arm-asm.c

   1 /*************************************************************/
   2 /*
   3  *  ARM dummy assembler for TCC
   4  *
   5  */
   6
   7 #ifdef TARGET_DEFS_ONLY
   8
   9 #define CONFIG_TCC_ASM
  10 #define NB_ASM_REGS 16
  11
  12 ST_FUNC void g(int c);
  13 ST_FUNC void gen_le16(int c);
  14 ST_FUNC void gen_le32(int c);
  15
  16 /*************************************************************/
  17 #else
  18 /*************************************************************/
  19
  20 static void asm_error(void)
  21 {
  22     tcc_error("ARM asm not implemented.");
  23 }
  24
  25 /* XXX: make it faster ? */
  26 ST_FUNC void g(int c)
  27 {
  28     int ind1;
  29     if (nocode_wanted)
  30         return;
  31     ind1 = ind + 1;
  32     if (ind1 > cur_text_section->data_allocated)
  33         section_realloc(cur_text_section, ind1);
  34     cur_text_section->data[ind] = c;
  35     ind = ind1;
  36 }
  37
  38 ST_FUNC void gen_le16 (int i)
  39 {
  40     g(i);
  41     g(i>>8);
  42 }
  43
  44 ST_FUNC void gen_le32 (int i)
  45 {
  46     gen_le16(i);
  47     gen_le16(i>>16);
  48 }
  49
  50 ST_FUNC void gen_expr32(ExprValue *pe)
  51 {
  52     gen_le32(pe->v);
  53 }
  54
  55 ST_FUNC void asm_opcode(TCCState *s1, int opcode)
  56 {
  57     asm_error();
  58 }
  59
  60 ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier)
  61 {
  62     asm_error();
  63 }
  64
  65 /* generate prolog and epilog code for asm statement */
  66 ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands,
  67                          int nb_outputs, int is_output,
  68                          uint8_t *clobber_regs,
  69                          int out_reg)
  70 {
  71     asm_error();
  72 }
  73
  74 ST_FUNC void asm_compute_constraints(ASMOperand *operands,
  75                                     int nb_operands, int nb_outputs,
  76                                     const uint8_t *clobber_regs,
  77                                     int *pout_reg)
  78 {
  79     asm_error();
  80 }
  81
  82 ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str)
  83 {
  84     asm_error();
  85 }
  86
  87 ST_FUNC int asm_parse_regvar (int t)
  88 {
  89     asm_error();
  90     return -1;
  91 }
  92
  93 /*************************************************************/
  94 #endif /* ndef TARGET_DEFS_ONLY */