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wd_fdc.cpp: Add optional logging for data reads and writes

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This commit is contained in:
AJR 2023-08-31 14:04:53 -04:00
parent 3d0cf668f6
commit da8dba05ba
1 changed files with 6 additions and 4 deletions
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10
src/devices/machine/wd_fdc.cpp
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@ -5,9 +5,7 @@
#include "imagedev/floppy.h"
#include "debugger.h"
#define LOG_SETUP (1U << 1) // Shows register setup
#define LOG_DATA (1U << 1) // Shows data reads and writes
#define LOG_SHIFT (1U << 2) // Shows shift register contents
#define LOG_COMP (1U << 3) // Shows operations on the CPU side
#define LOG_COMMAND (1U << 4) // Shows command invocation
@ -29,7 +27,7 @@
#include "logmacro.h"
#define LOGSETUP(...) LOGMASKED(LOG_SETUP, __VA_ARGS__)
#define LOGDATA(...) LOGMASKED(LOG_DATA, __VA_ARGS__)
#define LOGSHIFT(...) LOGMASKED(LOG_SHIFT, __VA_ARGS__)
#define LOGCOMP(...) LOGMASKED(LOG_COMP, __VA_ARGS__)
#define LOGCOMMAND(...) LOGMASKED(LOG_COMMAND, __VA_ARGS__)
@ -1396,13 +1394,17 @@ void wd_fdc_device_base::data_w(uint8_t val)
if (!mr) return;
data = val ^ bus_invert_value;
LOGDATA("%s: Write %02X to data register (DRQ=%d)\n", machine().describe_context(), data, drq);
drop_drq();
}
uint8_t wd_fdc_device_base::data_r()
{
if (!machine().side_effects_disabled())
{
LOGDATA("%s: Read %02X from data register (DRQ=%d)\n", machine().describe_context(), data, drq);
drop_drq();
}
return data ^ bus_invert_value;
}