--- a/chess/render.cpp
+++ b/chess/render.cpp
@@ -6,7 +6,7 @@
 #include "chess/rook.hpp"
 #include "chess/square.hpp"
 #include "chess/circle.hpp"
-#include "chess/cursor.hpp"
+#include "chess/pointer.hpp"
 
 #include "sh7091/store_queue.hpp"
 #include "sh7091/serial.hpp"
@@ -16,41 +16,77 @@
 #include "holly/ta_global_parameter.hpp"
 #include "holly/ta_vertex_parameter.hpp"
 
-#include "render.hpp"
+#include "chess/chess.hpp"
+#include "chess/render.hpp"
 
 namespace render {
 
-static inline vec3 transform(const vec3 v, float cell_x, float cell_y, float scale)
-{
-  float x = v.x * 28.f * scale;
-  float y = -v.y * 28.f * scale;
-  x += 124.f + cell_x * 56.f;
-  y +=  44.f + (7 - cell_y) * 56.f;
+constexpr float board_z = 100.f;
+constexpr float illumination_z = 99.f;
+constexpr float piece_z = 70.f;
+constexpr float move_z = 50.f;
+constexpr float cursor_z = 0.f;
 
-  return {x, y, 1.f/(v.z + 10.0f)};
+vec3 __attribute__ ((noinline))
+transform(view_transform vt,
+	  const vec3 v,
+	  float cell_x,
+	  float cell_y,
+	  float z_offset,
+	  float scale,
+	  float rotation)
+{
+  float x0 = v.x;
+  float y0 = -v.y;
+
+  // piece rotation
+  float x1 = x0 * __builtin_cosf(rotation) - y0 * __builtin_sinf(rotation);
+  float y1 = x0 * __builtin_sinf(rotation) + y0 * __builtin_cosf(rotation);
+
+  float x2 = x1 * 28.f * scale;
+  float y2 = y1 * 28.f * scale;
+
+  float x3 = x2 + (cell_x    ) * 56.f - (196.f);
+  float y3 = y2 + (7 - cell_y) * 56.f - (196.f);
+
+  float x4 = x3 * __builtin_cosf(vt.board_rotation) - y3 * __builtin_sinf(vt.board_rotation);
+  float y4 = x3 * __builtin_sinf(vt.board_rotation) + y3 * __builtin_cosf(vt.board_rotation);
+
+  float x5 = x4 + 124.f + (196.f);
+  float y5 = y4 +  44.f + (196.f);
+
+  float z = v.z + z_offset;
+
+  return {x5, y5, 1.f/(z + 10.0f)};
 }
 
-static void draw_model(vec3 const * const vertices,
+static void draw_model(const view_transform vt,
+		       vec3 const * const vertices,
 		       face_v const * const faces,
 		       uint32_t num_faces,
 		       uint32_t base_color,
 		       float cell_x,
 		       float cell_y,
+		       float z_offset,
 		       float scale,
-		       bool always)
+		       float rotation,
+		       bool always,
+		       bool alpha = false)
 {
   const uint32_t parameter_control_word = para_control::para_type::polygon_or_modifier_volume
-                                        | para_control::list_type::opaque
+                                        | para_control::list_type::translucent
                                         | obj_control::col_type::packed_color;
 
-  const uint32_t isp_tsp_instruction_word = (always ? isp_tsp_instruction_word::depth_compare_mode::always
+  const uint32_t isp_tsp_instruction_word = (always ? isp_tsp_instruction_word::depth_compare_mode::greater
 					            : isp_tsp_instruction_word::depth_compare_mode::greater)
                                           | isp_tsp_instruction_word::culling_mode::no_culling;
 
