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several updates and fixes to butch and cd streaming

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This commit is contained in:
Kitrinx
2026-03-06 11:49:51 -05:00
parent cdbedee850
commit 07fcddbbc8
9 changed files with 4334 additions and 975 deletions
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871
Jaguar.sv
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2353
rtl/Rework/butch.v
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9
rtl/Rework/butch_i2s.v
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@@ -142,6 +142,7 @@ wire [7:0] p__ = fractional[17] ? cd2x ? 8'h4 : 8'h9 : p_[7:0]; // 4 or 9 less l
reg [17:0] fractional;
reg old_wsout;
// Goal = 9.279 for 2x
// Goal = 9.421 for 2x
// 2*(3+1)=8
// 2*(4+1)=10
// To increase accuracy using fractional counter instead of only alternating (alternating=(8+10)/2=9)
@@ -154,16 +155,20 @@ reg old_wsout;
// 90.703us @ x2 = 32 bytes
// 9647.5 cycles @ 106.36MHz = 90.703us
// 358200 bytes/sec at double rate
// 352800 bytes/sec at double rate
// 265909/(358.2*8) = 9.279 cycles/bit
// 265909/(352.8*8) = 9.421 cycles/bit
// 1.279 = 18'h1476D (lower 16 bits=fraction) for 2x
// 0.558 = 18'h08ED9 (lower 16 bits=fraction) for 1x
// 1.421 = 18'h16BDF (lower 16 bits=fraction) for 2x
// 0.843 = 18'h0D7BE (lower 16 bits=fraction) for 1x
// When adds to 2, overflow to p[] which has resolution of 2
always @(posedge sys_clk)
begin
old_wsout <= wsout;
if (~old_clk && clk) begin
if (~wsout != old_wsout) begin
fractional[17:0] <= fractional[16:0] + cd2x ? 18'h1476D : 18'h8ED9; // default cd speed = 1x
if (wsout != old_wsout) begin
fractional[17:0] <= fractional[16:0] + (cd2x ? 18'h16BC7 : 18'h0D7CF); // default cd speed = 1x
end
end
end

65
rtl/Rework/jaguar.v
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@@ -83,8 +83,8 @@ module jaguar
input maxc,
input auto_eeprom,
output [23:0] addr_ch3,
input [9:0] toc_addr,
input [15:0] toc_data,
input [9:0] toc_addr,
input [15:0] toc_data,
input toc_wr,
output [29:0] audbus_out,
@@ -93,10 +93,29 @@ module jaguar
input audwaitl,
output aud_ce,
input aud_busy,
input aud_sess,
input aud_sess,
input force_music_cd,
output [6:0] dbg_butch_cue_tracks,
output [6:0] dbg_butch_aud_tracks,
output [6:0] dbg_butch_dat_track,
output [7:0] dbg_butch_dsa_sessions,
output dbg_butch_sess1_valid,
output [15:0] dbg_butch_last_ds,
output [7:0] dbg_butch_last_err,
output [6:0] dbg_butch_track_idx,
output [6:0] dbg_butch_cues_addr,
output [6:0] dbg_butch_cuet_addr,
output [15:0] dbg_butch_resp_54,
output [39:0] dbg_butch_toc0,
output [39:0] dbg_butch_toc1,
output [15:0] dbg_butch_spin,
output [15:0] dbg_butch_ltoc0,
output [15:0] dbg_butch_ltoc1,
output dbg_butch_toc_ready,
input cd_en,
input cd_ex,
input cd_latency_en,
output b_override,
input dohacks,
output xvclk_o,
@@ -117,7 +136,8 @@ module jaguar
input [15:0] m68k_di,
input gamedrive_enable,
input ntsc
input ntsc,
input video_center
);
assign xvclk_o = xvclk;
@@ -419,7 +439,8 @@ assign j_xwel_0 = xwel[0]; // Write Enable
assign j_xdtackl = xdtackl; // Data Acknowledge from Tom (also goes to the 68K)
//assign j_xi2srxd = 1'b1; // (Async?) I2S receive
//assign j_xeint[0] = 1'b1; // External Interrupt
// External interrupt input follows Butch directly.
