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Diffstat (limited to 'src/emu/machine/7200fifo.c')
-rw-r--r--src/emu/machine/7200fifo.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/src/emu/machine/7200fifo.c b/src/emu/machine/7200fifo.c
index da998e575ac..6913479d4fc 100644
--- a/src/emu/machine/7200fifo.c
+++ b/src/emu/machine/7200fifo.c
@@ -41,7 +41,7 @@ void fifo7200_device::device_start()
m_ef_handler.resolve();
m_ff_handler.resolve();
m_hf_handler.resolve();
-
+
// state save
save_item(NAME(m_read_ptr));
save_item(NAME(m_write_ptr));
@@ -60,11 +60,11 @@ void fifo7200_device::device_reset()
memset(m_buffer, 0, m_ram_size * sizeof(UINT16));
m_read_ptr = 0;
m_write_ptr = 0;
-
+
m_ef = 1;
m_ff = 0;
m_hf = 0;
-
+
if (!m_ef_handler.isnull()) m_ef_handler(m_ef);
if (!m_ff_handler.isnull()) m_ff_handler(m_ff);
if (!m_hf_handler.isnull()) m_hf_handler(m_hf);
@@ -82,7 +82,7 @@ void fifo7200_device::fifo_write(UINT16 data)
m_buffer[m_write_ptr] = data & 0x1ff;
m_write_ptr = (m_write_ptr + 1) % m_ram_size;
-
+
// update flags
if (m_ef)
{
@@ -110,7 +110,7 @@ UINT16 fifo7200_device::fifo_read()
logerror("IDT7200 %s fifo_read underflow!\n", tag());
return 0x1ff;
}
-
+
UINT16 ret = m_buffer[m_read_ptr];
m_read_ptr = (m_read_ptr + 1) % m_ram_size;
@@ -126,12 +126,12 @@ UINT16 fifo7200_device::fifo_read()
m_ef = 1;
if (!m_ef_handler.isnull()) m_ef_handler(m_ef);
}
-
+
else if (((m_read_ptr + m_ram_size / 2) % m_ram_size) == m_write_ptr)
{
m_hf = 0;
if (!m_hf_handler.isnull()) m_hf_handler(m_hf);
}
-
+
return ret;
}