-  const uint32_t tsp_instruction_word = tsp_instruction_word::src_alpha_instr::one
-                                      | tsp_instruction_word::dst_alpha_instr::zero
-                                      | tsp_instruction_word::fog_control::no_fog;
-
+  const uint32_t tsp_instruction_word = (alpha ? tsp_instruction_word::src_alpha_instr::src_alpha
+ 					       : tsp_instruction_word::src_alpha_instr::one)
+                                      | (alpha ? tsp_instruction_word::dst_alpha_instr::inverse_src_alpha
+					       : tsp_instruction_word::dst_alpha_instr::zero)
+                                      | tsp_instruction_word::fog_control::no_fog
+				      | tsp_instruction_word::use_alpha;
 
   for (uint32_t face_ix = 0; face_ix < num_faces; face_ix++) {
 
@@ -69,7 +105,13 @@ static void draw_model(vec3 const * const vertices,
     constexpr uint32_t strip_length = 3;
     for (uint32_t i = 0; i < strip_length; i++) {
       uint32_t vertex_ix = face[i].vertex;
-      const auto vertex = transform(vertices[vertex_ix], cell_x, cell_y, scale);
+      const auto vertex = transform(vt,
+				    vertices[vertex_ix],
+				    cell_x,
+				    cell_y,
+				    z_offset,
+				    scale,
+				    rotation);
 
       bool end_of_strip = i == strip_length - 1;
       float z = __builtin_fabsf(vertices[vertex_ix].z);
@@ -83,7 +125,7 @@ static void draw_model(vec3 const * const vertices,
   }
 }
 
-void draw_board()
+void draw_board(const view_transform vt)
 {
   for (int i = 0; i < 8 * 8; i++) {
     int x = i % 8;
@@ -94,98 +136,129 @@ void draw_board()
     constexpr uint32_t green = 0xff739552;
     uint32_t color = white ? cream : green;
 
-    draw_model(square::vertices,
+    draw_model(vt,
+	       square::vertices,
 	       square::faces,
 	       square::num_faces,
 	       color,
 	       x, y,
+	       board_z,
 	       1.0f,  // scale
+	       0.0f,  // rotation
 	       true); // always
 
   }
 }
 
-void draw_illumination(int8_t position)
+void draw_illumination(const view_transform vt,
+		       int8_t position, uint32_t highlight_color)
 {
   auto [x, y] = chess::position_to_xy(position);
 
-  constexpr uint32_t cream = 0xfff5f681;
-  draw_model(square::vertices,
+  draw_model(vt,
+	     square::vertices,
 	     square::faces,
 	     square::num_faces,
-	     cream,
+	     highlight_color,
 	     x, y,
+	     illumination_z,
 	     1.0f,  // scale
-	     true); // always
+	     0.0f,  // rotation
+	     true,  // always
+	     true); // alpha
 }
 
-void draw_moves(chess::moves_list& moves)
+void draw_moves(const view_transform vt,
+		const chess::moves_list& moves)
 {
   for (int i = 0; i < moves.length; i++) {
     chess::xy move_xy = chess::position_to_xy(moves.moves[i].to_position);
 
-    uint32_t color = 0xff777777;
-    draw_model(circle::vertices,
+    uint32_t color = 0x37000000;
+    draw_model(vt,
+	       circle::vertices,
 	       circle::faces,
 	       circle::num_faces,
 	       color,
 	       move_xy.x, move_xy.y,
-	       0.5f,  // scale
-	       true); // always
+	       move_z,
+	       0.4f,  // scale
+	       0.0f,  // rotation
+	       true,  // always
+	       true); // alpha
   }
 }
 