assign j_xeint[0] = b_eint;
assign j_xeint[1] = 1'b1; // External Interrupt
assign j_xtest = 1'b0; // "test" pins on both Tom and Jerry are tied to GND on the Jag
assign j_xchrin = 1'b1; // Not used
@@ -1305,7 +1326,9 @@ _tom tom_inst
.startwe (startwe),
.atp (dram_addrp[10:3]),
.vintbugfix (vintbugfix),
.turbo (turbo)
.turbo (turbo),
.ntsc (ntsc),
.video_center (video_center)
);
assign vga_hs_n = ~xhs_out;
@@ -1401,6 +1424,7 @@ wire b_ee_cs;
wire b_ee_sk;
wire b_ee_dout;
wire b_ee_din;
wire b_eint;
wire [31:0] cart_qt = b_doe ? b_dout : cart_q;
_butch butch_inst
(
@@ -1409,6 +1433,7 @@ _butch butch_inst
.cart_ce_n (cart_ce_n),
.cd_en (cd_en),
.cd_ex (cd_ex),
.cd_latency_en (cd_latency_en),
.eoe0l (b_eoe0l),
.eoe1l (b_eoe1l),
.ewe0l (b_ewe0l),
@@ -1423,22 +1448,23 @@ _butch butch_inst
.audwaitl (audwaitl),
.aud_cbusy (aud_busy),
.i2srxd (j_xi2srxd),
.eint (j_xeint[0]),
.eint (b_eint),
.sen (b_xsck_oe),
.sck (b_xsck_out),
.ws (b_xws_out),
.override (b_override),
.aud_ce (aud_ce),
.aud_sess (aud_sess),
.force_music_cd (force_music_cd),
.toc_addr (toc_addr),
.toc_data (toc_data),
.toc_wr (toc_wr),
.eeprom_cs (b_ee_cs),
.eeprom_sk (b_ee_sk),
.eeprom_dout (b_ee_din),
.eeprom_din (b_ee_dout),
.maxc (maxc),
.addr_ch3 (addr_ch3[23:0]),
.toc_addr (toc_addr),
.toc_data (toc_data),
.toc_wr (toc_wr),
.dohacks (dohacks),
.hackbus (hackbus),
.hackbus1 (hackbus1),
@@ -1448,6 +1474,23 @@ _butch butch_inst
.errflowo (errflow),
.unhandledo (unhandled),
.cd_valid(cd_valid),
.dbg_cue_tracks(dbg_butch_cue_tracks),
.dbg_aud_tracks(dbg_butch_aud_tracks),
.dbg_dat_track(dbg_butch_dat_track),
.dbg_dsa_sessions(dbg_butch_dsa_sessions),
.dbg_sess1_valid(dbg_butch_sess1_valid),
.dbg_last_ds(dbg_butch_last_ds),
.dbg_last_err(dbg_butch_last_err),
.dbg_track_idx(dbg_butch_track_idx),
.dbg_cues_addr(dbg_butch_cues_addr),
.dbg_cuet_addr(dbg_butch_cuet_addr),
.dbg_resp_54(dbg_butch_resp_54),
.dbg_toc0(dbg_butch_toc0),
.dbg_toc1(dbg_butch_toc1),
.dbg_spin(dbg_butch_spin),
.dbg_ltoc0(dbg_butch_ltoc0),
.dbg_ltoc1(dbg_butch_ltoc1),
.dbg_toc_ready(dbg_butch_toc_ready),
.sys_clk (sys_clk)
);
wire b_xsck_oe;
@@ -1565,7 +1608,7 @@ fx68k fx68k_inst
.IPL0n (fx68k_ipl_n[0]), // input
.IPL1n (fx68k_ipl_n[1]), // input
.IPL2n (fx68k_ipl_n[2]), // input
.iEdb (fx68k_din), // input
.iEdb (m68k_di), // input
.oEdb (fx68k_dout), // output
.eab (fx68k_address) // output
);

2
rtl/Rework/jaguar_Rework.qip
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@@ -1,6 +1,8 @@
set_global_assignment -name VERILOG_FILE [file join $::quartus(qip_path) defs.v ]
set_global_assignment -name VERILOG_FILE [file join $::quartus(qip_path) ../Rework/jaguar.v ]
set_global_assignment -name VERILOG_FILE [file join $::quartus(qip_path) ../gamedrive.v ]
set_global_assignment -name SYSTEMVERILOG_FILE [file join $::quartus(qip_path) ../cd_stream.sv ]
set_global_assignment -name SYSTEMVERILOG_FILE [file join $::quartus(qip_path) ../debug_overlay.sv ]
#set_global_assignment -name VERILOG_FILE [file join $::quartus(qip_path) s2_hq_dac.v ]
#set_global_assignment -name VERILOG_FILE [file join $::quartus(qip_path) tb_old.v ]
set_global_assignment -name VERILOG_FILE [file join $::quartus(qip_path) ../Rework/ab8016a.v ]

5
rtl/Rework/tom.v
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@@ -89,6 +89,8 @@ module _tom
output [10:3] atp,
input turbo,
input vintbugfix,
input ntsc,
input video_center,
output wire hsl,
output wire vsl
);
@@ -850,6 +852,8 @@ _vid vid_inst
.vey /* IN */ (vey),
.vly /* IN */ (vly),
.lock /* IN */ (lock),
.ntsc /* IN */ (ntsc),
.video_center /* IN */ (video_center),
.start /* OUT */ (start),
.dd /* OUT */ (dd),
.lbufa /* OUT */ (lbufa),
@@ -1402,4 +1406,3 @@ assign dr_15_12_oe = dr_gpu_oe | dr_vid_15_12_oe | dr_abus_oe | dr_ob_oe | dr_ob
assign justify_out = (justify_gpu_oe ? justify_gpu_out : 1'b0) | (justify_mem_oe ? justify_mem_out : 1'b0) | (justify_ob_oe ? justify_ob_out : 1'b0);
assign justify_oe = justify_gpu_oe | justify_mem_oe | justify_ob_oe;
endmodule

15
rtl/Rework/vid.v
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@@ -42,6 +42,8 @@ module _vid
input vey,
input vly,
input lock,
input ntsc,
input video_center,
output start,
output dd,
output lbufa,
@@ -628,8 +630,16 @@ begin
end
assign vbbeq = vbb[10:0] == vc[10:0];
assign vbeeq = vbe[10:0] == vc[10:0];
assign vdbeq = vdb[10:0] == vc[10:0];
assign vdeeq = vde[10:0] == vc[10:0];
// Optional vertical centering tweak:
// move active video start earlier so top-only black is reduced and bottom headroom improves.
// keep VDE sentinel (all ones) untouched so "no explicit data end" behavior is preserved.
wire [10:0] vcenter_shift = ntsc ? 11'd16 : 11'd8; // NTSC: 8 lines, PAL: 4 lines (half-line units)
wire [10:0] vdb_shifted = (vdb[10:0] > vcenter_shift) ? (vdb[10:0] - vcenter_shift) : 11'd0;
wire [10:0] vde_shifted = (vde[10:0] > vcenter_shift) ? (vde[10:0] - vcenter_shift) : 11'd0;
wire [10:0] vdb_eff = video_center ? vdb_shifted : vdb[10:0];
wire [10:0] vde_eff = (video_center && (vde[10:0] != 11'h7FF)) ? vde_shifted : vde[10:0];
assign vdbeq = vdb_eff == vc[10:0];
assign vdeeq = vde_eff == vc[10:0];
assign vebeq = veb[10:0] == vc[10:0];
assign veeeq = vee[10:0] == vc[10:0];
assign vseq = vs[10:0] == vc[10:0];
@@ -974,4 +984,3 @@ assign dr_out[11] = (dr_vc_oe & dr_vc_out[11]) | (dr_lph_oe & dr_lph_out[11]) |
assign dr_11_0_oe = dr_15_12_oe | dr_test3r_oe;
endmodule

1081
rtl/cd_stream.sv Normal file
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908
rtl/debug_overlay.sv Normal file
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@@ -0,0 +1,908 @@
module jaguar_debug_overlay
(
input logic clk_sys,
input logic ce_pix,
input logic reset,
input logic enable,
input logic hblank,
input logic vblank,
input logic [7:0] in_r,
input logic [7:0] in_g,
input logic [7:0] in_b,
input logic cd_drive_en,
input logic cd_img_mounted,
input logic cd_inserted,
input logic cd_valid,
input logic [1:0] cd_fmt,
input logic [4:0] cd_state,
input logic [7:0] cd_track,
input logic [7:0] cd_session,
input logic [7:0] cd_desc_index,
input logic [7:0] cd_session_count,
input logic cd_toc_wr,
input logic [9:0] cd_toc_addr,
input logic [15:0] cd_toc_data,
input logic cd_hps_req,
input logic cd_hps_ack,
input logic xwaitl,
input logic cd_stream_boot_pending,
input logic cd_state_idle_dbg,
input logic xresetlp_dbg,
input logic xresetl_dbg,
input logic bootcopy_active,
input logic [31:0] cd_hps_lba,
input logic [31:0] audbus_out_dbg,
input logic butch_aud_sess,
input logic [6:0] butch_cue_tracks,
input logic [6:0] butch_aud_tracks,
input logic [6:0] butch_dat_track,
input logic [7:0] butch_dsa_sessions,
input logic butch_sess1_valid,
input logic [15:0] butch_last_ds,
input logic [7:0] butch_last_err,
input logic [6:0] butch_track_idx,
input logic [6:0] butch_cues_addr,
input logic [6:0] butch_cuet_addr,
input logic [15:0] butch_resp_54,
input logic [39:0] butch_toc0,
input logic [39:0] butch_toc1,
input logic [15:0] butch_spin,
input logic [15:0] butch_ltoc0,
input logic [15:0] butch_ltoc1,
input logic [29:0] first_aud_addr0,
input logic [29:0] first_aud_addr1,
input logic first_grant_seen,
input logic [6:0] first_grant_track,
input logic [6:0] first_grant_cuet,
input logic [29:0] first_grant_addr,
input logic [29:0] first_grant_file_addr,
input logic [63:0] first_grant_word,
input logic [63:0] stream_q_dbg,
output logic [7:0] out_r,
output logic [7:0] out_g,
output logic [7:0] out_b
);
// This is intentionally simple and self-contained:
// - It watches the existing pixel cadence (`ce_pix`) and blanking signals.
// - It reconstructs an active-video X/Y coordinate in the same clock domain.
// - It renders a compact fixed text block using an internal 8x8 bitmap font.
// - It overlays useful CD state so image-format and mount issues can be seen
// immediately on screen without external probes.
//
// The text map is fixed on purpose. Editing the `char_code` case below is the
// low-risk way to swap in different debug fields later.
localparam int BOX_X = 8;
localparam int BOX_Y = 8;
localparam int CHAR_W = 8;
localparam int CHAR_H = 8;
localparam int TEXT_COLS = 32;
localparam int TEXT_ROWS = 15;
localparam int BOX_W = TEXT_COLS * CHAR_W;
localparam int BOX_H = TEXT_ROWS * CHAR_H;
logic [9:0] pix_x;
logic [9:0] pix_y;
logic old_hblank;
logic old_vblank;
logic toc_seen;
logic [9:0] toc_addr_last;
logic [15:0] toc_data_last;
logic [15:0] track2_toc [0:7];
integer track2_i;
wire frame_start = old_vblank && !vblank;
wire line_start = old_hblank && !hblank;
always_ff @(posedge clk_sys) begin
if (reset) begin
pix_x <= 10'd0;
pix_y <= 10'd0;
old_hblank <= 1'b1;
old_vblank <= 1'b1;
