https://oldwiki.cpcwiki.eu/index.php?action=history&feed=atom&title=BIOS_Graphics_Functions 2026-08-28T13:52:39Z Revision history for this page on the wiki MediaWiki 1.25.1 https://oldwiki.cpcwiki.eu/index.php?title=BIOS_Graphics_Functions&diff=65518&oldid=prev 2010-12-19T16:40:33Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 16:40, 19 December 2010</td> </tr><tr><td colspan="2" class="diff-lineno" id="L46" >Line 46:</td> <td colspan="2" class="diff-lineno">Line 46:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160;&#160; BD4F GRA_FROM_USER_664&#160; &#160; &#160; ;in: de=x, hl=y, out: de,hl=real x,y</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160;&#160; BD4F GRA_FROM_USER_664&#160; &#160; &#160; ;in: de=x, hl=y, out: de,hl=real x,y</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160;&#160; BD52 GRA_FILL_664&#160; &#160; &#160; &#160; &#160; ;in: A=color,hl=buf,de=bufsize, out:cy=0=err</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160;&#160; BD52 GRA_FILL_664&#160; &#160; &#160; &#160; &#160; ;in: A=color,hl=buf,de=bufsize, out:cy=0=err</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:BIOS]]</ins></div></td></tr> <!-- diff cache key wikidb:diff:version:1.11a:oldid:39560:newid:65518 --> </table>

MacDeath https://oldwiki.cpcwiki.eu/index.php?title=BIOS_Graphics_Functions&diff=39560&oldid=prev 2010-01-24T21:59:01Z

<p>Created page with &#039;== Graphics Init == BBBA GRA_INITIALIZE == Graphics Normal Drawing Functions == BBC0 GRA_MOVE_ABSOLUTE ;in: de=x, hl=y ;\set current coordinate BBC3 GRA_MOVE_RELATIVE ;in…&#039;</p> <p><b>New page</b></p><div>== Graphics Init ==<br /> BBBA GRA_INITIALIZE<br /> <br /> == Graphics Normal Drawing Functions ==<br /> BBC0 GRA_MOVE_ABSOLUTE ;in: de=x, hl=y ;\set current coordinate<br /> BBC3 GRA_MOVE_RELATIVE ;in: de=x, hl=y ;/<br /> BBEA GRA_PLOT_ABSOLUTE ;in: de=x, hl=y ;\draw pixel at specified coordinate<br /> BBED GRA_PLOT_RELATIVE ;in: de=x, hl=y ;/<br /> BBF6 GRA_LINE_ABSOLUTE ;in: de=x, hl=y ;\draw line from current coordinate<br /> BBF9 GRA_LINE_RELATIVE ;in: de=x, hl=y ;/to specified target coordinate<br /> BBF0 GRA_TEST_ABSOLUTE ;in: de=x, hl=y, out: A=color (0..15) of pixel<br /> BBF3 GRA_TEST_RELATIVE ;in: de=x, hl=y, out: A=color (0..15) of pixel<br /> BBC6 GRA_ASK_CURSOR ;out: de=x, hl=y ;-get current coordinate<br /> BBFC GRA_WR_CHAR ;in: A=char ;-draw char at current coordinate<br /> <br /> == Graphics Pen/Paper ==<br /> BBDE GRA_SET_PEN ;in: A=color (0..15) for PLOT/LINE/WR_CHAR<br /> BBE1 GRA_GET_PEN ;out: A=color (0..15)<br /> BBE4 GRA_SET_PAPER ;in: A=color (0..15) for CLEAR_WINDOW/WR_CHAR<br /> BBE7 GRA_GET_PAPER ;out: A=color (0..15<br /> <br /> == Graphics Origin ==<br /> BBC9 GRA_SET_ORIGIN ;in: de=x, hl=y (also does MOVE 0,0)<br /> BBCC GRA_GET_ORIGIN ;out: de=x, hl=y<br /> Normally, coordinate 0,0 is the lower-left of the screen. By changing the origin it can be moved, for example, to the middle of the screen.<br /> <br /> == Graphics Window ==<br /> BBCF GRA_SET_WIN_WIDTH ;in: de=x1/left, hl=x2/right<br /> BBD2 GRA_SET_WIN_HEIGHT ;in: de=y1/top, hl=y2/bottom<br /> BBD5 GRA_GET_WIN_WIDTH ;out: de=x1/left, hl=x2/right<br /> BBD8 GRA_GET_WIN_HEIGHT ;out: de=y1/top, hl=y2/bottom<br /> BBDB GRA_CLEAR_WINDOW ;fill window by PAPER (also does MOVE 0,0)<br /> Drawing operations are clipped to the window region. The x1/x2 values are rounded to byte-boundaries in VRAM.<br /> <br /> == Graphics Hooks ==<br /> BBBD GRA_RESET_HOOKS ;out: [BDDC+00h..0Ah]=Default jump opcodes/addresses<br /> BDDC HOOK_GRA_PLOT ;in: de=x, hl=y ;\JP NNNNh opcodes,<br /> BDDF HOOK_GRA_TEST ;in: de=x, hl=y, out: A=color ; with NNNNh in LO ROM<br /> BDE2 HOOK_GRA_LINE ;in: de=x, hl=y ;/(which must be on)<br /> <br /> == New Graphics Functions (664 and up only) ==<br /> BD43 GRA_DEFAULT_664 ;SCR_WRITE=?, BACK=00h,FIRST=FFh,MASK=FFh<br /> BD46 GRA_SET_BACK_664 ;A=background mode (FFh=transparent)<br /> BD49 GRA_SET_FIRST_664 ;in: A=flag (00h,FFh;1st pix of LINE)<br /> BD4C GRA_SET_LINE_MASK_664 ;in: A=mask<br /> BD4F GRA_FROM_USER_664 ;in: de=x, hl=y, out: de,hl=real x,y<br /> BD52 GRA_FILL_664 ;in: A=color,hl=buf,de=bufsize, out:cy=0=err</div>

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