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author Joakim Larsson Edström <joakimlarsson42@gmail.com>2015-07-21 02:04:25 +0200
committer Joakim Larsson Edström <joakimlarsson42@gmail.com>2015-07-21 02:04:25 +0200
commit776915947deabc358786fc8f3db1689abc7b6053 (patch)
tree984a261821cb970c4c2bf6cec4cfd5c19d6a2d44 /src/mess/drivers/force68k.c
parent307d82b06acc1e5026938fda0df9cda14a4e863a (diff)
Figured out that ROM:s support a Centronics printer on P2
Diffstat (limited to 'src/mess/drivers/force68k.c')
-rw-r--r--src/mess/drivers/force68k.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/src/mess/drivers/force68k.c b/src/mess/drivers/force68k.c
index 515d54ff82b..7bbf42b6b70 100644
--- a/src/mess/drivers/force68k.c
+++ b/src/mess/drivers/force68k.c
@@ -26,9 +26,9 @@ Address Range Description
OAO 000 - OBF FFF USER EPROMArea
0C0 041 - 0C0 043 ACIA (P3) Host
0C0 080 - 0C0 082 ACIA (P4) Terminal
-0C0 101 - 0C0 103 ACIA (P5) Remote device (eg printer)
+0C0 101 - 0C0 103 ACIA (P5) Remote device (eg serial printer)
0C0 401 - 0C0 42F RTC
-OEO 001 - 0E0 035 PI/T
+OEO 001 - 0E0 035 PI/T (eg centronics printer)
OEO 200 - 0E0 2FF FPU
OEO 300 - 0E0 300 Reset Off
OEO 380 - 0E0 380 Reset On
@@ -78,6 +78,7 @@ SYSFAIL and SYSCLK signal (16 MHz).
TODO:
- Finish 2 x ACIA6850, host and remote interface left, terminal works
- Finish 1 x 68230 Motorola, Parallel Interface / Timer
+ - Connect Port B to a Centronics printer interface
- Add 1 x Abort Switch
- Add configurable serial connector between ACIA:s and
- Real terminal emulator, ie rs232 "socket"
@@ -253,8 +254,8 @@ static MACHINE_CONFIG_START( fccpu1, force68k_state )
/* RTC Real Time Clock device */
MCFG_DEVICE_ADD("rtc", MM58167, XTAL_32_768kHz)
- /* PIT Parallel Interface and Timer device */
- MCFG_DEVICE_ADD("pit", PIT68230, 0)
+ /* PIT Parallel Interface and Timer device, assuming strapped for on board clock */
+ MCFG_DEVICE_ADD("pit", PIT68230, XTAL_16MHz / 2)
MACHINE_CONFIG_END
@@ -312,9 +313,9 @@ ROM_START( fccpu1 )
MM <address> [<data» [;<options» <CR> Memory Modify
MS <address> <data1 > <data2> < ... <CR> Memory Set - starting at addr with data 1. data 2 ...
NOBR [<address> ... ] <CR> Remove Breakpoint
- NOPA <CR> Printer Detach
+ NOPA <CR> Printer Detach (Centronics on PIT/P2)
OF <CR> Offset
- PA <CR> Printer Attach
+ PA <CR> Printer Attach (Centronics on PIT/P2)
PF[n] <CR> Set/display Port Format
RM <CR> Register Modify
TM [<exit character» <CR> Transparent Mode