1 files changed, 0 insertions, 61 deletions
diff --git a/kernel/vga.cc b/kernel/vga.cc
deleted file mode 100644
index 83d0060..0000000
--- a/kernel/vga.cc
+++ /dev/null
@@ -1,61 +0,0 @@
-#include "vga.h"
-#include <string.h>
-
-constexpr uint8_t vga_entry_color(VGA::vga_color fg, VGA::vga_color bg) {
-  return fg | bg << 4;
-}
-
-constexpr uint16_t vga_entry(unsigned char uc, uint8_t color) {
-  return (uint16_t)uc | (uint16_t)color << 8;
-}
-
-VGA::VGA(vga_color fg, vga_color bg, uint32_t address) {
-  color = vga_entry_color(fg, bg);
-  buffer = (uint16_t*)address;
-
-  // clear buffer
-  for (size_t y = 0; y < max_rows; y++) {
-    for (size_t x = 0; x < max_columns; x++) {
-      const size_t index = y * max_columns + x;
-      buffer[index] = vga_entry(' ', color);
-    }
-  }
-}
-
-void VGA::write(char c) {
-  switch (c) {
-    case '\n':
-      column = 0;
-      ++row;
-      break;
-    default: {
-      const size_t index = row * max_columns + column;
-      buffer[index] = vga_entry(c, (color == 0) ? this->color : color);
-      ++column;
-    }
-  }
-
-  if (column == max_columns) {
-    column = 0;
-    ++row;
-  }
-
-  if (row == max_rows) {
-    // scroll up - move rows 1~25 up by one
-    for (size_t y = 1; y < max_rows; y++) {
-      const auto prev_y = y - 1;
-      for (size_t x = 0; x < max_columns; ++x) {
-        const auto prev = prev_y * max_columns + x;
-        const auto idx = y * max_columns + x;
-        buffer[prev] = buffer[idx];
-      }
-    }
-    --row;
-  }
-}
-
-void VGA::write(ViewIterator& iter) {
-  while (iter) {
-    write(iter.next());
-  }
-}