toc_seen <= 1'b0;
toc_addr_last <= 10'h000;
toc_data_last <= 16'h0000;
for (track2_i = 0; track2_i < 8; track2_i = track2_i + 1) begin
track2_toc[track2_i] <= 16'h0000;
end
end else begin
if (cd_toc_wr) begin
toc_seen <= 1'b1;
toc_addr_last <= cd_toc_addr;
toc_data_last <= cd_toc_data;
if (cd_toc_addr == 10'h008) begin
for (track2_i = 0; track2_i < 8; track2_i = track2_i + 1) begin
track2_toc[track2_i] <= 16'h0000;
end
end
if (cd_toc_addr[9:3] == 7'h02) begin
track2_toc[cd_toc_addr[2:0]] <= cd_toc_data;
end
end
if (ce_pix) begin
old_hblank <= hblank;
old_vblank <= vblank;
if (frame_start) begin
pix_x <= 10'd0;
pix_y <= 10'd0;
end else if (line_start) begin
pix_x <= 10'd0;
if (!vblank) pix_y <= pix_y + 10'd1;
end else if (!hblank && !vblank) begin
pix_x <= pix_x + 10'd1;
end
end
end
end
function automatic [7:0] bit_char(input logic bit_value);
bit_char = bit_value ? "1" : "0";
endfunction
function automatic [7:0] hex_char(input logic [3:0] nibble);
case (nibble)
4'h0: hex_char = "0";
4'h1: hex_char = "1";
4'h2: hex_char = "2";
4'h3: hex_char = "3";
4'h4: hex_char = "4";
4'h5: hex_char = "5";
4'h6: hex_char = "6";
4'h7: hex_char = "7";
4'h8: hex_char = "8";
4'h9: hex_char = "9";
4'hA: hex_char = "A";
4'hB: hex_char = "B";
4'hC: hex_char = "C";
4'hD: hex_char = "D";
4'hE: hex_char = "E";
default: hex_char = "F";
endcase
endfunction
function automatic [7:0] font_row(input logic [7:0] ch, input logic [2:0] row);
begin
font_row = 8'h00;
case (ch)
" ": font_row = 8'h00;
":": case (row)
3'd1: font_row = 8'h18;
3'd2: font_row = 8'h18;
3'd5: font_row = 8'h18;
3'd6: font_row = 8'h18;
default: font_row = 8'h00;
endcase
"0": case (row)
3'd0: font_row = 8'h3C;
3'd1: font_row = 8'h66;
3'd2: font_row = 8'h6E;
3'd3: font_row = 8'h76;
3'd4: font_row = 8'h66;
3'd5: font_row = 8'h66;
3'd6: font_row = 8'h3C;
default: font_row = 8'h00;
endcase
"1": case (row)
3'd0: font_row = 8'h18;
3'd1: font_row = 8'h38;
3'd2: font_row = 8'h18;
3'd3: font_row = 8'h18;
3'd4: font_row = 8'h18;
3'd5: font_row = 8'h18;
3'd6: font_row = 8'h3C;
default: font_row = 8'h00;
endcase
"2": case (row)
3'd0: font_row = 8'h3C;
3'd1: font_row = 8'h66;
3'd2: font_row = 8'h06;
3'd3: font_row = 8'h0C;
3'd4: font_row = 8'h18;
3'd5: font_row = 8'h30;
3'd6: font_row = 8'h7E;
default: font_row = 8'h00;
endcase
"3": case (row)
3'd0: font_row = 8'h3C;
3'd1: font_row = 8'h66;
3'd2: font_row = 8'h06;
3'd3: font_row = 8'h1C;
3'd4: font_row = 8'h06;
3'd5: font_row = 8'h66;
3'd6: font_row = 8'h3C;
default: font_row = 8'h00;
endcase
"4": case (row)
3'd0: font_row = 8'h0C;
3'd1: font_row = 8'h1C;
3'd2: font_row = 8'h3C;
3'd3: font_row = 8'h6C;
3'd4: font_row = 8'h7E;
3'd5: font_row = 8'h0C;
3'd6: font_row = 8'h0C;
default: font_row = 8'h00;
endcase
"5": case (row)
3'd0: font_row = 8'h7E;
3'd1: font_row = 8'h60;
3'd2: font_row = 8'h7C;
3'd3: font_row = 8'h06;
3'd4: font_row = 8'h06;
3'd5: font_row = 8'h66;
3'd6: font_row = 8'h3C;
default: font_row = 8'h00;
endcase
"6": case (row)
3'd0: font_row = 8'h1C;
3'd1: font_row = 8'h30;
3'd2: font_row = 8'h60;
3'd3: font_row = 8'h7C;
3'd4: font_row = 8'h66;
3'd5: font_row = 8'h66;
3'd6: font_row = 8'h3C;
default: font_row = 8'h00;
endcase
"7": case (row)
3'd0: font_row = 8'h7E;
3'd1: font_row = 8'h66;
3'd2: font_row = 8'h06;
3'd3: font_row = 8'h0C;
3'd4: font_row = 8'h18;
3'd5: font_row = 8'h18;
3'd6: font_row = 8'h18;
default: font_row = 8'h00;
endcase
"8": case (row)
3'd0: font_row = 8'h3C;
3'd1: font_row = 8'h66;
3'd2: font_row = 8'h66;
3'd3: font_row = 8'h3C;
3'd4: font_row = 8'h66;
3'd5: font_row = 8'h66;
3'd6: font_row = 8'h3C;
default: font_row = 8'h00;
endcase
"9": case (row)
3'd0: font_row = 8'h3C;
3'd1: font_row = 8'h66;
3'd2: font_row = 8'h66;
3'd3: font_row = 8'h3E;
3'd4: font_row = 8'h06;
3'd5: font_row = 8'h0C;
3'd6: font_row = 8'h38;
default: font_row = 8'h00;
endcase
"A": case (row)
3'd0: font_row = 8'h18;
3'd1: font_row = 8'h3C;
3'd2: font_row = 8'h66;
3'd3: font_row = 8'h66;
3'd4: font_row = 8'h7E;
3'd5: font_row = 8'h66;
3'd6: font_row = 8'h66;
default: font_row = 8'h00;
endcase
"B": case (row)
3'd0: font_row = 8'h7C;
3'd1: font_row = 8'h66;
3'd2: font_row = 8'h66;
