-
Notifications
You must be signed in to change notification settings - Fork 4
/
Copy pathBubSysROM.sv
451 lines (374 loc) · 14.7 KB
/
BubSysROM.sv
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
//============================================================================
//
// This program is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 of the License, or (at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
// more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
//============================================================================
module emu
(
//Master input clock
input CLK_50M,
//Async reset from top-level module.
//Can be used as initial reset.
input RESET,
//Must be passed to hps_io module
inout [48:0] HPS_BUS,
//Base video clock. Usually equals to CLK_SYS.
output CLK_VIDEO,
//Multiple resolutions are supported using different CE_PIXEL rates.
//Must be based on CLK_VIDEO
output CE_PIXEL,
//Video aspect ratio for HDMI. Most retro systems have ratio 4:3.
//if VIDEO_ARX[12] or VIDEO_ARY[12] is set then [11:0] contains scaled size instead of aspect ratio.
output [12:0] VIDEO_ARX,
output [12:0] VIDEO_ARY,
output [7:0] VGA_R,
output [7:0] VGA_G,
output [7:0] VGA_B,
output VGA_HS,
output VGA_VS,
output VGA_DE, // = ~(VBlank | HBlank)
output VGA_F1,
output [1:0] VGA_SL,
output VGA_SCALER, // Force VGA scaler
output VGA_DISABLE, // analog out is off
input [11:0] HDMI_WIDTH,
input [11:0] HDMI_HEIGHT,
output HDMI_FREEZE,
output HDMI_BLACKOUT,
`ifdef MISTER_FB
// Use framebuffer in DDRAM
// FB_FORMAT:
// [2:0] : 011=8bpp(palette) 100=16bpp 101=24bpp 110=32bpp
// [3] : 0=16bits 565 1=16bits 1555
// [4] : 0=RGB 1=BGR (for 16/24/32 modes)
//
// FB_STRIDE either 0 (rounded to 256 bytes) or multiple of pixel size (in bytes)
output FB_EN,
output [4:0] FB_FORMAT,
output [11:0] FB_WIDTH,
output [11:0] FB_HEIGHT,
output [31:0] FB_BASE,
output [13:0] FB_STRIDE,
input FB_VBL,
input FB_LL,
output FB_FORCE_BLANK,
`ifdef MISTER_FB_PALETTE
// Palette control for 8bit modes.
// Ignored for other video modes.
output FB_PAL_CLK,
output [7:0] FB_PAL_ADDR,
output [23:0] FB_PAL_DOUT,
input [23:0] FB_PAL_DIN,
output FB_PAL_WR,
`endif
`endif
output LED_USER, // 1 - ON, 0 - OFF.
// b[1]: 0 - LED status is system status OR'd with b[0]
// 1 - LED status is controled solely by b[0]
// hint: supply 2'b00 to let the system control the LED.
output [1:0] LED_POWER,
output [1:0] LED_DISK,
// I/O board button press simulation (active high)
// b[1]: user button
// b[0]: osd button
output [1:0] BUTTONS,
input CLK_AUDIO, // 24.576 MHz
output [15:0] AUDIO_L,
output [15:0] AUDIO_R,
output AUDIO_S, // 1 - signed audio samples, 0 - unsigned
output [1:0] AUDIO_MIX, // 0 - no mix, 1 - 25%, 2 - 50%, 3 - 100% (mono)
//ADC
inout [3:0] ADC_BUS,
//SD-SPI
output SD_SCK,
output SD_MOSI,
input SD_MISO,
output SD_CS,
input SD_CD,
//High latency DDR3 RAM interface
//Use for non-critical time purposes
output DDRAM_CLK,
input DDRAM_BUSY,
output [7:0] DDRAM_BURSTCNT,
output [28:0] DDRAM_ADDR,
input [63:0] DDRAM_DOUT,
input DDRAM_DOUT_READY,
output DDRAM_RD,
output [63:0] DDRAM_DIN,
output [7:0] DDRAM_BE,
output DDRAM_WE,
//SDRAM interface with lower latency
output SDRAM_CLK,
output SDRAM_CKE,
output [12:0] SDRAM_A,
output [1:0] SDRAM_BA,
inout [15:0] SDRAM_DQ,
output SDRAM_DQML,
output SDRAM_DQMH,
output SDRAM_nCS,
output SDRAM_nCAS,
output SDRAM_nRAS,
output SDRAM_nWE,
`ifdef MISTER_DUAL_SDRAM
//Secondary SDRAM
//Set all output SDRAM_* signals to Z ASAP if SDRAM2_EN is 0
input SDRAM2_EN,
output SDRAM2_CLK,
output [12:0] SDRAM2_A,
output [1:0] SDRAM2_BA,
inout [15:0] SDRAM2_DQ,
output SDRAM2_nCS,
output SDRAM2_nCAS,
output SDRAM2_nRAS,
output SDRAM2_nWE,
`endif
input UART_CTS,
output UART_RTS,
input UART_RXD,
output UART_TXD,
output UART_DTR,
input UART_DSR,
// Open-drain User port.
