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Groups > alt.folklore.computers > #159205
| From | "gareth" <no.spam@thank.you.invalid> |
|---|---|
| Newsgroups | alt.folklore.computers |
| Subject | Re: Qbasic |
| Date | 2016-02-12 23:24 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <n9lped$q2p$1@dont-email.me> (permalink) |
| References | (2 earlier) <17c6ebd3-97d2-47f5-b3d9-0caec8ad5fa2@googlegroups.com> <cb6cf76e-290e-4b4d-83c9-d9b5d5eed431@googlegroups.com> <n9kf9l$fni$1@dont-email.me> <n9kgp2$leg$1@dont-email.me> <7Clvy.35645$J36.29178@fx09.iad> |
"Scott Lurndal" <scott@slp53.sl.home> wrote in message news:7Clvy.35645$J36.29178@fx09.iad... Thank-you, something to study and think about. > "gareth" <no.spam@thank.you.invalid> writes: >>"philo" <philo@privacy.net> wrote in message >>news:n9kf9l$fni$1@dont-email.me... >>> >>> The "problem" with Windows is that the 64bit version , though it can run >>> 32 bit apps, cannot run 16 bit apps. >> >>Do the 64-bit processors still boot into 16-bit mode, though? > > They still boot in real-mode. Then the OS switches to protected > mode. Then the OS switches on paging. Then the OS switches to > "long mode". Between each step, various initialization functions > take place (GDT/LDT/IDT, enable the A20 gate, flush kbd controller, etc) > > # jmp enable_longmode,[SS_CODE32] (Invoke address using GDT entry > #2) > .byte 0x66 # code32 override > .byte 0xea # jmpi instruction > .long enable_longmode # Address to invoke > .word SS_CODE32 # GDT[2] > > enable_longmode: > movl $SS_DATA, %eax > movl %eax, %ds > movl %eax, %es > movl %eax, %fs > movl %eax, %gs > > # Set up the protected mode stack pointer > > lss stack_segdesc, %esp # Load SS:ESP > movl cs_realmode, %eax # Get CS address > > # Set up cr3 with PML4 base before paging is enabled > > leal identitypml4, %eax # Get PML4 base address > subl $identitypdp, %eax > addl $0xa000, %eax # Bump to real base > movl %eax, %cr3 > > movl %cr4, %eax # Get CR4 > orl $PAE_BIT, %eax # Set PAE for long mode > movl %eax, %cr4 # Set CR4 > > # Enable long mode > movl $0xC0000080, %ecx # EFER address > rdmsr # Read EFER Register into EAX > orl $LME_BIT, %eax # Enable long mode > wrmsr # Set EFER > > # Enable paging to activate long mode > movl %cr0, %eax # Get CR0 > mov $0x80050033,%eax > movl %eax, %cr0 # Set CR0 > jmp 1f # Clear pipeline > > > 1: > movl memsize, %eax # Amount of e820 buf space remaining > movzwl ap_start, %ebx # BSP or AP flag > movl cs_realmode, %esi # Real-mode base address > > # Here, we are still in the compatibility > # mode. A far jump is needed to actually activate the 64bit mode. > > # jmp 0x10000,[SS_CODE64] (Invoke address using GDT entry #2) > > .byte 0xea # jmpi instruction > .long DVMM_START # Address to invoke, dvmmstart is based at DVMM_START > .word SS_CODE64 # GDT[2] > > > lea bummer, %si > call print > 9: hlt > jmp 9b > > bummer: > .string "Fell through jump to C++ code - halting\r\n"
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Qbasic philo <philo@privacy.net> - 2016-02-05 11:25 -0600
Re: Qbasic Gene Wirchenko <genew@telus.net> - 2016-02-05 14:56 -0800
Re: Qbasic philo <philo@privacy.net> - 2016-02-05 18:13 -0600
Re: Qbasic Michael Black <et472@ncf.ca> - 2016-02-05 22:40 -0500
Re: Qbasic philo <philo@privacy.net> - 2016-02-05 22:32 -0600
Re: Qbasic "Gene Buckle" <gene.buckle@bbs.retroarchive.org.remove-3hg-this> - 2016-02-11 10:22 -0800
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-11 17:16 -0800
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-11 18:49 -0800
Re: Qbasic philo <philo@privacy.net> - 2016-02-12 05:25 -0600
Re: Qbasic "gareth" <no.spam@thank.you.invalid> - 2016-02-12 11:50 +0000
Re: Qbasic scott@slp53.sl.home (Scott Lurndal) - 2016-02-12 14:02 +0000
Re: Qbasic "gareth" <no.spam@thank.you.invalid> - 2016-02-12 23:24 +0000
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-12 09:50 -0800
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-12 06:53 -0500
Re: Qbasic jmfbahciv <See.above@aol.com> - 2016-02-12 13:40 +0000
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-12 09:53 -0800
Re: Qbasic jmfbahciv <See.above@aol.com> - 2016-02-13 14:37 +0000
