1 files changed, 0 insertions, 92 deletions
diff --git a/src/vga.cc b/src/vga.cc
deleted file mode 100644
index 66a6b3a..0000000
--- a/src/vga.cc
+++ /dev/null
@@ -1,92 +0,0 @@
-#include "vga.h"
-#include <string.h>
-
-static_assert(sizeof(VGA::Entry) == 2);
-
-VGA::VGA(vga_color fg, vga_color bg, uint32_t address) : color_fg(fg), color_bg(bg) {
-  buffer = reinterpret_cast<Entry*>(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].c = ' ';
-      buffer[index].fg = color_fg;
-      buffer[index].bg = color_bg;
-    }
-  }
-
-  enable_cursor(14, 15);
-  update_cursor();
-}
-
-void VGA::set_color(vga_color fg, vga_color bg) {
-  color_fg = fg;
-  color_bg = bg;
-  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].fg = color_fg;
-      buffer[index].bg = color_bg;
-    }
-  }
-}
-
-void VGA::enable_cursor(uint8_t start, uint8_t end) {
-  p_3d4.write(0x0a);
-  p_3d5.write((p_3d5.read() & 0xc0) | start);
-
-  p_3d4.write(0x0b);
-  p_3d5.write((p_3d5.read() & 0xe0) | end);
-}
-void VGA::disable_cursor() {
-  p_3d4.write(0x0a);
-  p_3d5.write(0x20);
-}
-void VGA::update_cursor() {
-  const uint16_t pos = row * max_columns + column;
-
-  p_3d4.write(0x0f);
-  p_3d5.write(static_cast<uint8_t>(pos & 0xff));
-
-  p_3d4.write(0x0e);
-  p_3d5.write(static_cast<uint8_t>((pos >> 8) & 0xff));
-}
-
-void VGA::write(char c) {
-  switch (c) {
-    case '\n':
-      column = 0;
-      ++row;
-      break;
-    default: {
-      const size_t index = row * max_columns + column;
-      buffer[index].c = c;
-      ++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());
-  }
-}