sdcc initial version of paul's xa_asm

[fw/sdcc] / as / xa51 / xa_main.h

diff --git a/as/xa51/xa_main.h b/as/xa51/xa_main.h
new file mode 100644 (file)
index 0000000..6b1e30f
--- /dev/null
+++ b/as/xa51/xa_main.h
@@ -0,0 +1,61 @@
+#define SIZE8 0
+#define SIZE16 1
+#define SIZE32 2
+#define UNKNOWN -1
+#define WORD_REG 16384
+#define BYTE_REG 32768
+
+/* max # of bytes in db directive */
+#define MAX_DB          2500
+
+/* max # char in symbol name */
+#define MAX_SYMBOL      1024
+
+/* max # of bytes per line */
+#define MAX_LINE       4096
+
+/* REL() computes branch operand from dest and memory */
+/* location of the jump instruction itself */
+/* this is later adjusted by one for jcu, of course */
+#define BRANCH_SPACING 2
+#define REL(dest, mem) (((dest)-((((mem)+1)/(\
+BRANCH_SPACING))*(BRANCH_SPACING)))/(BRANCH_SPACING))
+
+#define NOP_OPCODE 0   /* opcode for NOP */
+
+/* a linked list of all the symbols */
+
+struct symbol {
+        char *name;
+        int value;
+        int istarget;   /* 1 if a branch target, 0 otherwise */
+        int isdef;      /* 1 if defined, 0 if no value yet */
+        int line_def;   /* line in which is was defined */
+        int isbit;      /* 1 if a bit address, 0 otherwise */
+       int isreg;      /* 1 if a register, 0 otehrwise */
+        struct symbol *next; };
+
+/* a list of all the symbols that are branch targets */
+/* (and will need to get aligned on 4 byte boundries) */
+
+struct target {
+        char *name;
+        struct target *next; };
+
+
+extern FILE *yyin;
+extern char *yytext;
+extern int lineno;
+extern int p1, p2, p3, mem, m_len;
+
+extern struct symbol * build_sym_list(char *thename);
+extern int assign_value(char *thename, int thevalue);
+extern int mk_bit(char *thename);
+extern int mk_reg(char *thename);
+extern void out(int *byte_list, int num);
+extern int is_target(char *thename);
+extern void pad_with_nop();
+extern int binary2int(char *str);
+extern int is_def(char *thename);
+extern int get_value(char *thename);
+