-void draw_piece(int8_t type, int8_t x, int8_t y)
+void draw_piece(const view_transform vt,
+		int8_t type, int8_t x, int8_t y)
 {
   bool white = type > 0;
   uint32_t color = white ? 0xffdddddd : 0xff444444;
   switch (__builtin_abs(type)) {
   case chess::piece_type::pawn:
-    draw_model(pawn::vertices,
+    draw_model(vt,
+	       pawn::vertices,
 	       pawn::faces,
 	       pawn::num_faces,
 	       color, x, y,
+	       piece_z,
 	       1.0f,  // scale
+	       vt.piece_rotation,  // rotation
 	       false); // always
     break;
   case chess::piece_type::knight:
-    draw_model(knight::vertices,
+    draw_model(vt,
+	       knight::vertices,
 	       knight::faces,
 	       knight::num_faces,
 	       color, x, y,
+	       piece_z,
 	       1.0f,  // scale
+	       vt.piece_rotation,  // rotation
 	       false); // always
     break;
   case chess::piece_type::bishop:
-    draw_model(bishop::vertices,
+    draw_model(vt,
+	       bishop::vertices,
 	       bishop::faces,
 	       bishop::num_faces,
 	       color, x, y,
+	       piece_z,
 	       1.0f,  // scale
+	       vt.piece_rotation,  // rotation
 	       false); // always
     break;
   case chess::piece_type::rook:
-    draw_model(rook::vertices,
+    draw_model(vt,
+	       rook::vertices,
 	       rook::faces,
 	       rook::num_faces,
 	       color, x, y,
+	       piece_z,
 	       1.0f,  // scale
+	       vt.piece_rotation,  // rotation
 	       false); // always
     break;
   case chess::piece_type::queen:
-    draw_model(queen::vertices,
+    draw_model(vt,
+	       queen::vertices,
 	       queen::faces,
 	       queen::num_faces,
 	       color, x, y,
+	       piece_z,
 	       1.0f,  // scale
+	       vt.piece_rotation,  // rotation
 	       false); // always
     break;
   case chess::piece_type::king:
-    draw_model(king::vertices,
+    draw_model(vt,
+	       king::vertices,
 	       king::faces,
 	       king::num_faces,
 	       color, x, y,
+	       piece_z,
 	       1.0f,  // scale
+	       vt.piece_rotation,  // rotation
 	       false); // always
     break;
   default:
@@ -193,27 +266,92 @@ void draw_piece(int8_t type, int8_t x, int8_t y)
   }
 }
 
-void draw_pieces(const chess::game_state& game_state)
+void draw_pieces(const view_transform vt,
+		 const chess::game_state& game_state)
 {
   const auto& piece_list = game_state.piece_list;
   for (int i = 0; i < piece_list.length; i++) {
     chess::piece * piece = piece_list.piece[i];
     int8_t position = piece_list_to_position(game_state.board, piece);
     auto [x, y] = chess::position_to_xy(position);
-    draw_piece(piece->type, x, y);
+    draw_piece(vt,
+	       piece->type,
+	       x, y);
   }
 }
 
-void draw_cursor(float x, float y)
+uint32_t cursor_colors[4] = {
+  0xffff00ff,
+  0xff00ff00,
+  0xffffff00,
+  0xffff0000,
+};
+
+void draw_cursor(const view_transform vt,
+		 float x, float y,
+		 int cursor_index)
 {
-  uint32_t color = 0xffff00ff;
-  draw_model(cursor::vertices,
-	     cursor::faces,
-	     cursor::num_faces,
-	     color,
+  constexpr float pi = 3.141592653589793f;
+
+  draw_model(vt,
+	     pointer::vertices,
+	     pointer::faces,
+	     pointer::num_faces,
+	     cursor_colors[cursor_index % 4],
 	     x, y,
+	     cursor_z,
 	     1.0f,  // scale
+	     pi * cursor_index, // rotation
 	     true); // always
 }
 
