amd64/bareMetalOS-0.5.2/baremetal0.5.2/programs/libBareMetal.c

   1 // =============================================================================
   2 // BareMetal -- a 64-bit OS written in Assembly for x86-64 systems
   3 // Copyright (C) 2008-2011 Return Infinity -- see LICENSE.TXT
   4 //
   5 // The BareMetal OS C library code.
   6 //
   7 // Version 2.0
   8 //
   9 // This allows for a C program to access OS functions available in BareMetal OS
  10 //
  11 // Compile:
  12 // gcc -c -m64 -nostdlib -nostartfiles -nodefaultlibs -fomit-frame-pointer -mno-red-zone -o libBareMetal.o libBareMetal.c
  13 // gcc -c -m64 -nostdlib -nostartfiles -nodefaultlibs -fomit-frame-pointer -mno-red-zone -o yourapp.o yourapp.c
  14 //
  15 // Link:
  16 // ld -T app.ld -o yourapp.app yourapp.o
  17 // =============================================================================
  18
  19
  20 void b_print_string(char *str)
  21 {
  22         asm volatile ("call *0x00100018" : : "S"(str)); // Make sure source register (RSI) has the string address (str)
  23 }
  24
  25
  26 void b_print_char(char chr)
  27 {
  28         asm volatile ("call *0x00100028" : : "a"(chr));
  29 }
  30
  31
  32 void b_print_char_hex(char chr)
  33 {
  34         asm volatile ("call *0x00100038" : : "a"(chr));
  35 }
  36
  37
  38 void b_print_newline(void)
  39 {
  40         asm volatile ("call *0x00100048");
  41 }
  42
  43
  44 void b_print_string_with_color(char *str, unsigned char clr)
  45 {
  46         asm volatile ("call *0x00100388" : : "S"(str), "b"(clr)); // Make sure source register (RSI) has the string address (str)
  47 }
  48
  49
  50 void b_print_char_with_color(char chr, unsigned char clr)
  51 {
  52         asm volatile ("call *0x00100398" : : "a"(chr), "b"(clr));
  53
  54 }
  55
  56
  57 void b_print_char_hex_with_color(char chr, unsigned char clr)
  58 {
  59         asm volatile ("call *0x00100428" : : "a"(chr), "b"(clr));
  60
  61 }
  62
  63
  64 unsigned char b_input_get_key(void)
  65 {
  66         unsigned char chr;
  67         asm volatile ("call *0x00100058" : "=a" (chr));
  68         return chr;
  69 }
  70
  71
  72 unsigned char b_input_wait_for_key(void)
  73 {
  74         unsigned char chr;
  75         asm volatile ("call *0x00100068" : "=a" (chr));
  76         return chr;
  77 }
  78
  79
  80 unsigned long b_input_string(unsigned char *str, unsigned long nbr)
  81 {
  82         unsigned long len;
  83         asm volatile ("call *0x00100078" : "=c" (len) : "c"(nbr), "D"(str));
  84         return len;
  85 }
  86
  87
  88 unsigned long b_string_length(unsigned char *str)
  89 {
  90         unsigned long len;
  91         asm volatile ("call *0x001000D8" : "=c" (len) : "S"(str));
  92         return len;
  93 }
  94
  95
  96 unsigned long b_string_find_char(unsigned char *str, unsigned char chr)
  97 {
  98         unsigned long pos;
  99         asm volatile ("call *0x001000E8" : "=a" (pos) : "a"(chr), "S"(str));
 100         return pos;
 101 }
 102
 103
 104 void b_os_string_copy(unsigned char *dst, unsigned char *src)
 105 {
 106         asm volatile ("call *0x001000F8" : : "S"(src), "D"(dst));
 107 }
 108
 109
 110 void b_int_to_string(unsigned long nbr, unsigned char *str)
 111 {
 112         asm volatile ("call *0x00100178" : : "a"(nbr), "D"(str));
 113 }
 114
 115
 116 unsigned long b_string_to_int(unsigned char *str)
 117 {
 118         unsigned long tlong;
 119         asm volatile ("call *0x00100188" : "=a"(tlong) : "S"(str));
 120         return tlong;
 121 }
 122
 123
 124 void b_delay(unsigned long nbr)
 125 {
 126         asm volatile ("call *0x00100088" : : "a"(nbr));
 127 }
 128
 129
 130 unsigned long b_get_argc()
 131 {
 132         unsigned long tlong;
 133         asm volatile ("call *0x00100268" : "=a"(tlong));
 134         return tlong;
 135 }
 136
 137
 138 char* b_get_argv(unsigned char nbr)
