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Minor changes for better debugging (nw)

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This commit is contained in:
Michael Zapf 2013-10-20 15:49:25 +00:00
parent 9d32b2dd74
commit 6787c71769
1 changed files with 7 additions and 4 deletions
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11
src/emu/cpu/tms9900/tms9995.c
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@ -118,7 +118,7 @@ enum
};
#define LOG logerror
#define VERBOSE 5
#define VERBOSE 1
/****************************************************************************
Constructor
@ -1764,6 +1764,7 @@ void tms9995_device::mem_write()
{
m_starting_count_storage_register = m_decrementer_value = m_current_value;
}
if (VERBOSE>2) LOG("tms9995: Setting decrementer to %04x, PC=%04x\n", m_current_value, PC);
pulse_clock(1);
return;
}
@ -1920,6 +1921,7 @@ void tms9995_device::cru_output_operation()
{
m_check_ready = false;
// FLAG2, FLAG3, and FLAG4 are read-only
if (VERBOSE>2) LOG("tms9995: set CRU address %04x to %d\n", m_cru_address, m_cru_value&1);
if ((m_cru_address != 0x1ee4) && (m_cru_address != 0x1ee6) && (m_cru_address != 0x1ee8))
m_flag[(m_cru_address>>1)&0x000f] = (m_cru_value & 0x01);
}
@ -2046,10 +2048,11 @@ void tms9995_device::trigger_decrementer()
m_decrementer_value--;
if (m_decrementer_value==0)
{
if (VERBOSE>5) LOG("tms9995: decrementer reached 0\n");
if (VERBOSE>4) LOG("tms9995: decrementer reached 0\n");
m_decrementer_value = m_starting_count_storage_register;
if (m_flag[1]==true)
{
if (VERBOSE>4) LOG("tms9995: decrementer flags interrupt\n");
m_flag[3] = true;
m_int_decrementer = true;
}
@ -2752,13 +2755,13 @@ void tms9995_device::alu_limi_lwpi()
if (m_instruction->command == LIMI)
{
ST = (ST & 0xfff0) | (m_current_value & 0x000f);
if (VERBOSE>7) LOG("tms9995: ST = %04x\n", ST);
if (VERBOSE>4) LOG("tms9995: LIMI sets ST = %04x\n", ST);
pulse_clock(1); // needs one more than LWPI
}
else
{
WP = m_current_value & 0xfffe;
if (VERBOSE>7) LOG("tms9995: new WP = %04x\n", WP);
if (VERBOSE>4) LOG("tms9995: LWPI sets new WP = %04x\n", WP);
}
}