UINT8 tms34061_device::xypixel_r(address_space &space, int offset)
{
/* determine the offset, then adjust it */
offs_t pixeloffs = m_regs[TMS34061_XYADDRESS];
if (offset)
adjust_xyaddress(offset);
/* adjust for the upper bits */
pixeloffs |= (m_regs[TMS34061_XYOFFSET] & 0x0f00) << 8;
/* mask to the VRAM size */
pixeloffs &= m_vrammask;
/* return the result */
return m_vram[pixeloffs];
}
static UINT8 xypixel_r(int offset)
{
/* determine the offset, then adjust it */
offs_t pixeloffs = tms34061.regs[TMS34061_XYADDRESS];
if (offset)
adjust_xyaddress(offset);
/* adjust for the upper bits */
pixeloffs |= (tms34061.regs[TMS34061_XYOFFSET] & 0x0f00) << 8;
/* mask to the VRAM size */
pixeloffs &= tms34061.vrammask;
/* return the result */
return tms34061.vram[pixeloffs];
}
static void xypixel_w(int offset, UINT8 data)
{
/* determine the offset, then adjust it */
offs_t pixeloffs = tms34061.regs[TMS34061_XYADDRESS];
if (offset)
adjust_xyaddress(offset);
/* adjust for the upper bits */
pixeloffs |= (tms34061.regs[TMS34061_XYOFFSET] & 0x0f00) << 8;
/* mask to the VRAM size */
pixeloffs &= tms34061.vrammask;
/* set the pixel data */
tms34061.vram[pixeloffs] = data;
tms34061.latchram[pixeloffs] = tms34061.latchdata;
}
void tms34061_device::xypixel_w(address_space &space, int offset, UINT8 data)
{
/* determine the offset, then adjust it */
offs_t pixeloffs = m_regs[TMS34061_XYADDRESS];
if (offset)
adjust_xyaddress(offset);
/* adjust for the upper bits */
pixeloffs |= (m_regs[TMS34061_XYOFFSET] & 0x0f00) << 8;
/* mask to the VRAM size */
pixeloffs &= m_vrammask;
if (VERBOSE) logerror("%s:tms34061 xy (%04x) = %02x/%02x\n", space.machine().describe_context(), pixeloffs, data, m_latchdata);
/* set the pixel data */
m_vram[pixeloffs] = data;
m_latchram[pixeloffs] = m_latchdata;
}
