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annotate sf2_vram_map.txt @ 995:2bc27415565b

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Fix some stuff with interrupt timing. The change in adjust_int_cycle gets Overdrive working again (vint was not being preferred over hint in some cases). One of the changes seems to have broken Fatal Rewind again, but no other regressions that I can see.
author Michael Pavone <pavone@retrodev.com>
date Sat, 30 Apr 2016 08:37:55 -0700
parents b231162c8fdd
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 0000: single color blocks
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2 0200: Random symbols????
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3 0400-0C00: Font
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4 0C00-0E??: Score font
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5 0E??: Player name displays
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7 2000-3000: floor (mostly, some garbage around 2800 and 2A00)
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8 3000-6C00: background
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9 6C00-8000: not graphics
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10 8000-~8A00: bat/bird sprites, special attack text
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11 8A00-9000: ?????
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12 9000-9200: More special attack text
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13 9200-9600: another font
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14 9800-AA00: special attack effects?
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15 AC00-B000: ????
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16 B000-B500: character sprite
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17 ????
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18 C000-C500: chracter sprite
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19 D000-DA00: window name table
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20 DA00-DC00: Sprite attribute table
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21 DC00-E000: horizontal scroll data
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22 E000-????: plane A&B name table
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23 C500-FFFF: not graphics
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25 VDP Registers:
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26 Mode
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27 00 - 14
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28 01 - 64
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29 Scroll A Name Table Address: E000
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30 02 - 38
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31 Window Name Table Address: D000
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32 03 - 34
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33 Scroll B Name Table Address: E000
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34 04 - 07
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35 Sprite Attribute Table Address: DA00
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36 05 - 6D
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37 06 - 00
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38 Backdrop color - 0
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39 07 - 00
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40 08 - 00
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41 09 - 00
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42 HINT Counter
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43 0A - AF
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44 Mode - Full screen vertical scroll, line horizontal scroll, external ints disabled, 32 cell display, no interlacing
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45 0B - 03
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46 0C - 00
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47 H Scroll Data Address: DC00
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48 0D - 37
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49 0E - 00
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50 Auto increment
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51 0F - 02
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52 Scroll Size
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53 10 - 11
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54 Window H Pos
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55 11 - 00
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56 Window V Pos
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57 12 - 05
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58 DMA transfer length
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59 13 - 00
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60 14 - 00
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61 DMA source address and mode
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62 15 - DB
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63 16 - CF
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64 17 - 7F