+
+void draw_annotation(const view_transform vt,
+		     const chess::annotation_list& annotation_list)
+{
+  constexpr uint32_t red_highlight = 0xcceb6150;
+
+  for (int i = 0; i < annotation_list.length; i++) {
+    auto& annotation = annotation_list.annotation[i];
+    switch (annotation.type) {
+    case chess::annotation_type::highlight:
+      render::draw_illumination(vt,
+				annotation.from_position,
+				red_highlight);
+      break;
+    default: break;
+    }
+  }
+}
+
+void draw_interaction(const view_transform vt,
+		      const chess::interaction_state& interaction)
+{
+  constexpr uint32_t yellow_highlight = 0x7fffff33;
+
+  if (interaction.selected_position != -1)
+    render::draw_illumination(vt, interaction.selected_position, yellow_highlight);
+  if (interaction.last_move.from_position != -1)
+    render::draw_illumination(vt, interaction.last_move.from_position, yellow_highlight);
+  if (interaction.last_move.to_position != -1)
+    render::draw_illumination(vt, interaction.last_move.to_position, yellow_highlight);
+}
+
+void render(const chess::game_state& game_state,
+	    const view_transform vt,
+	    const cursor_state cursor_state)
+{
+  render::draw_board(vt);
+
+  render::draw_interaction(vt, game_state.interaction);
+  render::draw_annotation(vt, game_state.interaction.annotation_list);
+
+  render::draw_pieces(vt, game_state);
+  render::draw_moves(vt, game_state.interaction.moves);
+  for (int i = 0; i < cursor_state::num_cursors; i++) {
+    auto& cursor = cursor_state.cur[i];
+    render::draw_cursor(vt, cursor.x, cursor.y, i);
+  }
+}
+
 } // namespace render
diff --git a/chess/render.hpp b/chess/render.hpp
index 01c663c..184fc26 100644
--- a/chess/render.hpp
+++ b/chess/render.hpp
@@ -2,14 +2,52 @@
 
 #include <cstdint>
 
-#include "chess.hpp"
+#include "chess/chess.hpp"
 
 namespace render {
 
-void draw_board();
-void draw_illumination(int8_t position);
-void draw_moves(chess::moves_list& moves);
-void draw_pieces(const chess::game_state& game_state);
-void draw_cursor(float x, float y);
+struct view_transform {
+  float piece_rotation;
+  float board_rotation;
+};
+
+struct button {
+  bool a;
+  bool b;
+};
+
+struct cursor {
+  float x;
+  float y;
+  struct button button[2];
+
+  constexpr cursor()
+    : x(4.f), y(4.f)
+  {
+    button[0] = {false, false};
+    button[1] = {false, false};
+  }
+};
+
+struct cursor_state {
+  constexpr static int num_cursors = 2;
+
+  struct cursor cur[num_cursors];
+  int port_map[4];
+
+  constexpr cursor_state()
+  {
+    port_map[0] = 0;
+    port_map[1] = 1;
+    port_map[2] = -1;
+    port_map[3] = -1;
+    cur[0] = cursor();
+    cur[1] = cursor();
+  }
+};
+
+void render(const chess::game_state& game_state,
+	    const view_transform vt,
+	    const cursor_state cursor_state);
 
 }
diff --git a/maple/maple_bus_ft0.hpp b/maple/maple_bus_ft0.hpp
index 753a748..f6a7d26 100644
--- a/maple/maple_bus_ft0.hpp
+++ b/maple/maple_bus_ft0.hpp
@@ -55,12 +55,7 @@ namespace ft0 {
 
     struct data_format {
       uint16_t digital_button;
-      uint8_t analog_axis_1;
-      uint8_t analog_axis_2;
-      uint8_t analog_axis_3;
-      uint8_t analog_axis_4;
-      uint8_t analog_axis_5;
-      uint8_t analog_axis_6;
+      uint8_t analog_coordinate_axis[6];
     };
     static_assert((sizeof (struct data_format)) % 4 == 0);
     static_assert((sizeof (struct data_format)) == 8);
diff --git a/maple/maple_bus_ft9.hpp b/maple/maple_bus_ft9.hpp
index d2abd1f..d586610 100644
--- a/maple/maple_bus_ft9.hpp
+++ b/maple/maple_bus_ft9.hpp
@@ -2,7 +2,7 @@
 
 namespace ft9 {
   namespace data_transfer {
-    namespace button {
+    namespace digital_button {
       constexpr uint32_t r() { return 0b1 << 7; }
       constexpr uint32_t r(uint32_t reg) { return (reg >> 7) & 0b1; }
 
