{"id":2960,"date":"2021-07-24T15:09:04","date_gmt":"2021-07-24T12:09:04","guid":{"rendered":"https:\/\/demensdeum.com\/blog\/?p=2960"},"modified":"2024-12-16T22:32:23","modified_gmt":"2024-12-16T19:32:23","slug":"writing-stuff-in-assembly-for-sega-genesis-2","status":"publish","type":"post","link":"https:\/\/demensdeum.com\/blog\/zh\/2021\/07\/24\/writing-stuff-in-assembly-for-sega-genesis-2\/","title":{"rendered":"\u4e3a Sega Genesis #2 \u7f16\u5199\u6c47\u7f16\u8bed\u8a00"},"content":{"rendered":"<p>\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5c06\u63cf\u8ff0\u5982\u4f55\u4f7f\u7528\u6c47\u7f16\u8bed\u8a00\u5c06\u989c\u8272\u52a0\u8f7d\u5230\u5c06\u68cb\u8c03\u8272\u677f\u4e2d\u3002<br \/>Exodus \u6a21\u62df\u5668\u4e2d\u7684\u6700\u7ec8\u7ed3\u679c\u5c06\u5982\u4e0b\u6240\u793a\uff1a<br \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2964\" src=\"https:\/\/demensdeum.com\/blog\/wp-content\/uploads\/2021\/07\/result.png\" alt=\"\" width=\"804\" height=\"652\" srcset=\"https:\/\/demensdeum.com\/blog\/wp-content\/uploads\/2021\/07\/result.png 804w, https:\/\/demensdeum.com\/blog\/wp-content\/uploads\/2021\/07\/result-300x243.png 300w, https:\/\/demensdeum.com\/blog\/wp-content\/uploads\/2021\/07\/result-768x623.png 768w\" sizes=\"auto, (max-width: 804px) 100vw, 804px\" \/><br \/>\n\u4e3a\u4e86\u8ba9\u8fd9\u4e2a\u8fc7\u7a0b\u66f4\u7b80\u5355\uff0c\u5728\u7f51\u4e0a\u627e\u5230\u4e86\u4e00\u4e2apdf\uff0c\u53eb\u505a<strong>Genesis Software Manual (1989)<\/strong>\uff0c\u5b83\u975e\u5e38\u8be6\u7ec6\u5730\u63cf\u8ff0\u4e86\u6574\u4e2a\u8fc7\u7a0b\uff0c\u5b9e\u9645\u4e0a\uff0c\u8fd9\u4e2a\u8bf4\u660e\u662f\u5bf9\u539f\u59cb\u624b\u518c\u7684\u6ce8\u91ca\u3002< \/p><\/p>\n<p>\u4e3a\u4e86\u5c06\u989c\u8272\u5199\u5165Sega\u6a21\u62df\u5668\u7684VDP\u82af\u7247\uff0c\u60a8\u9700\u8981\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a<\/p>\n<ul>\n<li>\u505c\u7528 TMSS \u4fdd\u62a4<\/li>\n<li>\u5c06\u6b63\u786e\u7684\u53c2\u6570\u5199\u5165VDP\u5bc4\u5b58\u5668<\/li>\n<li>\u5c06\u6240\u9700\u7684\u989c\u8272\u5199\u5165CRAM<\/li>\n<\/ul>\n<p>\u5bf9\u4e8e\u7ec4\u88c5\uff0c\u6211\u4eec\u5c06\u4f7f\u7528 vasmm68k_mot \u548c\u6700\u559c\u6b22\u7684\u6587\u672c\u7f16\u8f91\u5668\uff0c\u4f8b\u5982 echo\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u7ec4\u88c5\uff1a<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-unknown\" data-lang=\"unknown\"><code><h3>\u041f\u043e\u0440\u0442\u044b VDP<\/h3>\n<p>VDP \u0447\u0438\u043f \u043e\u0431\u0449\u0430\u0435\u0442\u0441\u044f \u0441 M68K \u0447\u0435\u0440\u0435\u0437 \u0434\u0432\u0430 \u043f\u043e\u0440\u0442\u0430 \u0432 \u043e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 &#8211; \u043f\u043e\u0440\u0442 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u0438 \u043f\u043e\u0440\u0442 \u0434\u0430\u043d\u043d\u044b\u0445.<br \/>\n\u041f\u043e \u0441\u0443\u0442\u0438:<\/p>\n<ol>\n<li>\u0427\u0435\u0440\u0435\u0437 \u043f\u043e\u0440\u0442 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u043c\u043e\u0436\u043d\u043e \u0432\u044b\u0441\u0442\u0430\u0432\u043b\u044f\u0442\u044c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u043c VDP.