removed old obsolete code

c_os/user/ScrollbackBuffer.cc

@@ -1,33 +0,0 @@
-#include "user/ScrollbackBuffer.h"
-
-// NOTE: I added this file
-
-void ScrollbackBuffer::put(CGA::cga_line_t* line) {
-    CGA::cga_line_t* destination = (CGA::cga_line_t*)this->buffer.get() + this->pos;
-    mmem::memcpy<CGA::cga_line_t>(destination, line);
-
-    this->pos = (this->pos + 1) % this->rows;
-}
-
-void ScrollbackBuffer::get(CGA::cga_line_t* destination, unsigned char page) const {
-    if (page < 0 || page >= this->pages) {
-        return;
-    }
-
-    // We reverse the pagenumber so page 0 is always the newest page
-    unsigned char rpage = this->pages - page - 1;
-
-    // Copy linewise because page may wrap around buffer borders
-    unsigned int wrapline;
-    for (unsigned int line = 0; line < (this->rows / this->pages); ++line) {
-        wrapline = (this->pos + rpage * (this->rows / this->pages) + line) % this->rows;
-        mmem::memcpy<CGA::cga_line_t>(destination + line, (CGA::cga_line_t*)this->buffer.get() + wrapline);
-    }
-}
-
-void ScrollbackBuffer::clear() {
-    for (unsigned char page = 0; page < this->pages; ++page) {
-        mmem::zero<CGA::cga_page_t>(this->buffer.get() + page);
-    }
-    this->pos = 0;
-}

c_os/user/ScrollbackBuffer.h

@@ -1,31 +0,0 @@
-#ifndef __SCROLLBACKBUFFER_INCLUDE_H_
-#define __SCROLLBACKBUFFER_INCLUDE_H_
-
-#include "devices/CGA.h"
-#include "user/lib/MyLib.h"
-#include <memory>
-#include <stddef.h>
-
-class ScrollbackBuffer {
-private:
-    std::unique_ptr<CGA::cga_page_t[]> buffer;  // Circular buffer to store lines that left the screen
-    unsigned int pos;                           // Buffer write position
-
-    ScrollbackBuffer(const ScrollbackBuffer&) = delete;
-
-public:
-    const unsigned int pages;  // Number of pages in buffer
-    const unsigned int rows;   // Number of lines in buffer
-
-    ScrollbackBuffer(unsigned char rows, unsigned char pages)
-      : pos(0), pages(pages), rows(rows * pages) {
-        this->buffer = std::make_unique<CGA::cga_page_t[]>(pages);  // Allocate with new because it's quite large (and I want to use the allocator)
-        this->clear();                                              // Null out the buffer so no crap gets displayed
-    }
-
-    void put(CGA::cga_line_t* line);
-    void get(CGA::cga_line_t* destination, unsigned char page) const;
-    void clear();
-};
-
-#endif