uint32_t e100_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
int x, y;
int vramad;
uint8_t *chardata;
uint8_t charcode;
LOGSCREEN("%s()\n", FUNCNAME);
vramad = 0;
for (int row = 0; row < 32 * 8; row += 8)
{
for (int col = 0; col < 32 * 8; col += 8)
{
/* look up the character data */
charcode = m_vram[vramad];
if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN("\n %c at X=%d Y=%d: ", charcode, col, row);
chardata = &m_char_ptr[(charcode * 8)];
/* plot the character */
for (y = 0; y < 8; y++)
{
if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN("\n %02x: ", *chardata);
for (x = 0; x < 8; x++)
{
if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN(" %02x: ", *chardata);
bitmap.pix16(row + y, col + x) = (*chardata & (1 << x)) ? 1 : 0;
}
chardata++;
}
vramad++;
}
if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN("\n");
}
return 0;
}
INPUT_PORTS_END
/* Video TODO: find and understand the char table within main rom */
uint32_t kron180_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
int x, y;
int vramad;
uint8_t *chardata;
uint8_t charcode;
LOGSCREEN(("%s()\n", FUNCNAME));
vramad = 0;
for (int row = 0; row < 25 * 8; row += 8)
{
for (int col = 0; col < 80 * 8; col += 8)
{
/* look up the character data */
charcode = m_vram[vramad];
if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN(("\n %c at X=%d Y=%d: ", charcode, col, row));
chardata = &m_char_ptr[(charcode * 8) + 8];
/* plot the character */
for (y = 0; y < 8; y++)
{
chardata--;
if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN(("\n %02x: ", *chardata));
for (x = 0; x < 8; x++)
{
if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN((" %02x: ", *chardata));
bitmap.pix16(row + (8 - y), col + (8 - x)) = (*chardata & (1 << x)) ? 1 : 0;
}
}
vramad += 2;
}
if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN(("\n"));
vramad += 96; // Each row is aligned at a 128 byte boundary
}
return 0;
}
uint32_t can09_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
int x, y;
#if 0
int vramad;
UINT8 *chardata;
UINT8 charcode;
#endif
LOGSCREEN("%s()\n", FUNCNAME);
// vramad = 0;
for (int row = 0; row < 72 * 8; row += 8)
{
for (int col = 0; col < 64 * 8; col += 8)
{
#if 0
/* look up the character data */
charcode = m_vram[vramad];
if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN("\n %c at X=%d Y=%d: ", charcode, col, row);
chardata = &m_char_ptr[(charcode * 8)];
#endif
/* plot the character */
for (y = 0; y < 8; y++)
{
// if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN("\n %02x: ", *chardata);
for (x = 0; x < 8; x++)
{
// if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN(" %02x: ", *chardata);
bitmap.pix16(row + y, col + x) = x & 1; //(*chardata & (1 << x)) ? 1 : 0;
}
// chardata++;
}
// vramad++;
}
// if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN("\n");
}
return 0;
}
