summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/cpu/mcs48/mcs48.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/cpu/mcs48/mcs48.cpp')
-rw-r--r--src/devices/cpu/mcs48/mcs48.cpp12
1 files changed, 6 insertions, 6 deletions
diff --git a/src/devices/cpu/mcs48/mcs48.cpp b/src/devices/cpu/mcs48/mcs48.cpp
index eba06d7a156..dfe68df8b4c 100644
--- a/src/devices/cpu/mcs48/mcs48.cpp
+++ b/src/devices/cpu/mcs48/mcs48.cpp
@@ -8,12 +8,12 @@
- T0 output clock
- get rid of i/o addressmap, use devcb for mcu pins
- add CMOS devices, 1 new opcode (01 HALT)
- - make timer update cleaner:
- timer is updated on S4 while I/O happens on S5
- due to very bad coding, Kaypro 10 keyboard depends on being able to see T=0 before interrupt is taken
- right now this is implemented with a hack in the mov_a_t handler
- in theory it should also be possible to see the timer flag before the interrupt is taken
- mov_t_a should also update the T register after it's incremented
+ - make timer update cleaner:
+ timer is updated on S4 while I/O happens on S5
+ due to very bad coding, Kaypro 10 keyboard depends on being able to see T=0 before interrupt is taken
+ right now this is implemented with a hack in the mov_a_t handler
+ in theory it should also be possible to see the timer flag before the interrupt is taken
+ mov_t_a should also update the T register after it's incremented
*/
/***************************************************************************