 139 {
 140         char* tchar;
 141         asm volatile ("call *0x00100278" : "=S"(tchar) : "a"(nbr));
 142         return tchar;
 143 }
 144
 145
 146 unsigned long b_get_timercounter(void)
 147 {
 148         unsigned long tlong;
 149         asm volatile ("call *0x001002A8" : "=a"(tlong));
 150         return tlong;
 151 }
 152
 153
 154 void b_debug_dump_mem(void *data, unsigned int size)
 155 {
 156         asm volatile ("call *0x001001A8" : : "S"(data), "c"(size));
 157 }
 158
 159
 160 void b_serial_send(unsigned char chr)
 161 {
 162         asm volatile ("call *0x00100238" : : "a"(chr));
 163 }
 164
 165
 166 unsigned char b_serial_recv(void)
 167 {
 168         unsigned char chr;
 169         asm volatile ("call *0x00100248" : "=a" (chr));
 170         return chr;
 171 }
 172
 173
 174 void b_file_read(unsigned char *name, void *mem)
 175 {
 176         asm volatile ("call *0x00100318" : : "S"(name), "D"(mem));
 177 }
 178
 179
 180 void b_file_write(void *data, unsigned char *name, unsigned int size)
 181 {
 182         asm volatile ("call *0x00100328" : : "S"(data), "D"(name), "c"(size));
 183 }
 184
 185
 186 void b_file_delete(unsigned char *name)
 187 {
 188         asm volatile ("call *0x00100338" : : "S"(name));
 189 }
 190
 191
 192 unsigned long b_smp_enqueue(void *ptr,  unsigned long var)
 193 {
 194         unsigned long tlong;
 195         asm volatile ("call *0x00100218" : "=a"(tlong) : "a"(ptr), "S"(var));
 196         return tlong;
 197 }
 198
 199
 200 unsigned long b_smp_dequeue(unsigned long *var)
 201 {
 202         unsigned long tlong;
 203         asm volatile ("call *0x00100228" : "=a"(tlong), "=D"(var));
 204         return tlong;
 205 }
 206
 207
 208 void b_smp_run(unsigned long ptr)
 209 {
 210         asm volatile ("call *0x00100358" : : "a"(ptr));
 211 }
 212
 213
 214 unsigned long b_smp_queuelen(void)
 215 {
 216         unsigned long tlong;
 217         asm volatile ("call *0x00100288" : "=a"(tlong));
 218         return tlong;
 219 }
 220
 221
 222 void b_smp_wait(void)
 223 {
 224         asm volatile ("call *0x00100298");
 225 }
 226
 227
 228 void b_smp_lock(unsigned long ptr)
 229 {
 230         asm volatile ("call *0x00100368" : : "a"(ptr));
 231 }
 232
 233
 234 void b_smp_unlock(unsigned long ptr)
 235 {
 236         asm volatile ("call *0x00100378" : : "a"(ptr));
 237 }
 238
 239
 240 unsigned long b_smp_get_id()
 241 {
 242         unsigned long tlong;
 243         asm volatile ("call *0x00100208" : "=a"(tlong));
 244         return tlong;
 245 }
 246
 247
 248 unsigned long b_smp_numcores(void)
 249 {
 250         unsigned long tlong;
 251         asm volatile ("call *0x001003F8" : "=a"(tlong));
 252         return tlong;
 253 }
 254
 255
 256 void b_speaker_tone(unsigned long nbr)
 257 {
 258         asm volatile ("call *0x00100098" : : "a"(nbr));
 259 }
 260
 261
 262 void b_speaker_off(void)
 263 {
 264         asm volatile ("call *0x001000A8");
 265 }
 266
 267
 268 void b_speaker_beep(void)
 269 {
 270         asm volatile ("call *0x001000B8");
 271 }
 272
 273
 274 void b_ethernet_tx(void *mem, void *dest, unsigned short type, unsigned short len)
 275 {
 276         asm volatile ("call *0x001003A8" : : "S"(mem), "D"(dest), "b"(type), "c"(len));
 277 }
 278
 279 void b_ethernet_tx_raw(void *mem, unsigned short len)
 280 {
 281         asm volatile ("call *0x00100438" : : "S"(mem), "c"(len));
 282 }
 283
 284 unsigned long b_ethernet_rx(void *mem)
 285 {
 286         unsigned long tlong;
 287         asm volatile ("call *0x001003B8" : "=c"(tlong) : "D"(mem));
 288         return tlong;
 289 }
 290
 291 unsigned long b_ethernet_avail()
 292 {
 293         unsigned long tlong;
 294         asm volatile ("call *0x00100418" : "=a"(tlong));
 295         return tlong;
 296 }
 297
 298
 299 // =============================================================================
 300 // EOF