3'd3: font_row = 8'h7C;
3'd4: font_row = 8'h66;
3'd5: font_row = 8'h66;
3'd6: font_row = 8'h7C;
default: font_row = 8'h00;
endcase
"C": case (row)
3'd0: font_row = 8'h3C;
3'd1: font_row = 8'h66;
3'd2: font_row = 8'h60;
3'd3: font_row = 8'h60;
3'd4: font_row = 8'h60;
3'd5: font_row = 8'h66;
3'd6: font_row = 8'h3C;
default: font_row = 8'h00;
endcase
"D": case (row)
3'd0: font_row = 8'h78;
3'd1: font_row = 8'h6C;
3'd2: font_row = 8'h66;
3'd3: font_row = 8'h66;
3'd4: font_row = 8'h66;
3'd5: font_row = 8'h6C;
3'd6: font_row = 8'h78;
default: font_row = 8'h00;
endcase
"E": case (row)
3'd0: font_row = 8'h7E;
3'd1: font_row = 8'h60;
3'd2: font_row = 8'h60;
3'd3: font_row = 8'h7C;
3'd4: font_row = 8'h60;
3'd5: font_row = 8'h60;
3'd6: font_row = 8'h7E;
default: font_row = 8'h00;
endcase
"F": case (row)
3'd0: font_row = 8'h7E;
3'd1: font_row = 8'h60;
3'd2: font_row = 8'h60;
3'd3: font_row = 8'h7C;
3'd4: font_row = 8'h60;
3'd5: font_row = 8'h60;
3'd6: font_row = 8'h60;
default: font_row = 8'h00;
endcase
"I": case (row)
3'd0: font_row = 8'h3C;
3'd1: font_row = 8'h18;
3'd2: font_row = 8'h18;
3'd3: font_row = 8'h18;
3'd4: font_row = 8'h18;
3'd5: font_row = 8'h18;
3'd6: font_row = 8'h3C;
default: font_row = 8'h00;
endcase
"L": case (row)
3'd0: font_row = 8'h60;
3'd1: font_row = 8'h60;
3'd2: font_row = 8'h60;
3'd3: font_row = 8'h60;
3'd4: font_row = 8'h60;
3'd5: font_row = 8'h60;
3'd6: font_row = 8'h7E;
default: font_row = 8'h00;
endcase
"M": case (row)
3'd0: font_row = 8'h63;
3'd1: font_row = 8'h77;
3'd2: font_row = 8'h7F;
3'd3: font_row = 8'h6B;
3'd4: font_row = 8'h63;
3'd5: font_row = 8'h63;
3'd6: font_row = 8'h63;
default: font_row = 8'h00;
endcase
"P": case (row)
3'd0: font_row = 8'h7C;
3'd1: font_row = 8'h66;
3'd2: font_row = 8'h66;
3'd3: font_row = 8'h7C;
3'd4: font_row = 8'h60;
3'd5: font_row = 8'h60;
3'd6: font_row = 8'h60;
default: font_row = 8'h00;
endcase
"Q": case (row)
3'd0: font_row = 8'h3C;
3'd1: font_row = 8'h66;
3'd2: font_row = 8'h66;
3'd3: font_row = 8'h66;
3'd4: font_row = 8'h6E;
3'd5: font_row = 8'h3C;
3'd6: font_row = 8'h0E;
default: font_row = 8'h00;
endcase
"R": case (row)
3'd0: font_row = 8'h7C;
3'd1: font_row = 8'h66;
3'd2: font_row = 8'h66;
3'd3: font_row = 8'h7C;
3'd4: font_row = 8'h6C;
3'd5: font_row = 8'h66;
3'd6: font_row = 8'h66;
default: font_row = 8'h00;
endcase
"S": case (row)
3'd0: font_row = 8'h3E;
3'd1: font_row = 8'h60;
3'd2: font_row = 8'h60;
3'd3: font_row = 8'h3C;
3'd4: font_row = 8'h06;
3'd5: font_row = 8'h06;
3'd6: font_row = 8'h7C;
default: font_row = 8'h00;
endcase
"T": case (row)
3'd0: font_row = 8'h7E;
3'd1: font_row = 8'h18;
3'd2: font_row = 8'h18;
3'd3: font_row = 8'h18;
3'd4: font_row = 8'h18;
3'd5: font_row = 8'h18;
3'd6: font_row = 8'h18;
default: font_row = 8'h00;
endcase
"U": case (row)
3'd0: font_row = 8'h66;
3'd1: font_row = 8'h66;
3'd2: font_row = 8'h66;
3'd3: font_row = 8'h66;
3'd4: font_row = 8'h66;
3'd5: font_row = 8'h66;
3'd6: font_row = 8'h3C;
default: font_row = 8'h00;
endcase
"V": case (row)
3'd0: font_row = 8'h66;
3'd1: font_row = 8'h66;
3'd2: font_row = 8'h66;
3'd3: font_row = 8'h66;
3'd4: font_row = 8'h66;
3'd5: font_row = 8'h3C;
3'd6: font_row = 8'h18;
default: font_row = 8'h00;
endcase
"W": case (row)
3'd0: font_row = 8'h63;
3'd1: font_row = 8'h63;
3'd2: font_row = 8'h63;
3'd3: font_row = 8'h6B;
3'd4: font_row = 8'h7F;
3'd5: font_row = 8'h77;
3'd6: font_row = 8'h63;
default: font_row = 8'h00;
endcase
"X": case (row)
3'd0: font_row = 8'h66;
3'd1: font_row = 8'h66;
3'd2: font_row = 8'h3C;
3'd3: font_row = 8'h18;
3'd4: font_row = 8'h3C;
3'd5: font_row = 8'h66;
3'd6: font_row = 8'h66;
default: font_row = 8'h00;
endcase
default: font_row = 8'h00;
endcase
end
endfunction
logic in_box;
logic [5:0] text_col;
logic [3:0] text_row;
logic [2:0] glyph_x;
logic [2:0] glyph_y;
logic [7:0] char_code;
logic [7:0] glyph_bits;
logic text_pixel;
always @* begin
in_box = enable &&
!hblank &&
!vblank &&
(pix_x >= BOX_X) &&
(pix_x < (BOX_X + BOX_W)) &&
(pix_y >= BOX_Y) &&
(pix_y < (BOX_Y + BOX_H));
text_col = 6'd0;
text_row = 4'd0;
glyph_x = 3'd0;
glyph_y = 3'd0;
char_code = " ";
glyph_bits = 8'h00;
text_pixel = 1'b0;
