Rev 668 | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 668 | Rev 684 | ||
|---|---|---|---|
| Line 60... | Line 60... | ||
| 60 | 60 | ||
| 61 | input wire scr_page, // screen page (bit 3 of 7FFD) |
61 | input wire scr_page, // screen page (bit 3 of 7FFD) |
| 62 | 62 | ||
| 63 | input wire vga_on, // vga mode ON - scandoubler activated |
63 | input wire vga_on, // vga mode ON - scandoubler activated |
| 64 | 64 | ||
| 65 | input wire mode_60hz, |
65 | input wire [ 1:0] modes_raster, // 2'b00 - pentagon raster (71680 clocks) |
| - | 66 | // 2'b01 - 60Hz raster |
|
| - | 67 | // 2'b10 - 48k raster (69888 clocks) |
|
| - | 68 | // 2'b11 - 128k raster (70908 clocks) |
|
| - | 69 | ||
| - | 70 | input wire mode_contend_type, // 2'b0 - 48k/128k/+2 contend type (6 5 4 3 2 1 0 0) |
|
| - | 71 | // 2'b1 - +2a/+3 contend type (1 0 7 6 5 4 3 2) |
|
| 66 | 72 | ||
| 67 | // memory synchronization inputs |
73 | // memory synchronization inputs |
| 68 | input wire cbeg, |
74 | input wire cbeg, |
| 69 | input wire post_cbeg, |
75 | input wire post_cbeg, |
| 70 | input wire pre_cend, |
76 | input wire pre_cend, |
| Line 100... | Line 106... | ||
| 100 | input wire [ 7:0] fnt_d, |
106 | input wire [ 7:0] fnt_d, |
| 101 | input wire fnt_wr, |
107 | input wire fnt_wr, |
| 102 | 108 | ||
| 103 | output wire [ 5:0] palcolor, // for palette readback |
109 | output wire [ 5:0] palcolor, // for palette readback |
| 104 | 110 | ||
| 105 | output wire [ 7:0] fontrom_readback |
111 | output wire [ 7:0] fontrom_readback, |
| - | 112 | ||
| - | 113 | output wire contend // for 48k/128k contended memory emulation |
|
| 106 | ); |
114 | ); |
| 107 | 115 | ||
| 108 | // these decoded in video_modedecode.v |
116 | // these decoded in video_modedecode.v |
| 109 | wire mode_atm_n_pent; |
117 | wire mode_atm_n_pent; |
| 110 | wire mode_zx; |
118 | wire mode_zx; |
| Line 163... | Line 171... | ||
| 163 | wire [ 2:0] up_paper; |
171 | wire [ 2:0] up_paper; |
| 164 | wire [ 2:0] up_ink; |
172 | wire [ 2:0] up_ink; |
| 165 | wire up_pixel; |
173 | wire up_pixel; |
| 166 | 174 | ||
| 167 | 175 | ||
| - | 176 | // border sync for 48k/128k emulation |
|
| - | 177 | wire border_sync; |
|
| - | 178 | ||
| - | 179 | ||
| - | 180 | ||
| 168 | // decode video modes |
181 | // decode video modes |
| 169 | video_modedecode video_modedecode( |
182 | video_modedecode video_modedecode( |
| 170 | 183 | ||
| 171 | .clk(clk), |
184 | .clk(clk), |
| 172 | 185 | ||
| Line 196... | Line 209... | ||
| 196 | video_sync_v video_sync_v( |
209 | video_sync_v video_sync_v( |
| 197 | 210 | ||
| 198 | .clk(clk), |
211 | .clk(clk), |
| 199 | 212 | ||
| 200 | .mode_atm_n_pent(mode_atm_n_pent), |
213 | .mode_atm_n_pent(mode_atm_n_pent), |
| 201 | .mode_60hz(mode_60hz), |
214 | .modes_raster(modes_raster), |
| 202 | 215 | ||
| 203 | .hsync_start(hsync_start), |