// 0 - D+/RX
// 1 - D-/TX
// 2..6 - USR2..USR6
// Set USER_OUT to 1 to read from USER_IN.
input [6:0] USER_IN,
output [6:0] USER_OUT,
input OSD_STATUS
);
///////// Default values for ports not used in this core /////////
assign ADC_BUS = 'Z;
assign USER_OUT = '1;
assign {UART_RTS, UART_TXD, UART_DTR} = 0;
assign {SD_SCK, SD_MOSI, SD_CS} = 'Z;
assign {SDRAM_DQ, SDRAM_A, SDRAM_BA, SDRAM_CLK, SDRAM_CKE, SDRAM_DQML, SDRAM_DQMH, SDRAM_nWE, SDRAM_nCAS, SDRAM_nRAS, SDRAM_nCS} = 'Z;
assign LED_DISK = 0;
assign LED_POWER = 0;
assign BUTTONS = 0;
///////////////////////////////////////////////////////////
////// PLL
////
wire CLK72M, CLK57M;
wire pll_locked;
pll pll(
.refclk (CLK_50M ),
.rst (RESET ),
.outclk_0 (CLK72M ),
.outclk_1 (SDRAM_CLK ),
.outclk_2 (CLK57M ),
.locked (pll_locked )
);
///////////////////////////////////////////////////////////
////// HPS_IO
////
// Status Bit Map:
// Upper Lower
// 0 1 2 3 4 5 6
// 01234567890123456789012345678901 23456789012345678901234567890123
// 0123456789ABCDEFGHIJKLMNOPQRSTUV 0123456789ABCDEFGHIJKLMNOPQRSTUV
// X XXXXXXX X XXXXXXXXXXXXXXXX
wire [127:0] status; //status bits
`include "build_id.v"
localparam CONF_STR = {
"BubSysROM;",
"-;",
"P1,Scaler Settings;",
"P1-;",
"P1O23,Aspect ratio,Original,Full Screen,[ARC1],[ARC2];",
"h0P1O4,Orientation,Horizontal,Vertical;",
"P1O5,VGA Scaler,off,on;",
"P1O68,Scandoubler Fx,None,HQ2x,CRT 25%,CRT 50%,CRT 75%;",
"-;",
"P2,Game Settings;",
"P2-;",
"P2OA,Gamma,original,user;",
"P2OCF,K5289 volume,0,+1,+2,+3,+4,+5,+6,+7,-8,-7,-6,-5,-4,-3,-2,-1;",
"P2OGJ,VLM volume,0,+1,+2,+3,+4,+5,+6,+7,-8,-7,-6,-5,-4,-3,-2,-1;",
"P2OKN,PSG1 volume,0,+1,+2,+3,+4,+5,+6,+7,-8,-7,-6,-5,-4,-3,-2,-1;",
"P2OOR,PSG2 volume,0,+1,+2,+3,+4,+5,+6,+7,-8,-7,-6,-5,-4,-3,-2,-1;",
"-;",
"DIP;",
"-;",
"R0,Reset and close OSD;",
"J1,Button 1,Button 2,Button 3,Coin,Start,Service;",
"jn,A,B,X,R,Start,Select;",
"V,v",`BUILD_DATE
};
//ioctl
wire [15:0] ioctl_index;
wire ioctl_download;
wire [26:0] ioctl_addr;
wire [7:0] ioctl_data;
wire ioctl_wr;
wire ioctl_wait;
wire [1:0] buttons; //hardware button
wire [15:0] joystick_0;
wire [15:0] joystick_1;
wire forced_scandoubler; //?