if (in_box) begin
text_col = (pix_x - BOX_X) >> 3;
text_row = (pix_y - BOX_Y) >> 3;
glyph_x = (pix_x - BOX_X) & 10'd7;
glyph_y = (pix_y - BOX_Y) & 10'd7;
case (text_row)
4'd0: begin
case (text_col)
6'd0: char_code = "C";
6'd1: char_code = "D";
6'd2: char_code = " ";
6'd3: char_code = "D";
6'd4: char_code = ":";
6'd5: char_code = bit_char(cd_drive_en);
6'd6: char_code = " ";
6'd7: char_code = "M";
6'd8: char_code = ":";
6'd9: char_code = bit_char(cd_img_mounted);
6'd10: char_code = " ";
6'd11: char_code = "I";
6'd12: char_code = ":";
6'd13: char_code = bit_char(cd_inserted);
6'd14: char_code = " ";
6'd15: char_code = "V";
6'd16: char_code = ":";
6'd17: char_code = bit_char(cd_valid);
6'd18: char_code = " ";
6'd19: char_code = "F";
6'd20: char_code = ":";
6'd21: char_code = hex_char({2'b00, cd_fmt});
6'd22: char_code = " ";
6'd23: char_code = "T";
6'd24: char_code = ":";
6'd25: char_code = hex_char({3'b000, cd_state[4]});
6'd26: char_code = hex_char(cd_state[3:0]);
default: char_code = " ";
endcase
end
4'd1: begin
case (text_col)
6'd0: char_code = "S";
6'd1: char_code = ":";
6'd2: char_code = hex_char(cd_session_count[7:4]);
6'd3: char_code = hex_char(cd_session_count[3:0]);
6'd4: char_code = " ";
6'd5: char_code = "Q";
6'd6: char_code = ":";
6'd7: char_code = bit_char(cd_hps_req);
6'd8: char_code = " ";
6'd9: char_code = "A";
6'd10: char_code = ":";
6'd11: char_code = bit_char(cd_hps_ack);
6'd12: char_code = " ";
6'd13: char_code = "X";
6'd14: char_code = ":";
6'd15: char_code = bit_char(xwaitl);
6'd16: char_code = " ";
6'd17: char_code = "P";
6'd18: char_code = ":";
6'd19: char_code = bit_char(cd_stream_boot_pending);
default: char_code = " ";
endcase
end
4'd2: begin
case (text_col)
6'd0: char_code = "T";
6'd1: char_code = "R";
6'd2: char_code = ":";
6'd3: char_code = hex_char(cd_track[7:4]);
6'd4: char_code = hex_char(cd_track[3:0]);
6'd5: char_code = " ";
6'd6: char_code = "S";
6'd7: char_code = "S";
6'd8: char_code = ":";
6'd9: char_code = hex_char(cd_session[7:4]);
6'd10: char_code = hex_char(cd_session[3:0]);
6'd11: char_code = " ";
6'd12: char_code = "D";
6'd13: char_code = "I";
6'd14: char_code = ":";
6'd15: char_code = hex_char(cd_desc_index[7:4]);
6'd16: char_code = hex_char(cd_desc_index[3:0]);
default: char_code = " ";
endcase
end
4'd3: begin
case (text_col)
6'd0: char_code = "T";
6'd1: char_code = "W";
6'd2: char_code = ":";
6'd3: char_code = bit_char(toc_seen);
6'd4: char_code = " ";
6'd5: char_code = "A";
6'd6: char_code = ":";
6'd7: char_code = hex_char({2'b00, toc_addr_last[9:8]});
6'd8: char_code = hex_char(toc_addr_last[7:4]);
6'd9: char_code = hex_char(toc_addr_last[3:0]);
6'd10: char_code = " ";
6'd11: char_code = "D";
6'd12: char_code = ":";
6'd13: char_code = hex_char(toc_data_last[15:12]);
6'd14: char_code = hex_char(toc_data_last[11:8]);
6'd15: char_code = hex_char(toc_data_last[7:4]);
6'd16: char_code = hex_char(toc_data_last[3:0]);
default: char_code = " ";
endcase
end
4'd4: begin
case (text_col)
6'd0: char_code = "C";
6'd1: char_code = "Q";
6'd2: char_code = ":";
6'd3: char_code = hex_char({1'b0, butch_cue_tracks[6:4]});
6'd4: char_code = hex_char(butch_cue_tracks[3:0]);
6'd5: char_code = " ";
6'd6: char_code = "A";
6'd7: char_code = "Q";
6'd8: char_code = ":";
6'd9: char_code = hex_char({1'b0, butch_aud_tracks[6:4]});
6'd10: char_code = hex_char(butch_aud_tracks[3:0]);
6'd11: char_code = " ";
6'd12: char_code = "D";
6'd13: char_code = "T";
6'd14: char_code = ":";
6'd15: char_code = hex_char({1'b0, butch_dat_track[6:4]});
6'd16: char_code = hex_char(butch_dat_track[3:0]);
6'd17: char_code = " ";
6'd18: char_code = "S";
6'd19: char_code = "1";
6'd20: char_code = ":";
6'd21: char_code = bit_char(butch_sess1_valid);
6'd22: char_code = " ";
6'd23: char_code = "S";
6'd24: char_code = "C";
6'd25: char_code = ":";
6'd26: char_code = hex_char(butch_dsa_sessions[7:4]);
6'd27: char_code = hex_char(butch_dsa_sessions[3:0]);
default: char_code = " ";
endcase
end
4'd5: begin
case (text_col)
6'd0: char_code = "T";
6'd1: char_code = "I";
6'd2: char_code = ":";
6'd3: char_code = hex_char({1'b0, butch_track_idx[6:4]});