@@ -39,7 +39,7 @@ namespace ft9 {
     }
 
     struct data_format {
-      uint8_t button;
+      uint8_t digital_button;
       uint8_t option;
       uint8_t analog_coordinate_overflow;
       uint8_t reserved;
diff --git a/regs/maple_bus_ft0.csv b/regs/maple_bus_ft0.csv
index a081908..36b6f41 100644
--- a/regs/maple_bus_ft0.csv
+++ b/regs/maple_bus_ft0.csv
@@ -1,9 +1,9 @@
 "data_transfer",7,6,5,4,3,2,1,0
 "digital_button","Ra","La","Da","Ua","Start","A","B","C"
 "digital_button","Rb","Lb","Db","Ub","D","X","Y","Z"
-"analog_axis_1",,,,,,,,
-"analog_axis_2",,,,,,,,
-"analog_axis_3",,,,,,,,
-"analog_axis_4",,,,,,,,
-"analog_axis_5",,,,,,,,
-"analog_axis_6",,,,,,,,
+"analog_coordinate_axis",,,,,,,,
+"analog_coordinate_axis",,,,,,,,
+"analog_coordinate_axis",,,,,,,,
+"analog_coordinate_axis",,,,,,,,
+"analog_coordinate_axis",,,,,,,,
+"analog_coordinate_axis",,,,,,,,
diff --git a/regs/maple_bus_ft0.ods b/regs/maple_bus_ft0.ods
index 2cbaf1a..36a8ebf 100644
Binary files a/regs/maple_bus_ft0.ods and b/regs/maple_bus_ft0.ods differ
diff --git a/regs/maple_bus_ft9.csv b/regs/maple_bus_ft9.csv
index a24c916..78ad170 100644
--- a/regs/maple_bus_ft9.csv
+++ b/regs/maple_bus_ft9.csv
@@ -1,5 +1,5 @@
 "data_transfer",7,6,5,4,3,2,1,0
-"button","r","l","d","u","s","a","b","c"
+"digital_button","r","l","d","u","s","a","b","c"
 "option",,,,,,,"batt","wire"
 "analog_coordinate_overflow",,,,,,,,
 "reserved",,,,,,,,
diff --git a/regs/maple_bus_ft9.ods b/regs/maple_bus_ft9.ods
index 1184608..78d4038 100644
Binary files a/regs/maple_bus_ft9.ods and b/regs/maple_bus_ft9.ods differ
diff --git a/text_editor/keyboard.cpp b/text_editor/keyboard.cpp
index 3d846c2..38fb6d6 100644
--- a/text_editor/keyboard.cpp
+++ b/text_editor/keyboard.cpp
@@ -9,30 +9,75 @@
 
 #include "keyboard.hpp"
 
-void keyboard_do_get_condition(ft6::data_transfer::data_format& data)
+void do_device_request()
 {
   uint32_t send_buf[1024] __attribute__((aligned(32)));
   uint32_t recv_buf[1024] __attribute__((aligned(32)));
 
   auto writer = maple::host_command_writer(send_buf, recv_buf);
 
-  using command_type = get_condition;
-  using response_type = data_transfer<ft6::data_transfer::data_format>;
+  using command_type = maple::device_request;
+  using response_type = maple::device_status;
 
