#define DBG_MEM 0
#define DBG_EVAL 0
+#define DBG_READ 0
+#define DBG_FREE_CONS 0
+#define NDEBUG 1
#include <stdint.h>
#include <string.h>
#include <ao_lisp_os.h>
+#ifndef __BYTE_ORDER
+#include <endian.h>
+#endif
typedef uint16_t ao_poly;
typedef int16_t ao_signed_poly;
#define AO_LISP_POOL AO_LISP_POOL_CONST
#define _atom(n) ao_lisp_atom_poly(ao_lisp_atom_intern(n))
+#define _bool(v) ao_lisp_bool_poly(ao_lisp_bool_get(v))
+
+#define _ao_lisp_bool_true _bool(1)
+#define _ao_lisp_bool_false _bool(0)
-#define _ao_lisp_atom_quote _atom("quote")
-#define _ao_lisp_atom_set _atom("set")
-#define _ao_lisp_atom_setq _atom("setq")
-#define _ao_lisp_atom_t _atom("t")
-#define _ao_lisp_atom_car _atom("car")
-#define _ao_lisp_atom_cdr _atom("cdr")
-#define _ao_lisp_atom_cons _atom("cons")
-#define _ao_lisp_atom_last _atom("last")
-#define _ao_lisp_atom_length _atom("length")
-#define _ao_lisp_atom_cond _atom("cond")
-#define _ao_lisp_atom_lambda _atom("lambda")
-#define _ao_lisp_atom_led _atom("led")
-#define _ao_lisp_atom_delay _atom("delay")
-#define _ao_lisp_atom_pack _atom("pack")
-#define _ao_lisp_atom_unpack _atom("unpack")
-#define _ao_lisp_atom_flush _atom("flush")
-#define _ao_lisp_atom_eval _atom("eval")
-#define _ao_lisp_atom_read _atom("read")
#define _ao_lisp_atom_eof _atom("eof")
-#define _ao_lisp_atom_save _atom("save")
-#define _ao_lisp_atom_restore _atom("restore")
-#define _ao_lisp_atom_call2fcc _atom("call/cc")
-#define _ao_lisp_atom_collect _atom("collect")
+#define _ao_lisp_atom_else _atom("else")
+
+#define AO_LISP_BUILTIN_ATOMS
+#include "ao_lisp_builtin.h"
+
#else
#include "ao_lisp_const.h"
#ifndef AO_LISP_POOL
#define AO_LISP_ATOM 4
#define AO_LISP_BUILTIN 5
#define AO_LISP_FRAME 6
-#define AO_LISP_LAMBDA 7
-#define AO_LISP_STACK 8
-#define AO_LISP_NUM_TYPE 9
+#define AO_LISP_FRAME_VALS 7
+#define AO_LISP_LAMBDA 8
+#define AO_LISP_STACK 9
+#define AO_LISP_BOOL 10
+#define AO_LISP_BIGINT 11
+#define AO_LISP_FLOAT 12
+#define AO_LISP_NUM_TYPE 13
/* Leave two bits for types to use as they please */
#define AO_LISP_OTHER_TYPE_MASK 0x3f
#define AO_LISP_DIVIDE_BY_ZERO 0x02
#define AO_LISP_INVALID 0x04
#define AO_LISP_UNDEFINED 0x08
-#define AO_LISP_EOF 0x10
+#define AO_LISP_REDEFINED 0x10
+#define AO_LISP_EOF 0x20
+#define AO_LISP_EXIT 0x40
extern uint8_t ao_lisp_exception;
#define AO_LISP_IS_CONST(a) (ao_lisp_const <= ((uint8_t *) (a)) && ((uint8_t *) (a)) < ao_lisp_const + AO_LISP_POOL_CONST)
#define AO_LISP_IS_POOL(a) (ao_lisp_pool <= ((uint8_t *) (a)) && ((uint8_t *) (a)) < ao_lisp_pool + AO_LISP_POOL)
-#define AO_LISP_IS_INT(p) (ao_lisp_base_type(p) == AO_LISP_INT);
+#define AO_LISP_IS_INT(p) (ao_lisp_poly_base_type(p) == AO_LISP_INT)
void *
ao_lisp_ref(ao_poly poly);
ao_poly val;
};