Re: Qbasic scott@slp53.sl.home (Scott Lurndal) - 2016-02-12 14:04 +0000
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-12 09:55 -0800
Re: Qbasic Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-02-12 20:49 +0000
Re: Qbasic Bob Eager <news0006@eager.cx> - 2016-02-12 23:21 +0000
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-12 15:55 -0800
Re: Qbasic Bob Eager <news0006@eager.cx> - 2016-02-13 00:26 +0000
Re: Qbasic scott@slp53.sl.home (Scott Lurndal) - 2016-02-16 15:55 +0000
Re: Qbasic scott@slp53.sl.home (Scott Lurndal) - 2016-02-12 21:09 +0000
Re: Qbasic Stephen Sprunk <stephen@sprunk.org> - 2016-02-12 17:11 -0600
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-12 23:27 -0800
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-13 06:26 -0500
Re: Qbasic scott@slp53.sl.home (Scott Lurndal) - 2016-02-16 15:54 +0000
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-17 11:34 -0800
Re: Qbasic scott@slp53.sl.home (Scott Lurndal) - 2016-02-17 19:56 +0000
Re: Qbasic Anne & Lynn Wheeler <lynn@garlic.com> - 2016-02-17 12:48 -0800
Re: Qbasic Stephen Sprunk <stephen@sprunk.org> - 2016-02-17 18:52 -0600
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-17 19:23 -0800
Re: Qbasic "Charles Richmond" <numerist@aquaporin4.com> - 2016-02-18 12:00 -0600
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-18 15:02 -0800
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-18 20:36 -0500
Re: Qbasic Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-02-19 04:14 +0000
Re: Qbasic "Charles Richmond" <numerist@aquaporin4.com> - 2016-02-19 20:05 -0600
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-19 21:34 -0500
Re: Qbasic "Osmium" <r124c4u102@comcast.net> - 2016-02-20 08:03 -0600
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-20 11:09 -0500
Re: Qbasic JimP <solosam90@gmail.com> - 2016-02-20 10:39 -0600
Re: Qbasic "Osmium" <r124c4u102@comcast.net> - 2016-02-20 12:05 -0600
Re: Qbasic Dave Garland <dave.garland@wizinfo.com> - 2016-02-20 13:47 -0600
Re: Qbasic "Osmium" <r124c4u102@comcast.net> - 2016-02-20 14:21 -0600
Re: Qbasic Dave Garland <dave.garland@wizinfo.com> - 2016-02-20 18:06 -0600
Re: Qbasic Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-02-20 18:57 +0000
Re: Qbasic Dave Garland <dave.garland@wizinfo.com> - 2016-02-20 14:02 -0600
Re: Qbasic Mike Spencer <mds@bogus.nodomain.nowhere> - 2016-02-20 16:51 -0400
Re: Qbasic Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-02-18 21:34 +0000
Re: Qbasic Andrew Swallow <am.swallow@btinternet.com> - 2016-02-18 06:25 +0000
Re: Qbasic scott@slp53.sl.home (Scott Lurndal) - 2016-02-18 14:17 +0000
Re: Qbasic Stephen Sprunk <stephen@sprunk.org> - 2016-02-18 11:33 -0600
Re: Qbasic scott@slp53.sl.home (Scott Lurndal) - 2016-02-18 17:41 +0000
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-18 14:54 -0800
Re: Qbasic Peter Flass <peter_flass@yahoo.com> - 2016-02-17 18:41 -0700
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-18 20:14 -0500
Re: Qbasic Stephen Sprunk <stephen@sprunk.org> - 2016-02-18 20:54 -0600
Re: Qbasic "gareth" <no.spam@thank.you.invalid> - 2016-02-19 11:44 +0000
Re: Qbasic Stephen Sprunk <stephen@sprunk.org> - 2016-02-13 12:24 -0600
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-12 23:26 -0800
Re: Qbasic Peter Flass <peter_flass@yahoo.com> - 2016-02-13 07:43 -0700
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-13 10:29 -0500
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-13 08:20 -0800
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-13 09:21 -0800
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-13 12:44 -0500
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-13 11:31 -0800
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-13 15:52 -0500
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-13 13:02 -0800
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-13 16:58 -0500
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-13 20:24 -0800
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-13 21:39 -0800
Re: Qbasic Peter Flass <peter_flass@yahoo.com> - 2016-02-14 08:48 -0700