   auto [host_command, host_response]
     = writer.append_command_all_ports<command_type, response_type>();
+
+  maple::dma_start(send_buf, writer.send_offset,
+                   recv_buf, writer.recv_offset);
+
+  for (uint8_t port = 0; port < 1; port++) {
+    auto& bus_data = host_response[port].bus_data;
+    auto& data_fields = bus_data.data_fields;
+    if (bus_data.command_code != response_type::command_code) {
+      serial::string("port: ");
+      serial::integer<uint8_t>(port);
+      serial::string("  disconnected\n");
+    } else {
+      serial::string("port: ");
+      serial::integer<uint8_t>(port);
+      serial::string("  ft:    ");
+      serial::integer<uint32_t>(std::byteswap(data_fields.device_id.ft));
+      serial::string("  fd[0]: ");
+      serial::integer<uint32_t>(std::byteswap(data_fields.device_id.fd[0]));
+      serial::string("  fd[1]: ");
+      serial::integer<uint32_t>(std::byteswap(data_fields.device_id.fd[1]));
+      serial::string("  fd[2]: ");
+      serial::integer<uint32_t>(std::byteswap(data_fields.device_id.fd[2]));
+      serial::string("  source_ap.lm_bus: ");
+      serial::integer<uint8_t>(bus_data.source_ap & ap::lm_bus::bit_mask);
+    }
+  }
+}
+
+void keyboard_do_get_condition(ft6::data_transfer::data_format& data)
+{
+  uint32_t send_buf[1024] __attribute__((aligned(32)));
+  uint32_t recv_buf[1024] __attribute__((aligned(32)));
+
+  using command_type = maple::get_condition;
+  using response_type = maple::data_transfer<ft6::data_transfer::data_format>;
+
+  auto writer = maple::host_command_writer(send_buf, recv_buf);
+
+  auto [host_command, host_response]
+    = writer.append_command_all_ports<command_type, response_type>();
+
   host_command->bus_data.data_fields.function_type = std::byteswap(function_type::keyboard);
 
   maple::dma_start(send_buf, writer.send_offset,
                    recv_buf, writer.recv_offset);
 
-  for (uint8_t port = 0; port < 4; port++) {
+  for (uint8_t port = 0; port < 1; port++) {
     auto& bus_data = host_response[port].bus_data;
     auto& data_fields = bus_data.data_fields;
+    //serial::integer(port, ' ');
+    //serial::integer(bus_data.command_code);
     if (bus_data.command_code != response_type::command_code) {
+      do_device_request();
       continue;
     }
     if ((std::byteswap(data_fields.function_type) & function_type::keyboard) == 0) {
+      serial::integer(std::byteswap(data_fields.function_type));
       continue;
     }
 
@@ -61,9 +106,9 @@ void keyboard_debug(ft6::data_transfer::data_format * keyboards, uint32_t frame_
   }
   if (difference) {
     for (int i = 0; i < 6; i++) {
-      serial::integer<uint8_t>(keyboards[this_frame].scan_code_array[i], ' ');
+      //serial::integer<uint8_t>(keyboards[this_frame].scan_code_array[i], ' ');
     }
-    serial::string("\n");
+    //serial::string("\n");
   }
 }
 
@@ -97,10 +142,14 @@ void keyboard_update(ft6::data_transfer::data_format * keyboards, uint32_t frame
 	bool shifted = is_shifted(keyboards[this_frame].modifier_key);
 	char_type code_point = ft6::scan_code::code_point[scan_code][shifted];
 	if (code_point != 0) {
-	  gap_append(gb, code_point);
+	  serial::character(code_point);
+	  serial::character('\n');
+	  //gap_append(gb, code_point);
 	  continue;
 	}
       }
+      serial::integer(scan_code);
+      continue;
       switch (scan_code) {
 	case ft6::scan_code::_return:   gap_append(gb, '\n'); break;
 	case ft6::scan_code::backspace: gap_pop(gb);          break;
diff --git a/text_editor/render.cpp b/text_editor/render.cpp
index 937c0cd..3ad6d4d 100644
--- a/text_editor/render.cpp
+++ b/text_editor/render.cpp
@@ -3,6 +3,8 @@
 #include "transform.hpp"
 
