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(MESS) c64: Triton Quick Disk WIP. (nw)

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This commit is contained in:
Curt Coder 2013-10-18 17:18:14 +00:00
parent 8f6371ccb4
commit 4a5fbe75e6
1 changed files with 60 additions and 21 deletions
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81
src/mess/machine/c64/tdos.c
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@ -48,23 +48,45 @@ ROM - Hitachi HN482764G 8Kx8 EPROM "TDOS 1.2"
ULA - Ferranti ULA5RB073E1 XZ-2085-1 40-pin custom ULA
SSDA - Motorola MC68A52P SSDA
CN1 - C64 expansion connector (pass-thru)
CN2,3 - 19x1 flat ribbon cable to other PCB
CN4 - 9 wires to 3" drive
CN2,3 - 18x1 flat ribbon cable to other PCB
CN4 - 9 wire cable to Mitsumi Quick Disk 3" drive
SW1 - cartridge on/off switch
Flat ribbon cable pinout
------------------------
1 D7
2 D6
3 D5
4 D4
5 D3
6 LS00 4Y -> LS367 _G1
7 phi2
8 LS00 3Y -> LS175 CP
9 D2
10 D1
11 D0
12 RESET
13 A0
14 R/_W
15 GND
16 +5V
17 LS138 O2 -> LS367 _G1
18 LS138 O0 -> SSDA _CS
Drive cable pinout
------------------
1 WP
2 WD
3 WG
4 MO
5 RD
6 RY
7 MS
8 RS
9 +5V
10 GND
1 WP Write Protected
2 WD Write Data
3 WG Write Gate
4 MO Motor
5 RD Read Data
6 RY Ready
7 MS Media Set
8 RS Reset
9 +5V
10 GND
ULA pinout
@ -74,23 +96,40 @@ ULA pinout
2 | | 39
3 | | 38
4 | | 37
5 | | 36
5 | | 36 GND
6 | | 35
RD 7 | | 34
_D5 8 | | 33
RxC 9 | | 32
RxD 10 | | 31
RxD 10 | XZ-2085-1 | 31
11 | | 30
WD 12 | | 29
TxC 13 | | 28
TxD 14 | | 27
D7 15 | | 26
WG 16 | | 25 +5V
17 | | 24
18 | | 23
RS 19 | | 22
17 | | 24 XTAL2
18 | | 23 XTAL1
RS 19 | | 22 GND
20 |_____________| 21
BASIC commands (SYS 32768 to activate)
--------------------------------------
@Dn
@Format
@Dir
@Save
@ASave
@Write
@Load
@Run
@Aload
@Kill
@Quit
@ACopy
@CassCopy
*/
#include "tdos.h"
@ -229,9 +268,9 @@ UINT8 c64_tdos_cartridge_device::c64_cd_r(address_space &space, offs_t offset, U
data = m_roml[offset & 0x1fff];
}
if (m_enabled && !io2)
if (m_enabled && !io2 && sphi2)
{
switch ((offset >> 1) & 0x07)
switch ((offset >> 1) & 0x7f)
{
case 0:
data = m_ssda->read(space, offset & 0x01);
@ -271,9 +310,9 @@ void c64_tdos_cartridge_device::c64_cd_w(address_space &space, offs_t offset, UI
{
m_exp->cd_w(space, offset, data, sphi2, ba, roml, romh, io1, io2);
if (m_enabled && !io2)
if (m_enabled && !io2 && sphi2)
{
switch ((offset >> 1) & 0x07)
switch ((offset >> 1) & 0x7f)
{
case 0:
m_ssda->write(space, offset & 0x01, data);