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Groups > comp.sys.apple2.programmer > #1228
| From | D. Finnigan <dog_cow@macgui.com> |
|---|---|
| Newsgroups | comp.sys.apple2.programmer |
| Subject | Multitasking Mouse Draw Demo v1.2 Changes |
| Date | 2014-06-10 00:53 +0000 |
| Organization | bbs-scene usenet news |
| Message-ID | <multitasking-mouse-draw-demo-changes-v1.2-06jun14@macgui.com> (permalink) |
| References | <multitasking-mouse-draw-demo-v1.2-06jun14@macgui.com> |
Changes to system since version 1.1: - Parent Process ID table - Process status table - Process exit status table - CREATEALL renamed SYSINIT - NEWPROC records process creation hierarchy: parent and child - New WAIT system call allows a parent to collect the exit status of a child process - New EXIT system call allows a process to terminate and return status to parent - New WAKEUP system call allows a process to terminate a process's sleep status Changes to processes since version 1.1: - There are now 5 total processes - New process 4 is called as a child process to clear white blocks - Process 0 spawns process 4 and waits for it to terminate - Process 0 prints the process ID and exit status of its child process "The entire world is changing around them, and yet these user-land programs are completely unfazed." Most of the work for version 1.2 was completed around the first few days of March. Then I took a break from it until June.
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Multitasking Mouse Draw Demo v1.2 D. Finnigan <dog_cow@macgui.com> - 2014-06-10 00:52 +0000
Multitasking Mouse Draw Demo v1.2 Changes D. Finnigan <dog_cow@macgui.com> - 2014-06-10 00:53 +0000
Re: Multitasking Mouse Draw Demo v1.2 Changes D Finnigan <dog_cow@macgui.com> - 2014-06-10 20:07 +0000
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