S1D13503 Epson Electronics America, Inc., S1D13503 Datasheet - Page 172

• Manufacturer Part Number: S1D13503
• Description: S1d13503 Graphics Lcd Controller
• Manufacturer: Epson Electronics America, Inc.

Page 76
else
switch (PanelGrayLevel)
S1D13503
X18A-G-002-06
inp(PanelPortAddr+2);
{
case 2:
//
// If there are 2 gray levels, there are 8 pixels/byte
//
color &= 0x01;
while (*str != 0)
{
ch = *str++;
if ((ch < ' ') || (ch - ' ' > MAX_FONT-1))
pFont = &font[ch - ' '][0];
for (y = 0; y < 8; ++y)
ch = '.';
{
pVideo = pVideoFirstColumn;
Video = 0;
val = *pFont++;
//
// Since there are 2 gray shades, each bit in the font will be
// represented in video memory as a one bit pixel.
//
if (val & 0x80)
if (val & 0x40)
if (val & 0x20)
if (val & 0x10)
if (val & 0x08)
if (val & 0x04)
if (val & 0x02)
if (val & 0x01)
Video |= (color << 7);
Video |= (color << 6);
Video |= (color << 5);
Video |= (color << 4);
Video |= (color << 3);
Video |= (color << 2);
Video |= (color << 1);
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Issue Date: 01/01/30