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am9513: Improved mode logging (nw)

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This commit is contained in:
AJR 2017-09-23 17:26:56 -04:00
parent 64291e4b59
commit 75c06585e7
1 changed files with 34 additions and 8 deletions
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42
src/devices/machine/am9513.cpp
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@ -380,18 +380,44 @@ void am9513_device::set_counter_mode(int c, u16 data)
{
if ((data & 0xe0e0) != (m_counter_mode[c] & 0xe0e0))
{
// Mode selection and gating control
// CM15-CM13, CM7-CM5: Mode selection and gating control
int mode = ((data >> 5) & 7) * 3;
if ((data & 0xc000) == 0xc000)
mode += 2; // Edge gating
else if ((data & 0xe000) != 0)
mode += 1; // Level gating
LOGMASKED(LOG_MODE, "Counter %d: Mode %c selected\n", c + 1, mode + 'A');
switch (data & 0xe000)
{
case 0x0000:
mode += 'A';
LOGMASKED(LOG_MODE, "Counter %d: Mode %c selected (no gating)\n", c + 1, mode);
break;
case 0x2000:
mode += 'B';
LOGMASKED(LOG_MODE, "Counter %d: Mode %c selected (active high TC%d)\n", c + 1, mode, c);
break;
case 0x4000:
case 0x6000:
mode += 'B';
LOGMASKED(LOG_MODE, "Counter %d: Mode %c selected (active high GATE %d)\n", c + 1, mode, BIT(data, 13) ? c + 2 : c);
break;
case 0x8000:
case 0xa000:
mode += 'B';
LOGMASKED(LOG_MODE, "Counter %d: Mode %c selected (active %s GATE %d)\n", c + 1, mode, BIT(data, 13) ? "low" : "high", c + 1);
break;
case 0xc000:
case 0xe000:
mode += 'C';
LOGMASKED(LOG_MODE, "Counter %d: Mode %c selected (%s edge GATE %d)\n", c + 1, mode, BIT(data, 13) ? "falling" : "rising", c + 1);
break;
}
}
if ((data & 0x1f00) != (m_counter_mode[c] & 0x1f00))
{
// Source selection and edge control
// CM11-CM8: Source selection
// CM12: Source edge control
int source = (data >> 8) & 15;
int old_source = (m_counter_mode[c] >> 8) & 15;
if (old_source >= 11 && old_source <= 15 && source != old_source)
@ -412,9 +438,9 @@ void am9513_device::set_counter_mode(int c, u16 data)
if ((data & 0x0018) != (m_counter_mode[c] & 0x0018))
LOGMASKED(LOG_MODE, "Counter %d: %s %s count\n", c + 1, BIT(data, 4) ? "BCD" : "Binary", BIT(data, 3) ? "up" : "down");
// Output forms
if ((data & 0x0007) != (m_counter_mode[c] & 0x0007))
{
// CM2-CM0: Output form
switch (data & 0x0007)
{
case 0x0000: