https://wikiti.brandonw.net/index.php?action=history&feed=atom&title=83Plus%3ABCALLs%3A4045 2026-04-23T03:37:26Z Revision history for this page on the wiki MediaWiki 1.23.5 https://wikiti.brandonw.net/index.php?title=83Plus:BCALLs:4045&diff=3558&oldid=prev 2005-04-09T05:53:38Z

<p></p> <p><b>New page</b></p><div>[[Category:83Plus:BCALLs:By Name:Utility|callMain]] [[Category:83Plus:BCALLs:By Name|callMain]] [[Category:83Plus:BCALLs:By Address|4045 - callMain]]<br /> == Synopsis ==<br /> '''Official Name:''' callMain<br /> <br /> '''BCALL Address:''' 4045<br /> <br /> Calls the cxMain vector.<br /> <br /> === Inputs ===<br /> Typically the OS expects the following inputs:<br /> * a = key to send to cxMain<br /> * ([[83Plus:RAM:8446|keyExtend]]) = second byte of key press, if it exists<br /> <br /> === Outputs ===<br /> * This varies depending on the routine in use.<br /> <br /> === Registers Destroyed ===<br /> * HL is preserved. All other registers depend on the current CxMain routine in use.<br /> <br /> === Comments ===<br /> This BCALL calls the routine on page ([[83Plus:RAM:8599|CxPage]]), at address ([[83Plus:RAM:858D|CxMain]]). When starting an app normally, the default is usually a dummy return. The OS sends key presses to this routine for proper handling.</div>

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