216 | .hsync_start(hsync_start), |
| 204 | .line_start(line_start), |
217 | .line_start(line_start), |
| 205 | .hint_start(hint_start), |
218 | .hint_start(hint_start), |
| 206 | 219 | ||
| Line 218... | Line 231... | ||
| 218 | .clk(clk), |
231 | .clk(clk), |
| 219 | 232 | ||
| 220 | .mode_atm_n_pent(mode_atm_n_pent), |
233 | .mode_atm_n_pent(mode_atm_n_pent), |
| 221 | .mode_a_text (mode_a_text), |
234 | .mode_a_text (mode_a_text), |
| 222 | 235 | ||
| - | 236 | .modes_raster (modes_raster ), |
|
| - | 237 | .mode_contend_type(mode_contend_type), |
|
| 223 | 238 | ||
| 224 | .init(1'b0), |
239 | .init(1'b0), |
| 225 | 240 | ||
| 226 | .pre_cend(pre_cend), |
241 | .pre_cend(pre_cend), |
| 227 | .cend (cend ), |
242 | .cend (cend ), |
| 228 | 243 | ||
| 229 | 244 | ||
| 230 | .hblank(hblank), |
245 | .hblank(hblank), |
| 231 | .hsync(hsync), |
246 | .hsync(hsync), |
| - | 247 | .vpix(vpix), |
|
| 232 | .hpix(hpix), |
248 | .hpix(hpix), |
| 233 | 249 | ||
| 234 | .line_start(line_start), |
250 | .line_start(line_start), |
| 235 | .hsync_start(hsync_start), |
251 | .hsync_start(hsync_start), |
| 236 | 252 | ||
| 237 | .hint_start(hint_start), |
253 | .hint_start(hint_start), |
| 238 | 254 | ||
| 239 | .scanin_start(scanin_start), |
255 | .scanin_start(scanin_start), |
| 240 | 256 | ||
| 241 | .fetch_start(fetch_start), |
257 | .fetch_start(fetch_start), |
| 242 | .fetch_end (fetch_end ) |
258 | .fetch_end (fetch_end ), |
| - | 259 | ||
| - | 260 | .contend(contend), |
|
| 243 | 261 | ||
| - | 262 | .border_sync(border_sync) |
|
| 244 | ); |
263 | ); |
| 245 | 264 | ||
| 246 | 265 | ||
| 247 | // address generation |
266 | // address generation |
| 248 | video_addrgen video_addrgen( |
267 | video_addrgen video_addrgen( |
| Line 352... | Line 371... | ||
| 352 | .vpix(vpix), |
371 | .vpix(vpix), |
| 353 | 372 | ||
| 354 | .pixels(pixels), |
373 | .pixels(pixels), |
| 355 | .border(zxborder), |
374 | .border(zxborder), |
| 356 | 375 | ||
| - | 376 | .border_sync (border_sync ), |
|
| - | 377 | .border_sync_ena(modes_raster[1]), |
|
| - | 378 | ||
| 357 | .atm_palwr (atm_palwr ), |
379 | .atm_palwr (atm_palwr ), |
| 358 | .atm_paldata(atm_paldata), |
380 | .atm_paldata(atm_paldata), |
| 359 | 381 | ||
| 360 | .up_palsel(up_palsel), |
382 | .up_palsel(up_palsel), |
| 361 | .up_paper (up_paper ), |
383 | .up_paper (up_paper ), |
| Line 378... | Line 400... | ||
| 378 | 400 | ||
| 379 | .clk(clk), |
401 | .clk(clk), |
| 380 | 402 | ||
| 381 | .hsync_start(hsync_start), |
403 | .hsync_start(hsync_start), |
| 382 | 404 | ||
| - | 405 | .modes_raster(modes_raster), |
|
| - | 406 | ||
| 383 | .scanout_start(scanout_start), |
407 | .scanout_start(scanout_start), |
| 384 | 408 | ||
| 385 | .vga_hsync(vga_hsync) |
409 | .vga_hsync(vga_hsync) |
| 386 | ); |
410 | ); |
| 387 | 411 | ||