<\/li>\n<li>\u0422\u0430\u043a\u0436\u0435 \u043f\u043e\u0440\u0442 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u0435\u043c \u043d\u0430 \u0442\u0443 \u0447\u0430\u0441\u0442\u044c VDP (VRAM, CRAM, VSRAM etc.) \u0447\u0435\u0440\u0435\u0437 \u043a\u043e\u0442\u043e\u0440\u0443\u044e \u043f\u0435\u0440\u0435\u0434\u0430\u044e\u0442\u0441\u044f \u0434\u0430\u043d\u043d\u044b\u0435 \u0447\u0435\u0440\u0435\u0437 \u043f\u043e\u0440\u0442 \u0434\u0430\u043d\u043d\u044b\u0445<\/li>\n<\/ol>\n<p><em>\u0418\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f: \u0421\u0435\u0433\u0430 \u0441\u043e\u0445\u0440\u0430\u043d\u0438\u043b\u0430 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u044c \u0441 \u0438\u0433\u0440\u0430\u043c\u0438 Master System, \u043d\u0430 \u0447\u0442\u043e \u0443\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442 MODE 4 \u0438\u0437 \u043c\u0430\u043d\u0443\u0430\u043b\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430, \u0432 \u043d\u0435\u043c VDP \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u0432 \u0440\u0435\u0436\u0438\u043c Master System.<\/em><\/p>\n<p>\u041e\u0431\u044a\u044f\u0432\u0438\u043c \u043f\u043e\u0440\u0442\u044b \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u0438 \u0434\u0430\u043d\u043d\u044b\u0445:<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-unknown\" data-lang=\"unknown\"><code>vdp_data_port        = $C00000<\/code><\/pre>\n<h3>\u041e\u0442\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u0437\u0430\u0449\u0438\u0442\u044b TMSS<\/h3>\n<p>\u0417\u0430\u0449\u0438\u0442\u0430 \u043e\u0442 \u043d\u0435\u043b\u0438\u0446\u0435\u043d\u0437\u0438\u043e\u043d\u043d\u044b\u0445 \u0438\u0433\u0440 TMSS \u0438\u043c\u0435\u0435\u0442 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u043e\u0432 \u0440\u0430\u0437\u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0438, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440 \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u0447\u0442\u043e\u0431\u044b \u0434\u043e \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u043a VDP \u0432 \u0430\u0434\u0440\u0435\u0441\u043d\u043e\u043c \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0435 A1 \u043b\u0435\u0436\u0430\u043b\u0430 \u0441\u0442\u0440\u043e\u043a\u0430 \u201cSEGA\u201d.<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-unknown\" data-lang=\"unknown\"><code>MOVE.B A1,D0; \u041f\u043e\u043b\u0443\u0447\u0430\u0435\u043c \u0432\u0435\u0440\u0441\u0438\u044e \u0445\u0430\u0440\u0434\u0432\u0430\u0440\u044b \u0446\u0438\u0444\u0440\u043e\u0439 \u0438\u0437 A1 \u0432 \u0440\u0435\u0433\u0438\u0441\u0442\u0440 D0 \nANDI.B 0x0F,D0; \u041f\u043e \u043c\u0430\u0441\u043a\u0435 \u0431\u0435\u0440\u0435\u043c \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0435 \u0431\u0438\u0442\u044b, \u0447\u0442\u043e\u0431\u044b \u043d\u0438\u0447\u0435\u0433\u043e \u043d\u0435 \u0441\u043b\u043e\u043c\u0430\u0442\u044c \nBEQ.B SkipTmss; \u0415\u0441\u043b\u0438 \u0432\u0435\u0440\u0441\u0438\u044f \u0440\u0430\u0432\u043d\u0430 0, \u0441\u043a\u043e\u0440\u0435\u0435 \u0432\u0441\u0435\u0433\u043e \u044d\u0442\u043e \u044f\u043f\u043e\u043d\u043a\u0430 \u0438\u043b\u0438 \u044d\u043c\u0443\u043b\u044f\u0442\u043e\u0440 \u0431\u0435\u0437 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u043d\u043e\u0433\u043e TMSS, \u0442\u043e\u0433\u0434\u0430 \u0438\u0434\u0435\u043c \u0432 \u0441\u0430\u0431\u0440\u0443\u0442\u0438\u043d\u0443 SkipTmss \nMOVE.L \"SEGA\",A1; \u0418\u043b\u0438 \u0437\u0430\u043f\u0438\u0441\u044b\u0432\u0430\u0435\u043c \u0441\u0442\u0440\u043e\u043a\u0443 SEGA \u0432 A1 \n<\/code><\/pre>\n<\/div>\n<h3>\u5c06\u6b63\u786e\u7684\u53c2\u6570\u5199\u5165VDP\u5bc4\u5b58\u5668<\/h3>\n<p>\u4e3a\u4ec0\u4e48\u8981\u5728 VDP \u5bc4\u5b58\u5668\u4e2d\u8bbe\u7f6e\u6b63\u786e\u7684\u53c2\u6570\uff1f\u6211\u4eec\u7684\u60f3\u6cd5\u662f\uff0cVDP \u53ef\u4ee5\u505a\u5f88\u591a\u4e8b\u60c5\uff0c\u56e0\u6b64\u5728\u6e32\u67d3\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u4f7f\u7528\u5fc5\u8981\u7684\u529f\u80fd\u5bf9\u5176\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u5426\u5219\u5b83\u6839\u672c\u65e0\u6cd5\u7406\u89e3\u4ed6\u4eec\u60f3\u8981\u4ece\u4e2d\u5f97\u5230\u4ec0\u4e48\u3002<\/p>\n<p>\u6bcf\u4e2a\u5bc4\u5b58\u5668\u8d1f\u8d23\u7279\u5b9a\u7684\u8bbe\u7f6e\/\u64cd\u4f5c\u6a21\u5f0f\u3002 Segov \u624b\u518c\u6307\u51fa\u4e86 24 \u4e2a\u5bc4\u5b58\u5668\u4e2d\u6bcf\u4e2a\u5bc4\u5b58\u5668\u7684\u6240\u6709\u4f4d\/\u6807\u5fd7\uff0c\u4ee5\u53ca\u5bc4\u5b58\u5668\u672c\u8eab\u7684\u63cf\u8ff0\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u91c7\u7528\u73b0\u6210\u7684\u53c2\u6570\u4ee5\u53ca\u6765\u81ea bigevilcorporation \u535a\u5ba2\u7684\u8bc4\u8bba\uff1a<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-unknown\" data-lang=\"unknown\"><code>\nVDPReg0:   dc.b $14 ;  0: H interrupt on, palettes on \nVDPReg1:   dc.b $74 ;  1: V interrupt on, display on, DMA on, Genesis mode on \nVDPReg2:   dc.b $30 ;  2: Pattern table for Scroll Plane A at VRAM $C000 \n                    ;     (bits 3-5 = bits 13-15) \nVDPReg3:   dc.b $00 ;  3: Pattern table for Window Plane at VRAM $0000 \n                    ;     (disabled) (bits 1-5 = bits 11-15) \nVDPReg4:   dc.b $07 ;  4: Pattern table for Scroll Plane B at VRAM $E000 \n                    ;     (bits 0-2 = bits 11-15) \nVDPReg5:   dc.b $78 ;  5: Sprite table at VRAM $F000 (bits 0-6 = bits 9-15) \nVDPReg6:   dc.b $00 ;  6: Unused \nVDPReg7:   dc.b $00 ;  7: Background colour - bits 0-3 = colour, \n                    ;     bits 4-5 = palette \nVDPReg8:   dc.b $00 ;  8: Unused \nVDPReg9:   dc.b $00 ;  9: Unused \nVDPRegA:   dc.b $FF ; 10: Frequency of Horiz. interrupt in Rasters \n                    ;     (number of lines travelled by the beam) \nVDPRegB:   dc.b $00 ; 11: External interrupts off, V scroll fullscreen, \n                    ;     H scroll fullscreen \nVDPRegC:   dc.b $81 ; 12: Shadows and highlights off, interlace off, \n                    ;     H40 mode (320 x 224 screen res) \nVDPRegD:   dc.b $3F ; 13: Horiz. scroll table at VRAM $FC00 (bits 0-5) \nVDPRegE:   dc.b $00 ; 14: Unused \nVDPRegF:   dc.b $02 ; 15: Autoincrement 2 bytes \nVDPReg10:  dc.b $01 ; 16: Vert. scroll 32, Horiz. scroll 64 \nVDPReg11:  dc.b $00 ; 17: Window Plane X pos 0 left \n                    ;     (pos in bits 0-4, left\/right in bit 7) \nVDPReg12:  dc.b $00 ; 18: Window Plane Y pos 0 up \n                    ;     (pos in bits 0-4, up\/down in bit 7) \nVDPReg13:  dc.b $FF ; 19: DMA length lo byte \nVDPReg14:  dc.b $FF ; 20: DMA length hi byte \nVDPReg15:  dc.b $00 ; 21: DMA source address lo byte \nVDPReg16:  dc.b $00 ; 22: DMA source address mid byte \nVDPReg17:  dc.b $80 ; 23: DMA source address hi byte, \n                    ;     memory-to-VRAM mode (bits 6-7)  \n<\/code><\/pre>\n<\/div>\n<p>\u597d\u7684\uff0c\u73b0\u5728\u8ba9\u6211\u4eec\u8fdb\u5165\u63a7\u5236\u7aef\u53e3\u5e76\u5c06\u6240\u6709\u6807\u5fd7\u5199\u5165 VDP \u5bc4\u5b58\u5668\uff1a<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-unknown\" data-lang=\"unknown\"><code>    move.l  #VDPRegisters,a0 ; \u041f\u0438\u0448\u0435\u043c \u0430\u0434\u0440\u0435\u0441 \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u043e\u0432 \u0432 A1 \n    move.l  #$18,d0          ; \u0421\u0447\u0435\u0442\u0447\u0438\u043a \u0446\u0438\u043a\u043b\u0430 - 24 = 18 (HEX) \u0432 D0 \n    move.l  #$00008000,d1    ; \u0413\u043e\u0442\u043e\u0432\u0438\u043c \u043a\u043e\u043c\u0430\u043d\u0434\u0443 \u043d\u0430 \u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0440\u0435\u0433\u0438\u0441\u0442\u0440 VDP \u043f\u043e \u0438\u043d\u0434\u0435\u043a\u0441\u0443 0, \u043f\u043e \u043c\u0430\u043d\u0443\u0430\u043b\u0443 - 1000 0000 0000 0000 (BIN) = 8000 (HEX) \n\nFillInitialStateForVDPRegistersLoop: \n    move.b  (a0)+,d1         ; \u0417\u0430\u043f\u0438\u0441\u044b\u0432\u0430\u0435\u043c \u0432 D1 \u0438\u0442\u043e\u0433\u043e\u0432\u043e\u0435 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430 VDP \u0438\u0437 \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u043e\u0432, \u043d\u0430 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0443 \u0432 \u043f\u043e\u0440\u0442 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f VDP  \n    move.w  d1,vdp_control_port     ; \u041e\u0442\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u043c \u0438\u0442\u043e\u0433\u043e\u0432\u0443\u044e \u043a\u043e\u043c\u0430\u043d\u0434\u0443 + \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0438\u0437 D1 \u0432 \u043f\u043e\u0440\u0442 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f VDP \n    add.w   #$0100,d1        ; \u041f\u043e\u0434\u043d\u0438\u043c\u0430\u0435\u043c \u0438\u043d\u0434\u0435\u043a\u0441 \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430 VDP \u043d\u0430 1 (\u0431\u0438\u043d\u0430\u0440\u043d\u043e\u0435 \u0441\u043b\u043e\u0436\u0435\u043d\u0438\u0435 +1 \u043a \u0438\u043d\u0434\u0435\u043a\u0441\u0443 \u043f\u043e \u043c\u0430\u043d\u0443\u0430\u043b\u0443 \u0421\u0435\u0433\u0438) \n    dbra    d0,FillInitialStateForVDPRegistersLoop ; \u0423\u043c\u0435\u043d\u044c\u0448\u0430\u0435\u043c \u0441\u0447\u0435\u0442\u0447\u0438\u043a \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u043e\u0432, \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u043c \u0446\u0438\u043a\u043b \u0435\u0441\u043b\u0438 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e<\/code><\/pre>\n<p>\u0421\u0430\u043c\u043e\u0435 \u0441\u043b\u043e\u0436\u043d\u043e\u0435 \u044d\u0442\u043e \u043f\u0440\u043e\u0447\u0438\u0442\u0430\u0442\u044c \u043c\u0430\u043d\u0443\u0430\u043b \u0438 \u043f\u043e\u043d\u044f\u0442\u044c \u0432 \u043a\u0430\u043a\u043e\u043c \u0444\u043e\u0440\u043c\u0430\u0442\u0435 \u043f\u043e\u0434\u0430\u044e\u0442\u0441\u044f \u0434\u0430\u043d\u043d\u044b\u0435 \u043d\u0430 \u043f\u043e\u0440\u0442 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f, \u043e\u043f\u044b\u0442\u043d\u044b\u0435 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u0440\u0430\u0437\u0431\u0435\u0440\u0443\u0442\u0441\u044f \u0441\u0440\u0430\u0437\u0443, \u0430 \u0432\u043e\u0442 \u043d\u0435\u043e\u043f\u044b\u0442\u043d\u044b\u0435&#8230; \u041d\u0435\u043c\u043d\u043e\u0433\u043e \u043f\u043e\u0434\u0443\u043c\u0430\u044e\u0442 \u0438 \u043f\u043e\u0439\u043c\u0443\u0442, \u0447\u0442\u043e \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441 \u0434\u043b\u044f \u0437\u0430\u043f\u0438\u0441\u0438 \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u043e\u0432 \u0442\u0430\u043a\u043e\u0439:<\/p>\n<p>0B100(5 \u0431\u0438\u0442 &#8211; \u0438\u043d\u0434\u0435\u043a\u0441 \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430)(8 \u0431\u0438\u0442\/\u0431\u0430\u0439\u0442 &#8211; \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435)<\/p>\n<p>0B1000001001000101 &#8211; \u0437\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u0432 \u0440\u0435\u0433\u0438\u0441\u0442\u0440 VDP 2 (00010), \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0444\u043b\u0430\u0436\u043a\u043e\u0432 01000101.<\/p>\n<h3>\u0417\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u043d\u0443\u0436\u043d\u044b\u0435 \u0446\u0432\u0435\u0442\u0430 \u0432 CRAM<\/h3>\n<p>\u0414\u0430\u043b\u0435\u0435 \u0438\u0434\u0435\u043c \u043f\u0438\u0441\u0430\u0442\u044c \u0434\u0432\u0430 \u0446\u0432\u0435\u0442\u0430 \u0432 \u043f\u0430\u043c\u044f\u0442\u044c \u0446\u0432\u0435\u0442\u043e\u0432 CRAM (Color RAM). \u0414\u043b\u044f \u044d\u0442\u043e\u0433\u043e \u043f\u0438\u0448\u0435\u043c \u0432 \u043f\u043e\u0440\u0442 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u043a\u043e\u043c\u0430\u043d\u0434\u0443 \u043d\u0430 \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0446\u0432\u0435\u0442\u0443 \u043f\u043e \u0438\u043d\u0434\u0435\u043a\u0441\u0443 0 \u0432 CRAM \u0438 \u043e\u0442\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u043c \u043f\u043e \u0434\u0430\u0442\u0430 \u043f\u043e\u0440\u0442\u0443 \u0446\u0432\u0435\u0442. \u0412\u0441\u0435!<\/p>\n<p>\u041f\u0440\u0438\u043c\u0435\u0440:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-unknown\" data-lang=\"unknown\"><code>    move.l  #$C0000000,vdp_control_port ; \u0414\u043e\u0441\u0442\u0443\u043f \u043a \u0446\u0432\u0435\u0442\u0443 \u043f\u043e \u0438\u043d\u0434\u0435\u043a\u0441\u0443 0 \u0432 CRAM \u0447\u0435\u0440\u0435\u0437 \u043f\u043e\u0440\u0442 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f  \n    move.w  #228,d0; \u0426\u0432\u0435\u0442 \u0432 D0 \n    move.w  d0,vdp_data_port; \u041e\u0442\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u043c \u0446\u0432\u0435\u0442 \u0432 \u043f\u043e\u0440\u0442 \u0434\u0430\u043d\u043d\u044b\u0445 \n<\/code><\/pre>\n<\/div>\n<p>\u5728 Exodus \u7684\u6a21\u62df\u5668\u4e2d\u6784\u5efa\u5e76\u8fd0\u884c\u540e\uff0c\u60a8\u7684\u5c4f\u5e55\u5e94\u586b\u5145\u989c\u8272 228\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u6839\u636e\u6700\u540e\u4e00\u4e2a\u5b57\u8282 127 \u7528\u7b2c\u4e8c\u79cd\u989c\u8272\u586b\u5145\u5b83\u3002<\/p>\n<p><\u4ee3\u7801><\/\u4ee3\u7801><\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-unknown\" data-lang=\"unknown\"><code>  move.l  #$C07f0000,vdp_control_port ; \u0414\u043e\u0441\u0442\u0443\u043f \u043a \u0446\u0432\u0435\u0442\u0443 \u043f\u043e \u0431\u0430\u0439\u0442\u0443 127 \u0432 CRAM \u0447\u0435\u0440\u0435\u0437 \u043f\u043e\u0440\u0442 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \n  move.w  #69,d0; \u0426\u0432\u0435\u0442 \u0432 D0 \n  move.w  d0,vdp_data_port; \u041e\u0442\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u043c \u0446\u0432\u0435\u0442 \u0432 \u043f\u043e\u0440\u0442 \u0434\u0430\u043d\u043d\u044b\u0445 \n<\/code><\/pre>\n<\/div>\n<h3>\u94fe\u63a5<\/h3>\n<p><a href=\"https:\/\/gitlab.com\/demensdeum\/segagenesissamples\" target=\"_blank\" rel=\"noopener\">https:\/\/gitlab.com\/demensdeum\/segagenesissamples<\/a><br \/><a href=\"https:\/\/www.exodusemulator.com\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.exodusemulator.com\/<\/a><br \/>\n<a href=\"http:\/\/sun.hasenbraten.de\/vasm\/\" target=\"_blank\" rel=\"noopener\">http:\/\/sun.hasenbraten.de\/vasm\/<\/a><br \/>\n<a href=\"https:\/\/tomeko.net\/online_tools\/bin_to_32bit_hex.php?lang=en\" target=\"_blank\" rel=\"noopener\">https:\/\/tomeko.net\/online_tools\/bin_to_32bit_hex.php?lang=en<\/a><\/p>\n<h3>\u6765\u6e90<\/h3>\n<p><a href=\"https:\/\/namelessalgorithm.com\/genesis\/blog\/genesis\/\" target=\"_blank\" rel=\"noopener\">https:\/\/namelessalgorithm.com\/genesis\/blog\/genesis\/<\/\u4e00\u4e2a><br \/><a href=\"https:\/\/plutiedev.com\/vdp-commands\" target=\"_blank\" rel=\"noopener\">https:\/\/plutiedev.com\/vdp-commands<\/a><br \/>\n<a href=\"https:\/\/huguesjohnson.com\/programming\/genesis\/palettes\/\" target=\"_blank\" rel=\"noopener\">https:\/\/huguesjohnson.com\/programming\/genesis\/palettes\/<\/a><br \/>\n<a href=\"https:\/\/www.chibiakumas.com\/68000\/helloworld.php#LessonH5\" target=\"_blank\" rel=\"noopener\">https:\/\/www.chibiakumas.com\/68000\/helloworld.php#LessonH5<\/a><br \/>\n<a href=\"https:\/\/blog.bigevilcorporation.co.uk\/2012\/03\/09\/sega-megadrive-3-awaking-the-beast\/\" target=\"_blank\" rel=\"noopener\">https:\/\/blog.bigevilcorporation.co.uk\/2012\/03\/09\/sega-megadrive-3-awaking-the-beast\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5c06\u63cf\u8ff0\u5982\u4f55\u4f7f\u7528\u6c47\u7f16\u8bed\u8a00\u5c06\u989c\u8272\u52a0\u8f7d\u5230\u5c06\u68cb\u8c03\u8272\u677f\u4e2d\u3002Exodus \u6a21\u62df\u5668\u4e2d\u7684\u6700\u7ec8\u7ed3\u679c\u5c06\u5982\u4e0b\u6240\u793a\uff1a \u4e3a\u4e86\u8ba9\u8fd9\u4e2a\u8fc7\u7a0b\u66f4\u7b80\u5355\uff0c\u5728\u7f51\u4e0a\u627e\u5230\u4e86\u4e00\u4e2apdf\uff0c\u53eb\u505aGenesis Software Manual (1989)\uff0c\u5b83\u975e\u5e38\u8be6\u7ec6\u5730\u63cf\u8ff0\u4e86\u6574\u4e2a\u8fc7\u7a0b\uff0c\u5b9e\u9645\u4e0a\uff0c\u8fd9\u4e2a\u8bf4\u660e\u662f\u5bf9\u539f\u59cb\u624b\u518c\u7684\u6ce8\u91ca\u3002< \/p> \u4e3a\u4e86\u5c06\u989c\u8272\u5199\u5165Sega\u6a21\u62df\u5668\u7684VDP\u82af\u7247\uff0c\u60a8\u9700\u8981\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a \u505c\u7528 TMSS \u4fdd\u62a4 \u5c06\u6b63\u786e\u7684\u53c2\u6570\u5199\u5165VDP\u5bc4\u5b58\u5668 \u5c06\u6240\u9700\u7684\u989c\u8272\u5199\u5165CRAM \u5bf9\u4e8e\u7ec4\u88c5\uff0c\u6211\u4eec\u5c06\u4f7f\u7528 vasmm68k_mot \u548c\u6700\u559c\u6b22\u7684\u6587\u672c\u7f16\u8f91\u5668\uff0c\u4f8b\u5982 echo\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u7ec4\u88c5\uff1a \u041f\u043e\u0440\u0442\u044b VDP VDP \u0447\u0438\u043f \u043e\u0431\u0449\u0430\u0435\u0442\u0441\u044f \u0441 M68K \u0447\u0435\u0440\u0435\u0437 \u0434\u0432\u0430 \u043f\u043e\u0440\u0442\u0430 \u0432 \u043e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 &#8211; \u043f\u043e\u0440\u0442 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u0438 \u043f\u043e\u0440\u0442 \u0434\u0430\u043d\u043d\u044b\u0445. \u041f\u043e \u0441\u0443\u0442\u0438: \u0427\u0435\u0440\u0435\u0437 \u043f\u043e\u0440\u0442 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u043c\u043e\u0436\u043d\u043e \u0432\u044b\u0441\u0442\u0430\u0432\u043b\u044f\u0442\u044c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u043c VDP. \u0422\u0430\u043a\u0436\u0435 \u043f\u043e\u0440\u0442 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u0435\u043c \u043d\u0430 \u0442\u0443 \u0447\u0430\u0441\u0442\u044c VDP<a class=\"more-link\" href=\"https:\/\/demensdeum.com\/blog\/zh\/2021\/07\/24\/writing-stuff-in-assembly-for-sega-genesis-2\/\">Continue reading <span class=\"screen-reader-text\">&#8220;\u4e3a Sega Genesis #2 \u7f16\u5199\u6c47\u7f16\u8bed\u8a00&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[61,52],"tags":[165,174],"class_list":["post-2960","post","type-post","status-publish","format-standard","hentry","category-techie","category-tutorials","tag-asm","tag-vasm","entry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"zh","enabled_languages":["en","ru","zh","de","fr","ja","pt","hi"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"ru":{"title":true,"content":true,"excerpt":false},"zh":{"title":true,"content":true,"excerpt":false},"de":{"title":true,"content":true,"excerpt":false},"fr":{"title":true,"content":true,"excerpt":false},"ja":{"title":true,"content":true,"excerpt":false},"pt":{"title":true,"content":true,"excerpt":false},"hi":{"title":false,"content":false,"excerpt":false}}},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/posts\/2960","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/comments?post=2960"}],"version-history":[{"count":21,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/posts\/2960\/revisions"}],"predecessor-version":[{"id":3897,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/posts\/2960\/revisions\/3897"}],"wp:attachment":[{"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/media?parent=2960"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/categories?post=2960"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/tags?post=2960"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}