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-13 14:17 -0800
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-13 20:00 -0500
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-13 17:52 -0800
Re: Qbasic Anne & Lynn Wheeler <lynn@garlic.com> - 2016-02-13 19:28 -0800
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-13 21:32 -0800
Re: Qbasic David Wade <dave.g4ugm@gmail.com> - 2016-02-14 14:59 +0000
Re: Qbasic Peter Flass <peter_flass@yahoo.com> - 2016-02-14 08:48 -0700
Re: Qbasic Anne & Lynn Wheeler <lynn@garlic.com> - 2016-02-14 10:15 -0800
Re: Qbasic Anne & Lynn Wheeler <lynn@garlic.com> - 2016-02-14 09:48 -0800
Re: Qbasic Anne & Lynn Wheeler <lynn@garlic.com> - 2016-02-14 12:01 -0800
Re: Qbasic Peter Flass <peter_flass@yahoo.com> - 2016-02-14 08:48 -0700
Re: Qbasic Dan Espen <despen@verizon.net> - 2016-02-14 19:36 -0500
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-13 20:35 -0800
Re: Qbasic Dan Espen <despen@verizon.net> - 2016-02-14 10:15 -0500
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-14 08:20 -0800
Re: Qbasic Stephen Sprunk <stephen@sprunk.org> - 2016-02-14 14:31 -0600
Re: Qbasic Dan Espen <despen@verizon.net> - 2016-02-14 19:33 -0500
Re: Qbasic Peter Flass <peter_flass@yahoo.com> - 2016-02-16 18:52 -0700
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-13 14:04 -0800
Re: Qbasic Morten Reistad <first@last.name,invalid> - 2016-02-13 23:18 +0100
Re: Qbasic "Osmium" <r124c4u102@comcast.net> - 2016-02-13 17:25 -0600
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-13 19:42 -0500
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-13 20:30 -0800
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-13 21:49 -0800
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-14 06:36 -0800
Re: Qbasic Peter Flass <peter_flass@yahoo.com> - 2016-02-14 08:48 -0700
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-14 08:23 -0800
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-14 08:27 -0800
Re: Qbasic Peter Flass <peter_flass@yahoo.com> - 2016-02-16 18:52 -0700
Re: Qbasic Peter Flass <peter_flass@yahoo.com> - 2016-02-14 08:48 -0700
Re: Qbasic Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-02-15 21:27 +0000
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-15 14:30 -0800
Re: Qbasic Dan Espen <despen@verizon.net> - 2016-02-15 23:38 -0500
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-17 11:23 -0800
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-15 20:49 -0800
Re: Qbasic Andrew Swallow <am.swallow@btinternet.com> - 2016-02-16 07:07 +0000
Re: Qbasic Morten Reistad <first@last.name.invalid> - 2016-02-16 10:33 +0100
Re: Qbasic jmfbahciv <See.above@aol.com> - 2016-02-16 13:43 +0000
Re: Qbasic Morten Reistad <first@last.name.invalid> - 2016-02-16 15:21 +0100
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-17 11:30 -0800
Re: Qbasic scott@slp53.sl.home (Scott Lurndal) - 2016-02-17 19:49 +0000
Re: Qbasic jmfbahciv <See.above@aol.com> - 2016-02-18 13:58 +0000
Re: Qbasic Morten Reistad <first@last.name.invalid> - 2016-02-18 16:53 +0100
Re: Qbasic jmfbahciv <See.above@aol.com> - 2016-02-19 14:24 +0000
Re: Qbasic "Rod Speed" <rod.speed.aaa@gmail.com> - 2016-02-20 05:09 +1100
Re: Qbasic jmfbahciv <See.above@aol.com> - 2016-02-20 15:18 +0000
Re: Qbasic "Rod Speed" <rod.speed.aaa@gmail.com> - 2016-02-21 03:30 +1100
Re: Qbasic Morten Reistad <first@last.name.invalid> - 2016-02-20 19:06 +0100
Re: Qbasic "Rod Speed" <rod.speed.aaa@gmail.com> - 2016-02-21 05:55 +1100
Re: Qbasic Morten Reistad <first@last.name.invalid> - 2016-02-20 21:42 +0100
Re: Qbasic "Rod Speed" <rod.speed.aaa@gmail.com> - 2016-02-21 12:05 +1100
Re: Qbasic Stephen Sprunk <stephen@sprunk.org> - 2016-02-20 16:24 -0600
Re: Qbasic Anonymous <no_email@invalid.invalid> - 2016-02-21 00:26 +0000
Re: Qbasic Peter Flass <peter_flass@yahoo.com> - 2016-02-19 11:15 -0700
Re: Qbasic jmfbahciv <See.above@aol.com> - 2016-02-20 15:18 +0000
Re: Qbasic "hgww" <hgww@gmail.com> - 2016-02-21 03:43 +1100
Re: Qbasic scott@slp53.sl.home (Scott Lurndal) - 2016-02-19 18:36 +0000
Re: Qbasic jmfbahciv <See.above@aol.com> - 2016-02-20 15:18 +0000
Re: Qbasic "Rod Speed" <rod.speed.aaa@gmail.com> - 2016-02-21 03:31 +1100
