103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
#include <assert.h>
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#include <stdlib.h>
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#include "memory_view.h"
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//
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// Created by william on 6/1/24.
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//
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void memory_view_write_line(MemoryView *view, int line, address base_address, byte *data) {
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window_inter_print(view->window, 0, line + 1, "[%04x]", base_address);
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for (int i = 0; i <= MEMORY_VIEW_LINE_BYTE_COUNT; i++) {
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window_inter_print(view->window, 7 + i * 3, line + 1, "%02x", data[i]);
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}
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}
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void memory_view_cursor_init(MemoryView *view) {
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Cursor *cursor = &view->window->cursor;
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window_inter_cursor_init(view->window, 0xf, 0xf);
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cursor->min_x = 8;
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cursor->min_y = 2;
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cursor->multiplier_x = 3;
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cursor->width = 2;
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cursor_enable(cursor);
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}
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void memory_view_handle_key_down(InteractWindow *window, int keycode) {
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}
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void memory_view_init(InteractWindow *interact, ram ram, int x, int y) {
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MemoryView *view = malloc(sizeof(MemoryView));
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view->window = interact;
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view->ram = ram;
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view->base_address = 0x0000;
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interact->view = view;
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interact->handle_cursor_move = &memory_view_cursor_move;
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interact->handle_key_down = &memory_view_handle_key_down;
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window_inter_init(interact, x, y, MEMORY_VIEW_WIDTH, MEMORY_VIEW_HEIGHT, "MEMORY VIEW");
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window_inter_print(interact, 0, 0, " +0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +a +b +c +d +e +f");
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memory_view_print(view);
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memory_view_cursor_init(view);
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}
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void memory_view_print(MemoryView *view) {
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for (int line = 0; line <= MEMORY_VIEW_LINE_COUNT; line++) {
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address line_address = view->base_address + line * (MEMORY_VIEW_LINE_BYTE_COUNT + 1);
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byte *data = &view->ram[line_address];
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memory_view_write_line(view, line, line_address, data);
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}
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}
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void memory_view_goto(MemoryView *view, address target) {
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assert(target < RAM_SIZE);
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address max_base_address = RAM_SIZE - MEMORY_VIEW_BYTE_COUNT;
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if (target > max_base_address) {
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target = max_base_address;
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}
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address line_addr = target & 0xfff0;
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view->base_address = line_addr;
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memory_view_print(view);
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}
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void memory_view_scroll(MemoryView *view, int direction) {
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assert(direction == CURSOR_OFFSET_DOWN || direction == CURSOR_OFFSET_UP);
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int offset = 0;
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if (direction == CURSOR_OFFSET_UP && view->base_address > MEMORY_VIEW_LINE_BYTE_COUNT) {
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offset -= MEMORY_VIEW_LINE_BYTE_COUNT + 1;
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}
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if (direction == CURSOR_OFFSET_DOWN && view->base_address < RAM_SIZE - MEMORY_VIEW_BYTE_COUNT) {
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offset += MEMORY_VIEW_LINE_BYTE_COUNT + 1;
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}
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address target = view->base_address + offset;
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memory_view_goto(view, target);
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}
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void memory_view_cursor_move(InteractWindow *window, int horizontal, int vertical) {
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MemoryView *view = (MemoryView *) window->view;
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if (vertical == CURSOR_OFFSET_DOWN && view->window->cursor.pos_y == 0xf ||
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vertical == CURSOR_OFFSET_UP && view->window->cursor.pos_y == 0) {
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// Scroll the view
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memory_view_scroll(view, vertical);
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}
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// We are not on any edge, move the cursor
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cursor_move(&view->window->cursor, horizontal, vertical);
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}
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void memory_view_cursor_set_addr(MemoryView *view, address target) {
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int view_byte = target - view->base_address;
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int x = view_byte & 0x0f;
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int y = (view_byte & 0xf0) >> 4;
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cursor_set_pos(&view->window->cursor, x, y);
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} |