wire [21:0] gamma_bus;
wire direct_video;
wire video_rotation; //output from the core
hps_io #(.CONF_STR(CONF_STR)) hps_io
(
.clk_sys (CLK72M ),
.HPS_BUS (HPS_BUS ),
.EXT_BUS ( ),
.buttons (buttons ),
.status (status ),
.status_in (128'h0 ),
.status_menumask ({15'd0, video_rotation} ),
.direct_video (direct_video ),
.new_vmode (1'b0 ),
.forced_scandoubler (forced_scandoubler ),
.gamma_bus (gamma_bus ),
.ioctl_download (ioctl_download ),
.ioctl_upload ( ),
.ioctl_upload_req (1'b0 ),
.ioctl_wr (ioctl_wr ),
.ioctl_addr (ioctl_addr ),
.ioctl_dout (ioctl_data ),
.ioctl_din ( ),
.ioctl_index (ioctl_index ),
.ioctl_wait (ioctl_wait ),
.joystick_0 (joystick_0 ),
.joystick_1 (joystick_1 )
);
///////////////////////////////////////////////////////////
////// CORE
////
wire hsync, vsync;
wire hblank, vblank;
wire [4:0] video_r_5bpp, video_g_5bpp, video_b_5bpp; //need to use color conversion LUT
wire vcen;
wire master_reset = RESET | status[0] | buttons[1];
assign AUDIO_S = 1'b1;
assign AUDIO_MIX = 2'd0;
BubSysROM_emu gameboard_top (
.i_EMU_MCLK (CLK72M ),
.i_EMU_SCLK (CLK57M ),
.i_EMU_INITRST (RESET ),
.i_EMU_SOFTRST (master_reset ),
.o_HBLANK (hblank ),
.o_VBLANK (vblank ),
.o_HSYNC (hsync ),
.o_VSYNC (vsync ),
.o_VIDEO_CEN (vcen ),
.o_VIDEO_DEN ( ),
.o_VIDEO_ROT (video_rotation ),
.o_VIDEO_R (video_r_5bpp ),
.o_VIDEO_G (video_g_5bpp ),
.o_VIDEO_B (video_b_5bpp ),
.i_VOL (status[27:12] ),
.o_SND_L (AUDIO_L ),
.o_SND_R (AUDIO_R ),
.i_JOYSTICK0 (joystick_0 ),
.i_JOYSTICK1 (joystick_1 ),
.ioctl_index (ioctl_index ),
.ioctl_download (ioctl_download ),
.ioctl_addr (ioctl_addr ),
.ioctl_data (ioctl_data ),
.ioctl_wr (ioctl_wr ),
.ioctl_wait (ioctl_wait ),
.sdram_dq (SDRAM_DQ ),
.sdram_a (SDRAM_A ),
.sdram_dqml (SDRAM_DQML ),
.sdram_dqmh (SDRAM_DQMH ),
.sdram_ba (SDRAM_BA ),
.sdram_nwe (SDRAM_nWE ),
.sdram_ncas (SDRAM_nCAS ),
.sdram_nras (SDRAM_nRAS ),
.sdram_ncs (SDRAM_nCS ),
.sdram_cke (SDRAM_CKE ),
.debug (LED_USER )
);
//Bubble System resistor network gamma LUT, caculated by MAME's resnet.cpp
function [7:0] bubsys_gamma (input [4:0] bubsys_5bpp); begin
case(bubsys_5bpp)
5'd0 : bubsys_gamma = 8'h00;
5'd1 : bubsys_gamma = 8'h01;
