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upd7220: don't run wdat if figd figure type is set and set the patter… (#8470)

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* upd7220: don't run wdat if figd figure type is set, set the pattern in wdat and reset figure type
This commit is contained in:
cracyc 2021-08-24 08:49:00 -05:00 committed by GitHub
parent 65eeeb8d04
commit 01106becc6
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 30 additions and 1 deletions
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31
src/devices/video/upd7220.cpp
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@ -426,6 +426,7 @@ inline void upd7220_device::reset_figs_param()
m_figs.m_d2 = 0x0008;
m_figs.m_dm = 0xffff;
m_figs.m_gd = 0;
m_figs.m_figure_type = 0;
}
@ -1301,6 +1302,10 @@ void upd7220_device::process_fifo()
{
LOG("uPD7220 RA%u: %02x\n", m_ra_addr, data);
if (m_ra_addr == 8)
m_pattern = (m_pattern & 0xff00) | data;
else if (m_ra_addr == 9)
m_pattern = (m_pattern & 0xff) | (data << 8);
m_ra[m_ra_addr] = data;
m_ra_addr++;
}
@ -1323,6 +1328,12 @@ void upd7220_device::process_fifo()
if (m_param_ptr == 3 || (m_param_ptr == 2 && m_cr & 0x10))
{
m_pattern = (m_pattern & 0xff00) | m_pr[1];
if (m_param_ptr == 3)
m_pattern = (m_pattern & 0xff) | (m_pr[2] << 8);
LOG("uPD7220 PATTERN: %04x\n", m_pattern);
if (m_figs.m_figure_type)
break;
LOG("%02x = %02x %02x (%c) %06x %04x\n",m_cr,m_pr[2],m_pr[1],m_pr[1]?m_pr[1]:' ',m_ead,m_figs.m_dc);
fifo_set_direction(FIFO_WRITE);
@ -1347,6 +1358,8 @@ void upd7220_device::process_fifo()
m_figs.m_dir = m_pr[1] & 0x7;
m_figs.m_figure_type = (m_pr[1] & 0xf8) >> 3;
LOG("uPD7220 DIR: %02x\n", m_figs.m_dir);
LOG("uPD7220 FIG: %02x\n", m_figs.m_figure_type);
//if(m_figs.m_dir != 2)
// printf("DIR %02x\n",m_pr[1]);
}
@ -1354,30 +1367,46 @@ void upd7220_device::process_fifo()
// the Decision Mate V during start-up test upload only 2 params before execute the
// RDAT command, so I assume this is the expected behaviour, but this needs to be verified.
if (m_param_ptr == 3)
{
m_figs.m_dc = (m_pr[2]) | (m_figs.m_dc & 0x3f00);
LOG("uPD7220 DC: %04x\n", m_figs.m_dc);
}
if (m_param_ptr == 4)
{
m_figs.m_dc = (m_pr[2]) | ((m_pr[3] & 0x3f) << 8);
m_figs.m_gd = (m_pr[3] & 0x40) && ((m_mode & UPD7220_MODE_DISPLAY_MASK) == UPD7220_MODE_DISPLAY_MIXED);
LOG("uPD7220 DC: %04x\n", m_figs.m_dc);
LOG("uPD7220 GD: %02x\n", m_figs.m_gd);
}
if (m_param_ptr == 6)
{
m_figs.m_d = (m_pr[4]) | ((m_pr[5] & 0x3f) << 8);
LOG("uPD7220 D: %04x\n", m_figs.m_d);
}
if (m_param_ptr == 8)
{
m_figs.m_d2 = (m_pr[6]) | ((m_pr[7] & 0x3f) << 8);
LOG("uPD7220 D2: %04x\n", m_figs.m_d2);
}
if (m_param_ptr == 10)
{
m_figs.m_d1 = (m_pr[8]) | ((m_pr[9] & 0x3f) << 8);
LOG("uPD7220 D1: %04x\n", m_figs.m_d1);
}
if (m_param_ptr == 12)
{
m_figs.m_dm = (m_pr[10]) | ((m_pr[11] & 0x3f) << 8);
LOG("uPD7220 DM: %04x\n", m_figs.m_dm);
}
break;
case COMMAND_FIGD: /* figure draw start */
m_pattern = (m_ra[8]) | (m_ra[9]<<8);
if(m_figs.m_figure_type == 0)
draw_pixel();
else if(m_figs.m_figure_type == 1)