 #include "holly/ta_global_parameter.hpp"
+#include "holly/ta_fifo_polygon_converter.hpp"
+#include "sh7091/serial.hpp"
 
 static inline uint32_t get_font_ix(const struct font * font,
 				   char_type c)
@@ -115,7 +117,19 @@ void render(ta_parameter_writer& parameter,
 
   parameter.append<ta_global_parameter::end_of_list>() = ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
 
+  ta_polygon_converter_transfer(parameter.buf, parameter.offset);
+  ta_wait_opaque_list();
+
+  parameter.offset = 0;
+
+  /*
   render_cursor(parameter, cursor, window);
 
   parameter.append<ta_global_parameter::end_of_list>() = ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
+
+  ta_polygon_converter_transfer(parameter.buf, parameter.offset);
+  serial::string("wait tl\n");
+  ta_wait_translucent_list();
+  serial::string("done tl\n");
+  */
 }
diff --git a/text_editor/text_editor.cpp b/text_editor/text_editor.cpp
index 6fbe1dc..45f52b5 100644
--- a/text_editor/text_editor.cpp
+++ b/text_editor/text_editor.cpp
@@ -15,6 +15,8 @@
 #include "holly/ta_global_parameter.hpp"
 #include "holly/ta_bits.hpp"
 
+#include "sh7091/serial.hpp"
+
 #include "font/font.hpp"
 
 #include "ter_u20n.hpp"
@@ -78,13 +80,13 @@ void main()
 
   constexpr uint32_t ta_alloc = ta_alloc_ctrl::pt_opb::no_list
                               | ta_alloc_ctrl::tm_opb::no_list
-                              | ta_alloc_ctrl::t_opb::_16x4byte
+    //| ta_alloc_ctrl::t_opb::_16x4byte
                               | ta_alloc_ctrl::om_opb::no_list
                               | ta_alloc_ctrl::o_opb::_16x4byte;
 
   constexpr struct opb_size opb_size = { .opaque = 16 * 4
                                        , .opaque_modifier = 0
-				       , .translucent = 16 * 4
+				       //, .translucent = 16 * 4
                                        , .translucent_modifier = 0
                                        , .punch_through = 0
                                        };
@@ -118,9 +120,6 @@ void main()
     auto parameter = ta_parameter_writer(ta_parameter_buf);
     render(parameter, font, glyphs, state.gb, state.window);
 
-    ta_polygon_converter_transfer(parameter.buf, parameter.offset);
-    ta_wait_opaque_list();
-
     core_start_render(frame_ix);
     core_wait_end_of_render_video();
 
diff --git a/text_editor/text_editor.mk b/text_editor/text_editor.mk
index a3e5a4b..ff9bced 100644
--- a/text_editor/text_editor.mk
+++ b/text_editor/text_editor.mk
@@ -11,7 +11,8 @@ TEXT_EDITOR_OBJ = \
 	holly/ta_fifo_polygon_converter.o \
 	maple/maple.o \
 	sh7091/serial.o \
-	ter_u20n.data.o
+	ter_u20n.data.o \
+	$(LIBGCC)
 
 text_editor/text_editor.elf: LDSCRIPT = $(LIB)/main.lds
 text_editor/text_editor.elf: $(START_OBJ) $(TEXT_EDITOR_OBJ)
diff --git a/text_editor/transform.cpp b/text_editor/transform.cpp
index e472aa9..d3ba0ec 100644
--- a/text_editor/transform.cpp
+++ b/text_editor/transform.cpp
@@ -100,7 +100,7 @@ void transform_glyph(ta_parameter_writer& parameter,
   const uint32_t texture_address = texture_memory_alloc::texture.start;
   const uint32_t texture_control_word = texture_control_word::pixel_format::_4bpp_palette
 				      | texture_control_word::scan_order::twiddled
-                                      | texture_control_word::palette_selector(0)
+                                      | texture_control_word::palette_selector4(0)
 				      | texture_control_word::texture_address(texture_address / 8);
 
   parameter.append<ta_global_parameter::sprite>() =