gen.h

   1 #define SECSIZE         (1 << 18)
   2 #define MAXTMP          (1 << 12)
   3 #define LONGSZ          4
   4
   5 /* basic types */
   6 #define BT_SZMASK               0x00ff
   7 #define BT_SIGNED               0x0100
   8 #define BT_SZ(bt)               ((bt) & BT_SZMASK)
   9
  10 #define O_SIGNED        0x100
  11 /* binary operations for o_bop() */
  12 #define O_ADD           0x00
  13 #define O_SUB           0x01
  14 #define O_AND           0x02
  15 #define O_OR            0x03
  16 #define O_XOR           0x04
  17 #define O_SHL           0x10
  18 #define O_SHR           0x11
  19 #define O_MUL           0x20
  20 #define O_DIV           0x21
  21 #define O_MOD           0x22
  22 #define O_LT            0x30
  23 #define O_GT            0x31
  24 #define O_LE            0x32
  25 #define O_GE            0x33
  26 #define O_EQ            0x34
  27 #define O_NEQ           0x35
  28 /* unary operations for o_uop() */
  29 #define O_NEG           0x40
  30 #define O_NOT           0x41
  31 #define O_LNOT          0x42
  32
  33 /* operations */
  34 void o_bop(int op);
  35 void o_uop(int op);
  36 void o_cast(unsigned bt);
  37 void o_memcpy(void);
  38 void o_memset(void);
  39 void o_call(int argc, int ret);
  40 void o_ret(int ret);
  41 void o_assign(unsigned bt);
  42 void o_deref(unsigned bt);
  43 void o_load(void);
  44 int o_popnum(long *c);
  45 /* pushing values */
  46 void o_num(long n);
  47 void o_local(long addr);
  48 void o_sym(char *sym);
  49 void o_tmpdrop(int n);
  50 void o_tmpswap(void);
  51 void o_tmpcopy(void);
  52 /* handling locals */
  53 long o_mklocal(int size);
  54 void o_rmlocal(long addr, int sz);
  55 long o_arg2loc(int i);
  56 /* branches */
  57 long o_mklabel(void);
  58 long o_jz(long addr);
  59 long o_jnz(long addr);
  60 long o_jmp(long addr);
  61 void o_filljmp(long addr);
  62 void o_filljmp2(long addr, long jmpdst);
  63 /* conditional instructions */
  64 void o_fork(void);
  65 void o_forkpush(void);
  66 void o_forkjoin(void);
  67 /* data/bss sections */
  68 void o_mkbss(char *name, int size, int global);
  69 void *o_mkdat(char *name, int size, int global);
  70 void o_datset(char *name, int off, unsigned bt);
  71 /* functions */
  72 void o_func_beg(char *name, int global);
  73 void o_func_end(void);
  74 /* output */
  75 void o_write(int fd);
  76 void o_nogen(void);
  77 void o_dogen(void);