+struct ao_lisp_frame_vals {
+ uint8_t type;
+ uint8_t size;
+ struct ao_lisp_val vals[];
+};
+
struct ao_lisp_frame {
uint8_t type;
uint8_t num;
ao_poly prev;
- struct ao_lisp_val vals[];
+ ao_poly vals;
+};
+
+struct ao_lisp_bool {
+ uint8_t type;
+ uint8_t value;
+ uint16_t pad;
+};
+
+struct ao_lisp_bigint {
+ uint32_t value;
+};
+
+struct ao_lisp_float {
+ uint8_t type;
+ uint8_t pad1;
+ uint16_t pad2;
+ float value;
};
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+static inline uint32_t
+ao_lisp_int_bigint(int32_t i) {
+ return AO_LISP_BIGINT | (i << 8);
+}
+static inline int32_t
+ao_lisp_bigint_int(uint32_t bi) {
+ return (int32_t) bi >> 8;
+}
+#else
+static inline uint32_t
+ao_lisp_int_bigint(int32_t i) {
+ return (uint32_t) (i & 0xffffff) | (AO_LISP_BIGINT << 24);
+}
+static inlint int32_t
+ao_lisp_bigint_int(uint32_t bi) {
+ return (int32_t) (bi << 8) >> 8;
+}
+#endif
+
+#define AO_LISP_MIN_INT (-(1 << (15 - AO_LISP_TYPE_SHIFT)))
+#define AO_LISP_MAX_INT ((1 << (15 - AO_LISP_TYPE_SHIFT)) - 1)
+#define AO_LISP_MIN_BIGINT (-(1 << 24))
+#define AO_LISP_MAX_BIGINT ((1 << 24) - 1)
+
+#define AO_LISP_NOT_INTEGER 0x7fffffff
+
/* Set on type when the frame escapes the lambda */
#define AO_LISP_FRAME_MARK 0x80
#define AO_LISP_FRAME_PRINT 0x40
return ao_lisp_poly(frame, AO_LISP_OTHER);
}
+static inline struct ao_lisp_frame_vals *
+ao_lisp_poly_frame_vals(ao_poly poly) {
+ return ao_lisp_ref(poly);
+}
+
+static inline ao_poly
+ao_lisp_frame_vals_poly(struct ao_lisp_frame_vals *vals) {
+ return ao_lisp_poly(vals, AO_LISP_OTHER);
+}
+
enum eval_state {
eval_sexpr, /* Evaluate an sexpr */
eval_val, /* Value computed */
eval_formal, /* Formal computed */
eval_exec, /* Start a lambda evaluation */
+ eval_apply, /* Execute apply */
eval_cond, /* Start next cond clause */
eval_cond_test, /* Check cond condition */
- eval_progn, /* Start next progn entry */
+ eval_begin, /* Start next begin entry */
eval_while, /* Start while condition */
eval_while_test, /* Check while condition */
eval_macro, /* Finished with macro generation */
uint16_t func;
};
-enum ao_lisp_builtin_id {
- builtin_eval,
- builtin_read,
- builtin_lambda,
- builtin_lexpr,
- builtin_nlambda,
- builtin_macro,
- builtin_car,
- builtin_cdr,
- builtin_cons,
- builtin_last,
- builtin_length,
- builtin_quote,
- builtin_set,
- builtin_setq,
- builtin_cond,
- builtin_progn,
- builtin_while,
- builtin_print,
- builtin_patom,
- builtin_plus,
- builtin_minus,
- builtin_times,
- builtin_divide,
- builtin_mod,
- builtin_equal,
- builtin_less,
- builtin_greater,
- builtin_less_equal,
- builtin_greater_equal,
- builtin_pack,
- builtin_unpack,
- builtin_flush,
- builtin_delay,
- builtin_led,
- builtin_save,
- builtin_restore,
- builtin_call_cc,
- builtin_collect,
