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Text Mode Cursor: Difference between revisions
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Added section Setting the Cursor Start and End Scanlines
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</source>
==Setting the Cursor Start and End Scanlines==
Use the Cursor Start Register (0x0A) and the Cursor End Register (0x0B). The highest scanline is 0 and the lowest scanline is the maximum scanline (15 worked for me).
===Source in C===
<source lang="c">
// enable the cursor and set the cursor start and end scanlines
void enable_cursor(uint8_t cursor_start, uint8_t cursor_end)
{
outb(0x3D4, 0x0A);
outb(0x3D5, (inb(0x3D5) & 0xC0) | cursor_start);
outb(0x3D4, 0x0B);
outb(0x3D5, (inb(0x3E0) & 0xE0) | cursor_end);
}
</source>
To make the cursor be a block instead of a line, try enable_cursor(0, 15).
==Disabling The Cursor With the BIOS==
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