5'd2 : bubsys_gamma = 8'h02;
5'd3 : bubsys_gamma = 8'h04;
5'd4 : bubsys_gamma = 8'h05;
5'd5 : bubsys_gamma = 8'h06;
5'd6 : bubsys_gamma = 8'h08;
5'd7 : bubsys_gamma = 8'h09;
5'd8 : bubsys_gamma = 8'h0B;
5'd9 : bubsys_gamma = 8'h0D;
5'd10: bubsys_gamma = 8'h0F;
5'd11: bubsys_gamma = 8'h12;
5'd12: bubsys_gamma = 8'h14;
5'd13: bubsys_gamma = 8'h16;
5'd14: bubsys_gamma = 8'h19;
5'd15: bubsys_gamma = 8'h1C;
5'd16: bubsys_gamma = 8'h21;
5'd17: bubsys_gamma = 8'h24;
5'd18: bubsys_gamma = 8'h29;
5'd19: bubsys_gamma = 8'h2E;
5'd20: bubsys_gamma = 8'h33;
5'd21: bubsys_gamma = 8'h39;
5'd22: bubsys_gamma = 8'h40;
5'd23: bubsys_gamma = 8'h49;
5'd24: bubsys_gamma = 8'h50;
5'd25: bubsys_gamma = 8'h5B;
5'd26: bubsys_gamma = 8'h68;
5'd27: bubsys_gamma = 8'h78;
5'd28: bubsys_gamma = 8'h8E;
5'd29: bubsys_gamma = 8'hA8;
5'd30: bubsys_gamma = 8'hCC;
5'd31: bubsys_gamma = 8'hFF;
endcase
end endfunction
wire [7:0] video_r_8bpp = status[10] ? {video_r_5bpp, 3'd0} : bubsys_gamma(video_r_5bpp);
wire [7:0] video_g_8bpp = status[10] ? {video_g_5bpp, 3'd0} : bubsys_gamma(video_g_5bpp);
wire [7:0] video_b_8bpp = status[10] ? {video_b_5bpp, 3'd0} : bubsys_gamma(video_b_5bpp);
///////////////////////////////////////////////////////////
////// SCALER
////
assign VGA_F1 = 0;
assign VGA_SCALER = status[5];
assign VGA_DISABLE = 0;
assign HDMI_FREEZE = 0;
assign HDMI_BLACKOUT = 0;
wire [1:0] ar = status[3:2];
wire no_rotate = direct_video | ~status[4];
assign VIDEO_ARX = (!ar) ? no_rotate ? 12'd4 : 12'd3 : (ar - 1'd1);
assign VIDEO_ARY = (!ar) ? no_rotate ? 12'd3 : 12'd4 : 12'd0;
arcade_video #(256,24) arcade_video (
.clk_video (CLK72M ),
.ce_pix (vcen ),
.RGB_in ({video_r_8bpp, video_g_8bpp, video_b_8bpp}),
.HBlank (hblank ),
.VBlank (vblank ),
.HSync (hsync ),
.VSync (vsync ),
.CLK_VIDEO (CLK_VIDEO ),
.CE_PIXEL (CE_PIXEL ),
.VGA_R (VGA_R ),
.VGA_G (VGA_G ),
.VGA_B (VGA_B ),
.VGA_HS (VGA_HS ),
.VGA_VS (VGA_VS ),
.VGA_DE (VGA_DE ),
.VGA_SL (VGA_SL ),
.fx (status[8:6] ), //3bit
.forced_scandoubler (forced_scandoubler ),
.gamma_bus (gamma_bus ) //22bit
);
reg flip = 1'b0;
reg rotate_ccw = 1'b0;
wire video_rotated;
screen_rotate screen_rotate ( .* );
endmodule