> compile NEMU

ysyx_22040000 李心杨
Linux calcite 6.6.19 #1-NixOS SMP PREEMPT_DYNAMIC Fri Mar  1 12:35:11 UTC 2024 x86_64 GNU/Linux
 16:26:21  up 4 days  3:32,  2 users,  load average: 0.85, 0.91, 0.95

am-kernels/kernels/demo/include/io.h

@@ -0,0 +1,97 @@
+#ifndef __DRAW_H__
+
+#define HAS_GUI
+
+#include <stdio.h>
+#include <am.h>
+#include <amdev.h>
+#include <klib-macros.h>
+
+#define ANSI_COLOR_RED   31
+#define ANSI_COLOR_GREEN 32
+#define ANSI_COLOR_WHITE 37
+#define ANSI_COLOR_RESET 0
+
+#ifdef HAS_GUI
+#define TILE_W 4
+#define SCREEN_W 320
+#define SCREEN_H 200
+static inline void set_color(int c) {
+}
+
+static inline void print_char(char c, int y, int x) {
+  static char last_c = 0xff;
+  static uint32_t buf[TILE_W * TILE_W];
+  if (last_c != c) {
+    last_c = c;
+    uint32_t color = 0x0;
+    if (c != ' ') { // convert different character to different color
+      uint8_t r = c / 25;
+      c -= r * 25;
+      uint8_t g = c / 5;
+      c -= g * 5;
+      uint8_t b = c;
+      r = r * 0x100 / 5;
+      g = g * 0x100 / 5;
+      b = b * 0x100 / 5;
+      color = (r << 16) | (g << 8) | b;
+    }
+    int i;
+    for (i = 0; i < TILE_W * TILE_W; i ++) {
+      buf[i] = color;
+    }
+  }
+  io_write(AM_GPU_FBDRAW, x * TILE_W, y * TILE_W, buf, TILE_W, TILE_W, false);
+}
+
+static inline void screen_clear() {
+  static uint32_t buf[SCREEN_W];
+  int i;
+  for (i = 0; i < SCREEN_H; i ++) {
+    io_write(AM_GPU_FBDRAW, 0, i, buf, SCREEN_W, 1, false);
+  }
+}
+
+static inline void screen_refresh() {
+  io_write(AM_GPU_FBDRAW, 0, 0, NULL, 0, 0, true);
+}
+
+static inline int screen_tile_height() {
+  return io_read(AM_GPU_CONFIG).height / TILE_W;
+}
+
+static inline int screen_tile_width() {
+  return io_read(AM_GPU_CONFIG).width / TILE_W;
+}
+#else
+static inline void set_color(int c) {
+  printf("\033[%dm", c);
+}
+
+static inline void print_char(char c, int y, int x) {
+  printf("\033[%d;%dH%c", y + 1, x + 1, c);
+}
+
+static inline void screen_clear() {
+  printf("\033[H\033[J");
+}
+
+static inline void screen_refresh() {
+}
+
+static inline int screen_tile_height() {
+  return 24;
+}
+
+static inline int screen_tile_width() {
+  return 80;
+}
+#endif
+
+static inline void usleep(int us) {
+  uint64_t now = io_read(AM_TIMER_UPTIME).us;
+  uint64_t next = now + us;
+  while (io_read(AM_TIMER_UPTIME).us < next) ;
+}
+
+#endif