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Diffstat (limited to 'src/devices/machine/tms1024.cpp')
-rw-r--r--src/devices/machine/tms1024.cpp18
1 files changed, 10 insertions, 8 deletions
diff --git a/src/devices/machine/tms1024.cpp b/src/devices/machine/tms1024.cpp
index 7c509b03c3d..b283c20893c 100644
--- a/src/devices/machine/tms1024.cpp
+++ b/src/devices/machine/tms1024.cpp
@@ -8,14 +8,13 @@
is available for pin-compatible Mitsubishi M50780SP/M50781SP.
Other than more port pins, TMS1025 is assumed to be same as TMS1024.
- TODO:
- - x
-
*/
#include "emu.h"
#include "machine/tms1024.h"
+#define VERBOSE 0
+#include "logmacro.h"
DEFINE_DEVICE_TYPE(TMS1024, tms1024_device, "tms1024", "TMS1024 I/O Expander")
DEFINE_DEVICE_TYPE(TMS1025, tms1025_device, "tms1025", "TMS1025 I/O Expander")
@@ -27,7 +26,7 @@ DEFINE_DEVICE_TYPE(TMS1025, tms1025_device, "tms1025", "TMS1025 I/O Expander")
tms1024_device::tms1024_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock)
: device_t(mconfig, type, tag, owner, clock)
, m_h(0), m_s(0), m_std(0), m_ms(0)
- , m_read_port(*this)
+ , m_read_port(*this, 0)
, m_write_port(*this)
{
}
@@ -50,10 +49,6 @@ tms1025_device::tms1025_device(const machine_config &mconfig, const char *tag, d
void tms1024_device::device_start()
{
- // resolve callbacks (there is no port 0)
- m_read_port.resolve_all_safe(0);
- m_write_port.resolve_all_safe();
-
// register for savestates
save_item(NAME(m_h));
save_item(NAME(m_s));
@@ -79,7 +74,10 @@ u8 tms1024_device::read_h()
{
// read selected port data
if (m_s != 0)
+ {
m_h = (m_read_port[m_s-1])((offs_t)(m_s-1)) & 0xf;
+ LOG("%s: Read %d%d%d%d from P%d\n", machine().describe_context(), BIT(m_h, 3), BIT(m_h, 2), BIT(m_h, 1), BIT(m_h, 0), m_s);
+ }
// high-impedance otherwise
}
@@ -101,11 +99,15 @@ void tms1024_device::write_std(int state)
if (m_ms && !state && m_std)
{
if (m_s != 0)
+ {
+ LOG("%s: Write %d%d%d%d to P%d\n", machine().describe_context(), BIT(m_h, 3), BIT(m_h, 2), BIT(m_h, 1), BIT(m_h, 0), m_s);
(m_write_port[m_s-1])((offs_t)(m_s-1), m_h);
+ }
else
{
// reset all ports
+ LOG("%s: Reset all ports\n", machine().describe_context());
for (int i = PORT1; i <= PORT7; i++)
(m_write_port[i])(offs_t(i), 0);
}