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simh-testsetgenerator/AltairZ80
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Mike Douglas f3af74e444 AltairZ80: Fix head stepping to only occur on 1 to 0 transitions 
The source file to be updated provides emulation of the North Star DD
floppy disk controller. The proposed change steps the head only when the
step bit in the order byte transitions from 1 to 0. This is the way the
actual hardware functions. Previously, the emulation would step any time
an order was issued and the step bit was 1. This behavior caused some
original software (e.g., Lifeboat CP/M 2.2) to end up on an incorrect
track.
2015-08-08 21:27:09 -05:00
..
altairz80_cpu.c AltairZ80: Better comparison operator to remove warning message 2015-08-08 08:58:24 +02:00
altairz80_cpu_nommu.c AltairZ80: Reduced polling for CPU stop on non UNIX platforms 2015-04-26 09:50:00 +02:00
altairz80_defs.h AltairZ80: Added Motorola 68000 CPU support for CP/M-68K, support for Altair mini-disk format, added descriptions for all device registers 2014-05-27 20:01:30 +02:00
altairz80_doc.pdf AltairZ80: Added Motorola 68000 CPU support for CP/M-68K, support for Altair mini-disk format, added descriptions for all device registers 2014-05-27 20:01:30 +02:00
altairz80_dsk.c ALPHA, ALTAIR, AltairZ80, I7094, NOVA, PDP1, PDP10, PDP11, PDP18B, PDP8, SAGE, sigma, swtp6800, TX-0, VAX: Change tabs to spaces which had crept in over time 2015-03-30 10:24:24 -07:00
altairz80_hdsk.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
altairz80_mhdsk.c AltairZ80: Added Motorola 68000 CPU support for CP/M-68K, support for Altair mini-disk format, added descriptions for all device registers 2014-05-27 20:01:30 +02:00
altairz80_net.c Compiler suggested cleanup 2015-02-11 12:25:11 -08:00
altairz80_sio.c AltairZ80: Fixed keyboard polling on non UNIX platform and daylight savings time issue with CP/M 3 clock 2015-04-25 08:31:05 +02:00
altairz80_sys.c SCP: Added the capability for EXAMINE command output to be written directly to a socket. 2015-02-21 12:40:36 -08:00
disasm.c Notes For V3.8 2011-04-15 08:35:54 -07:00
flashwriter2.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
i86.h Notes For V3.8 2011-04-15 08:35:43 -07:00
i86_decode.c AltairZ80: Reduced polling for CPU stop on non UNIX platforms 2015-04-26 09:50:00 +02:00
i86_ops.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
i86_prim_ops.c AltairZ80: Removed unnecessary calls to abs() 2014-10-28 18:53:12 +01:00
i8272.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
i8272.h Notes For V3.8 2011-04-15 08:35:54 -07:00
insns.h Notes For V3.8 2011-04-15 08:35:54 -07:00
insnsd.c Notes For V3.8 2011-04-15 08:35:54 -07:00
m68k.h AltairZ80: Added Motorola 68000 CPU support for CP/M-68K, support for Altair mini-disk format, added descriptions for all device registers 2014-05-27 20:01:30 +02:00
m68kconf.h AltairZ80: Added Motorola 68000 CPU support for CP/M-68K, support for Altair mini-disk format, added descriptions for all device registers 2014-05-27 20:01:30 +02:00
m68kcpu.c AltairZ80: Added Motorola 68000 CPU support for CP/M-68K, support for Altair mini-disk format, added descriptions for all device registers 2014-05-27 20:01:30 +02:00
m68kcpu.h AltairZ80: Added Motorola 68000 CPU support for CP/M-68K, support for Altair mini-disk format, added descriptions for all device registers 2014-05-27 20:01:30 +02:00
m68kdasm.c AltairZ80: Added Motorola 68000 CPU support for CP/M-68K, support for Altair mini-disk format, added descriptions for all device registers 2014-05-27 20:01:30 +02:00
m68kopac.c ALPHA, ALTAIR, AltairZ80, I7094, NOVA, PDP1, PDP10, PDP11, PDP18B, PDP8, SAGE, sigma, swtp6800, TX-0, VAX: Change tabs to spaces which had crept in over time 2015-03-30 10:24:24 -07:00
m68kopdm.c ALPHA, ALTAIR, AltairZ80, I7094, NOVA, PDP1, PDP10, PDP11, PDP18B, PDP8, SAGE, sigma, swtp6800, TX-0, VAX: Change tabs to spaces which had crept in over time 2015-03-30 10:24:24 -07:00
m68kopnz.c ALPHA, ALTAIR, AltairZ80, I7094, NOVA, PDP1, PDP10, PDP11, PDP18B, PDP8, SAGE, sigma, swtp6800, TX-0, VAX: Change tabs to spaces which had crept in over time 2015-03-30 10:24:24 -07:00
m68kops.c AltairZ80: Added Motorola 68000 CPU support for CP/M-68K, support for Altair mini-disk format, added descriptions for all device registers 2014-05-27 20:01:30 +02:00
m68kops.h AltairZ80: Added Motorola 68000 CPU support for CP/M-68K, support for Altair mini-disk format, added descriptions for all device registers 2014-05-27 20:01:30 +02:00
m68ksim.c AltairZ80: Reduced polling for CPU stop on non UNIX platforms 2015-04-26 09:50:00 +02:00
m68ksim.h AltairZ80: Addressed Microsoft compiler generated warnings 2014-05-29 18:12:18 +02:00
mfdc.c AltairZ80: mfdc: Only display ROM write attempt error messages when debug is enabled 2015-03-21 13:33:59 -07:00
mfdc.h Notes For V3.8 2011-04-15 08:35:43 -07:00
n8vem.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
nasm.h Notes For V3.8 2011-04-15 08:35:54 -07:00
s100_64fdc.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
s100_adcs6.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
s100_disk1a.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
s100_disk2.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
s100_disk3.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
s100_fif.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
s100_hdc1001.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
s100_if3.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
s100_mdriveh.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
s100_mdsad.c AltairZ80: Fix head stepping to only occur on 1 to 0 transitions 2015-08-08 21:27:09 -05:00
s100_scp300f.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
s100_selchan.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
s100_ss1.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
vfdhd.c AltairZ80: Fixed confusing call to memset 2014-11-12 19:06:24 +01:00
vfdhd.h Notes For V3.8 2011-04-15 08:35:43 -07:00
wd179x.c Replaced printf with sim_printf. 2014-10-24 23:10:54 +02:00
wd179x.h Notes For V3.8 2011-04-15 08:35:43 -07:00