6'd4: char_code = hex_char(butch_track_idx[3:0]);
6'd5: char_code = " ";
6'd6: char_code = "C";
6'd7: char_code = "S";
6'd8: char_code = ":";
6'd9: char_code = hex_char({1'b0, butch_cues_addr[6:4]});
6'd10: char_code = hex_char(butch_cues_addr[3:0]);
6'd11: char_code = " ";
6'd12: char_code = "C";
6'd13: char_code = "T";
6'd14: char_code = ":";
6'd15: char_code = hex_char({1'b0, butch_cuet_addr[6:4]});
6'd16: char_code = hex_char(butch_cuet_addr[3:0]);
default: char_code = " ";
endcase
end
4'd6: begin
case (text_col)
6'd0: char_code = "F";
6'd1: char_code = "T";
6'd2: char_code = ":";
6'd3: char_code = hex_char({1'b0, first_grant_track[6:4]});
6'd4: char_code = hex_char(first_grant_track[3:0]);
6'd5: char_code = " ";
6'd6: char_code = "F";
6'd7: char_code = "C";
6'd8: char_code = ":";
6'd9: char_code = hex_char({1'b0, first_grant_cuet[6:4]});
6'd10: char_code = hex_char(first_grant_cuet[3:0]);
6'd11: char_code = " ";
6'd12: char_code = "G";
6'd13: char_code = "S";
6'd14: char_code = ":";
6'd15: char_code = bit_char(first_grant_seen);
default: char_code = " ";
endcase
end
4'd7: begin
case (text_col)
6'd0: char_code = "2";
6'd1: char_code = "0";
6'd2: char_code = ":";
6'd3: char_code = hex_char(track2_toc[0][15:12]);
6'd4: char_code = hex_char(track2_toc[0][11:8]);
6'd5: char_code = hex_char(track2_toc[0][7:4]);
6'd6: char_code = hex_char(track2_toc[0][3:0]);
6'd7: char_code = " ";
6'd8: char_code = "2";
6'd9: char_code = "1";
6'd10: char_code = ":";
6'd11: char_code = hex_char(track2_toc[1][15:12]);
6'd12: char_code = hex_char(track2_toc[1][11:8]);
6'd13: char_code = hex_char(track2_toc[1][7:4]);
6'd14: char_code = hex_char(track2_toc[1][3:0]);
6'd15: char_code = " ";
6'd16: char_code = "2";
6'd17: char_code = "2";
6'd18: char_code = ":";
6'd19: char_code = hex_char(track2_toc[2][15:12]);
6'd20: char_code = hex_char(track2_toc[2][11:8]);
6'd21: char_code = hex_char(track2_toc[2][7:4]);
6'd22: char_code = hex_char(track2_toc[2][3:0]);
default: char_code = " ";
endcase
end
4'd8: begin
case (text_col)
6'd0: char_code = "2";
6'd1: char_code = "3";
6'd2: char_code = ":";
6'd3: char_code = hex_char(track2_toc[3][15:12]);
6'd4: char_code = hex_char(track2_toc[3][11:8]);
6'd5: char_code = hex_char(track2_toc[3][7:4]);
6'd6: char_code = hex_char(track2_toc[3][3:0]);
6'd7: char_code = " ";
6'd8: char_code = "2";
6'd9: char_code = "4";
6'd10: char_code = ":";
6'd11: char_code = hex_char(track2_toc[4][15:12]);
6'd12: char_code = hex_char(track2_toc[4][11:8]);
6'd13: char_code = hex_char(track2_toc[4][7:4]);
6'd14: char_code = hex_char(track2_toc[4][3:0]);
6'd15: char_code = " ";
6'd16: char_code = "2";
6'd17: char_code = "5";
6'd18: char_code = ":";
6'd19: char_code = hex_char(track2_toc[5][15:12]);
6'd20: char_code = hex_char(track2_toc[5][11:8]);
6'd21: char_code = hex_char(track2_toc[5][7:4]);
6'd22: char_code = hex_char(track2_toc[5][3:0]);
default: char_code = " ";
endcase
end
4'd9: begin
case (text_col)
6'd0: char_code = "2";
6'd1: char_code = "6";
6'd2: char_code = ":";
6'd3: char_code = hex_char(track2_toc[6][15:12]);
6'd4: char_code = hex_char(track2_toc[6][11:8]);
6'd5: char_code = hex_char(track2_toc[6][7:4]);
6'd6: char_code = hex_char(track2_toc[6][3:0]);
6'd7: char_code = " ";
6'd8: char_code = "2";
6'd9: char_code = "7";
6'd10: char_code = ":";
6'd11: char_code = hex_char(track2_toc[7][15:12]);
6'd12: char_code = hex_char(track2_toc[7][11:8]);
6'd13: char_code = hex_char(track2_toc[7][7:4]);
6'd14: char_code = hex_char(track2_toc[7][3:0]);
default: char_code = " ";
endcase
end
4'd10: begin
case (text_col)
6'd0: char_code = "R";
6'd1: char_code = ":";
6'd2: char_code = bit_char(reset);
6'd3: char_code = " ";
6'd4: char_code = "C";
6'd5: char_code = ":";
6'd6: char_code = bit_char(cd_state_idle_dbg);
6'd7: char_code = " ";
6'd8: char_code = "P";
6'd9: char_code = ":";
6'd10: char_code = bit_char(xresetlp_dbg);
6'd11: char_code = " ";
6'd12: char_code = "X";
6'd13: char_code = ":";
6'd14: char_code = bit_char(xresetl_dbg);
6'd15: char_code = " ";
6'd16: char_code = "B";
6'd17: char_code = ":";
6'd18: char_code = bit_char(bootcopy_active);
6'd19: char_code = " ";
