https://spectrum.alioth.net/doc/index.php?action=history&feed=atom&title=Ixcall 2026-05-25T08:13:39Z Revision history for this page on the wiki MediaWiki 1.37.1 https://spectrum.alioth.net/doc/index.php?title=Ixcall&diff=190&oldid=prev 2008-09-06T13:59:59Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:59, 6 September 2008</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''HLCALL''' - call a routine pointed to by hl using the pager</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''HLCALL''' - call a routine pointed to by hl using the pager</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; 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;"></ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''IXCALL''' - call a routine pointed to by ix using the pager</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''IXCALL''' - call a routine pointed to by ix using the pager</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> </table>

Winston https://spectrum.alioth.net/doc/index.php?title=Ixcall&diff=189&oldid=prev 2008-09-06T13:59:47Z

<p>New page: &#039;&#039;&#039;HLCALL&#039;&#039;&#039; - call a routine pointed to by hl using the pager &#039;&#039;&#039;IXCALL&#039;&#039;&#039; - call a routine pointed to by ix using the pager == Synopsis == ld hl, ADDRESS call HLCALL ld i...</p> <p><b>New page</b></p><div>'''HLCALL''' - call a routine pointed to by hl using the pager<br /> '''IXCALL''' - call a routine pointed to by ix using the pager<br /> <br /> == Synopsis ==<br /> <br /> ld hl, ADDRESS<br /> call HLCALL<br /> <br /> ld ix, ADDRESS<br /> call HLCALL<br /> <br /> == Description ==<br /> <br /> The HLCALL and IXCALL symbols are entry points into the Spectranet ROM. The hardware traps the CALL instruction, and pages in the Spectranet ROM. The argument, in the HL register pair for HLCALL, or IX for IXCALL, should be an address in the indirect call table (0x3E00 to 0x3EFF), which is defined in the file [http://spectrum.alioth.net/svn/filedetails.php?repname=Spectranet&amp;path=%2Ftrunk%2From%2Fspectranet.asm spectranet.asm].<br /> <br /> On return from the routine that was specified, the Spectranet ROM is paged out, and the ZX ROM is paged back in. Therefore, this mechanism should not be used for code that resides in the Spectranet flash ROM or paged RAM, rather, a CALL instruction should reference the address in the indirect table itself. Similarly, code that runs from main memory where the Spectranet memory should remain paged in, should call the indirect table rather than using the HLCALL/IXCALL entry points.<br /> <br /> [[Category:Spectranet]]</div>

Winston