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(MESS) concept: signal tc_w at end of fdc02 pseudo-DMA, but 765 still won't cooperate (nw)

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This commit is contained in:
R. Belmont 2014-10-02 01:51:46 +00:00
parent 1ee7c41651
commit 98adcd4883
1 changed files with 8 additions and 1 deletions
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9
src/emu/bus/a2bus/corvfdc02.c
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@ -269,8 +269,15 @@ WRITE_LINE_MEMBER(a2bus_corvfdc02_device::drq_w)
// pseudo-DMA direction?
if (m_fdc_local_command & 0x40)
{
m_buffer[m_bufptr] = m_fdc->dma_r();
m_buffer[m_bufptr] = m_fdc->dma_r();
// printf("DMA %02x to buffer[%x]\n", m_buffer[m_bufptr], m_bufptr);
if (!m_bufptr)
{
m_fdc->tc_w(true);
m_fdc->tc_w(false);
}
m_bufptr--;
m_bufptr &= 0x1ff;
}