6'd20: char_code = "L";
6'd21: char_code = ":";
6'd22: char_code = hex_char(butch_last_ds[15:12]);
6'd23: char_code = hex_char(butch_last_ds[11:8]);
6'd24: char_code = hex_char(butch_last_ds[7:4]);
6'd25: char_code = hex_char(butch_last_ds[3:0]);
6'd26: char_code = " ";
6'd27: char_code = "E";
6'd28: char_code = ":";
6'd29: char_code = hex_char(butch_last_err[7:4]);
6'd30: char_code = hex_char(butch_last_err[3:0]);
default: char_code = " ";
endcase
end
4'd11: begin
case (text_col)
6'd0: char_code = "3";
6'd1: char_code = "0";
6'd2: char_code = ":";
6'd3: char_code = hex_char(butch_toc0[39:36]);
6'd4: char_code = hex_char(butch_toc0[35:32]);
6'd5: char_code = " ";
6'd6: char_code = hex_char(butch_toc0[31:28]);
6'd7: char_code = hex_char(butch_toc0[27:24]);
6'd8: char_code = " ";
6'd9: char_code = hex_char(butch_toc0[23:20]);
6'd10: char_code = hex_char(butch_toc0[19:16]);
6'd11: char_code = hex_char(butch_toc0[15:12]);
6'd12: char_code = hex_char(butch_toc0[11:8]);
6'd13: char_code = hex_char(butch_toc0[7:4]);
6'd14: char_code = hex_char(butch_toc0[3:0]);
default: char_code = " ";
endcase
end
4'd12: begin
case (text_col)
6'd0: char_code = "3";
6'd1: char_code = "1";
6'd2: char_code = ":";
6'd3: char_code = hex_char(butch_toc1[39:36]);
6'd4: char_code = hex_char(butch_toc1[35:32]);
6'd5: char_code = " ";
6'd6: char_code = hex_char(butch_toc1[31:28]);
6'd7: char_code = hex_char(butch_toc1[27:24]);
6'd8: char_code = " ";
6'd9: char_code = hex_char(butch_toc1[23:20]);
6'd10: char_code = hex_char(butch_toc1[19:16]);
6'd11: char_code = hex_char(butch_toc1[15:12]);
6'd12: char_code = hex_char(butch_toc1[11:8]);
6'd13: char_code = hex_char(butch_toc1[7:4]);
6'd14: char_code = hex_char(butch_toc1[3:0]);
default: char_code = " ";
endcase
end
4'd13: begin
case (text_col)
6'd0: char_code = "L";
6'd1: char_code = "0";
6'd2: char_code = ":";
6'd3: char_code = bit_char(butch_ltoc0[15]);
6'd4: char_code = " ";
6'd5: char_code = hex_char({1'b0, butch_ltoc0[14:12]});
6'd6: char_code = hex_char(butch_ltoc0[11:8]);
6'd7: char_code = " ";
6'd8: char_code = hex_char(butch_ltoc0[7:4]);
6'd9: char_code = hex_char(butch_ltoc0[3:0]);
6'd10: char_code = " ";
6'd11: char_code = "L";
6'd12: char_code = "1";
6'd13: char_code = ":";
6'd14: char_code = bit_char(butch_ltoc1[15]);
6'd15: char_code = " ";
6'd16: char_code = hex_char({1'b0, butch_ltoc1[14:12]});
6'd17: char_code = hex_char(butch_ltoc1[11:8]);
6'd18: char_code = " ";
6'd19: char_code = hex_char(butch_ltoc1[7:4]);
6'd20: char_code = hex_char(butch_ltoc1[3:0]);
default: char_code = " ";
endcase
end
4'd14: begin
case (text_col)
6'd0: char_code = "F";
6'd1: char_code = "0";
6'd2: char_code = ":";
6'd3: char_code = hex_char(first_aud_addr0[29:28]);
6'd4: char_code = hex_char(first_aud_addr0[27:24]);
6'd5: char_code = hex_char(first_aud_addr0[23:20]);
6'd6: char_code = hex_char(first_aud_addr0[19:16]);
6'd7: char_code = hex_char(first_aud_addr0[15:12]);
6'd8: char_code = hex_char(first_aud_addr0[11:8]);
6'd9: char_code = hex_char(first_aud_addr0[7:4]);
6'd10: char_code = hex_char(first_aud_addr0[3:0]);
6'd11: char_code = " ";
6'd12: char_code = "F";
6'd13: char_code = "1";
6'd14: char_code = ":";
6'd15: char_code = hex_char(first_aud_addr1[29:28]);
6'd16: char_code = hex_char(first_aud_addr1[27:24]);
6'd17: char_code = hex_char(first_aud_addr1[23:20]);
6'd18: char_code = hex_char(first_aud_addr1[19:16]);
6'd19: char_code = hex_char(first_aud_addr1[15:12]);
6'd20: char_code = hex_char(first_aud_addr1[11:8]);
6'd21: char_code = hex_char(first_aud_addr1[7:4]);
6'd22: char_code = hex_char(first_aud_addr1[3:0]);
default: char_code = " ";
endcase
end
default: char_code = " ";
endcase
glyph_bits = font_row(char_code, glyph_y);
text_pixel = glyph_bits[7 - glyph_x];
end
end
always @* begin
out_r = in_r;
out_g = in_g;
out_b = in_b;
if (in_box) begin
// Darkened backdrop makes the text readable on bright scenes while
// still letting the underlying image show through.
out_r = {2'b00, in_r[7:2]};
out_g = {2'b00, in_g[7:2]};
out_b = {1'b0, in_b[7:1]};
if (text_pixel) begin
out_r = 8'hFF;
out_g = 8'hF0;
out_b = 8'h80;
end
end
end
endmodule