Re: Qbasic Morten Reistad <first@last.name.invalid> - 2016-02-20 19:13 +0100
Re: Qbasic "Rod Speed" <rod.speed.aaa@gmail.com> - 2016-02-21 06:00 +1100
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-16 10:10 -0800
Re: Qbasic scott@slp53.sl.home (Scott Lurndal) - 2016-02-16 18:32 +0000
Re: Qbasic Andrew Swallow <am.swallow@btinternet.com> - 2016-02-16 21:08 +0000
Re: Qbasic Stan Barr <plan.b@bluesomatic.org> - 2016-02-16 08:20 +0000
Re: Qbasic Peter Flass <peter_flass@yahoo.com> - 2016-02-16 18:52 -0700
Re: Qbasic Lawrence Statton <lawrence@senguio.mx> - 2016-02-16 20:30 -0600
Re: Qbasic Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-02-17 04:17 +0000
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-17 11:25 -0800
Re: Qbasic Morten Reistad <first@last.name.invalid> - 2016-02-13 17:25 +0100
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-13 11:34 -0800
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-13 16:47 -0500
Re: Qbasic Andrew Swallow <am.swallow@btinternet.com> - 2016-02-14 04:09 +0000
Re: Qbasic Peter Flass <peter_flass@yahoo.com> - 2016-02-14 08:48 -0700
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-14 12:12 -0500
Re: Qbasic Dan Espen <despen@verizon.net> - 2016-02-14 19:39 -0500
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-14 19:55 -0500
Re: Qbasic Dan Espen <despen@verizon.net> - 2016-02-14 20:08 -0500
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-14 20:41 -0800
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-15 12:06 -0500
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-15 09:21 -0800
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-15 09:29 -0800
Re: Qbasic Andrew Swallow <am.swallow@btinternet.com> - 2016-02-15 21:22 +0000
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-15 13:39 -0500
Re: Qbasic Andrew Swallow <am.swallow@btinternet.com> - 2016-02-15 21:20 +0000
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-13 09:18 -0800
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-13 13:07 -0500
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-13 10:48 -0800
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-13 15:49 -0500
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-13 14:09 -0800
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-13 19:56 -0500
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-13 17:43 -0800
Re: Qbasic Andrew Swallow <am.swallow@btinternet.com> - 2016-02-14 04:16 +0000
Re: Qbasic Morten Reistad <first@last.name.invalid> - 2016-02-13 23:35 +0100
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-13 20:08 -0500
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-13 17:55 -0800
Re: Qbasic Andrew Swallow <am.swallow@btinternet.com> - 2016-02-14 04:14 +0000
Re: Qbasic Peter Flass <peter_flass@yahoo.com> - 2016-02-14 08:48 -0700
Re: Qbasic Morten Reistad <first@last.name.invalid> - 2016-02-13 16:13 +0100
Re: Qbasic "Blanco" <rko4410@gmail.com> - 2016-02-14 04:44 +1100
Re: Qbasic Morten Reistad <first@last.name.invalid> - 2016-02-13 23:30 +0100
Re: Qbasic "Blanco" <rko4410@gmail.com> - 2016-02-14 13:27 +1100
Re: Qbasic Stephen Sprunk <stephen@sprunk.org> - 2016-02-14 13:43 -0600
Re: Qbasic "hgww" <hgww@gmail.com> - 2016-02-15 07:31 +1100
Re: Qbasic pechter@pechter.dyndns.org (William Pechter) - 2016-02-12 17:38 +0000
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-12 19:33 -0500
Re: Qbasic Quadibloc <jsavard@ecn.ab.ca> - 2016-02-12 09:51 -0800
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-12 19:24 -0500
Re: Qbasic jmfbahciv <See.above@aol.com> - 2016-02-13 14:37 +0000
Re: Qbasic "J. Clarke" <j.clarke.873638@gmail.com> - 2016-02-13 10:24 -0500
Re: Qbasic hancock4@bbs.cpcn.com - 2016-02-12 23:20 -0800
Re: Qbasic "gareth" <no.spam@thank.you.invalid> - 2016-02-13 11:09 +0000
Re: Qbasic Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-02-14 00:53 +0000
Re: Qbasic Roberto Waltman <usenet@rwaltman.com> - 2016-02-15 23:30 -0500
Re: Qbasic scott@slp53.sl.home (Scott Lurndal) - 2016-02-16 15:56 +0000
Re: Qbasic Ahem A Rivet's Shot <steveo@eircom.net> - 2016-02-13 11:33 +0000
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