- _builtin_last
-};
+#define AO_LISP_BUILTIN_ID
+#include "ao_lisp_builtin.h"
typedef ao_poly (*ao_lisp_func_t)(struct ao_lisp_cons *cons);
return type;
}
+static inline int
+ao_lisp_is_cons(ao_poly poly) {
+ return (ao_lisp_poly_base_type(poly) == AO_LISP_CONS);
+}
+
+static inline int
+ao_lisp_is_pair(ao_poly poly) {
+ return poly != AO_LISP_NIL && (ao_lisp_poly_base_type(poly) == AO_LISP_CONS);
+}
+
static inline struct ao_lisp_cons *
ao_lisp_poly_cons(ao_poly poly)
{
return ao_lisp_poly(cons, AO_LISP_CONS);
}
-static inline int
+static inline int32_t
ao_lisp_poly_int(ao_poly poly)
{
- return (int) ((ao_signed_poly) poly >> AO_LISP_TYPE_SHIFT);
+ return (int32_t) ((ao_signed_poly) poly >> AO_LISP_TYPE_SHIFT);
}
static inline ao_poly
-ao_lisp_int_poly(int i)
+ao_lisp_int_poly(int32_t i)
{
return ((ao_poly) i << 2) | AO_LISP_INT;
}
+static inline struct ao_lisp_bigint *
+ao_lisp_poly_bigint(ao_poly poly)
+{
+ return ao_lisp_ref(poly);
+}
+
+static inline ao_poly
+ao_lisp_bigint_poly(struct ao_lisp_bigint *bi)
+{
+ return ao_lisp_poly(bi, AO_LISP_OTHER);
+}
+
static inline char *
ao_lisp_poly_string(ao_poly poly)
{
return ao_lisp_poly(b, AO_LISP_OTHER);
}
+static inline ao_poly
+ao_lisp_bool_poly(struct ao_lisp_bool *b)
+{
+ return ao_lisp_poly(b, AO_LISP_OTHER);
+}
+
+static inline struct ao_lisp_bool *
+ao_lisp_poly_bool(ao_poly poly)
+{
+ return ao_lisp_ref(poly);
+}
+
+static inline ao_poly
+ao_lisp_float_poly(struct ao_lisp_float *f)
+{
+ return ao_lisp_poly(f, AO_LISP_OTHER);
+}
+
+static inline struct ao_lisp_float *
+ao_lisp_poly_float(ao_poly poly)
+{
+ return ao_lisp_ref(poly);
+}
+
+float
+ao_lisp_poly_number(ao_poly p);
+
/* memory functions */
extern int ao_lisp_collects[2];
int
ao_lisp_collect(uint8_t style);
+#if DBG_FREE_CONS
+void
+ao_lisp_cons_check(struct ao_lisp_cons *cons);
+#endif
+
void
ao_lisp_cons_stash(int id, struct ao_lisp_cons *cons);
return ao_lisp_poly_stack(ao_lisp_poly_fetch(id));
}
+void
+ao_lisp_frame_stash(int id, struct ao_lisp_frame *frame);
+
+struct ao_lisp_frame *
+ao_lisp_frame_fetch(int id);
+
+/* bool */
+
+extern const struct ao_lisp_type ao_lisp_bool_type;
+
+void
+ao_lisp_bool_write(ao_poly v);
+
+#ifdef AO_LISP_MAKE_CONST
+struct ao_lisp_bool *ao_lisp_true, *ao_lisp_false;
+
+struct ao_lisp_bool *
+ao_lisp_bool_get(uint8_t value);
+#endif
+
/* cons */
extern const struct ao_lisp_type ao_lisp_cons_type;
struct ao_lisp_cons *
-ao_lisp_cons_cons(ao_poly car, struct ao_lisp_cons *cdr);
+ao_lisp_cons_cons(ao_poly car, ao_poly cdr);
+
+/* Return a cons or NULL for a proper list, else error */
+struct ao_lisp_cons *
+ao_lisp_cons_cdr(struct ao_lisp_cons *cons);
+
+ao_poly
+ao_lisp__cons(ao_poly car, ao_poly cdr);
extern struct ao_lisp_cons *ao_lisp_cons_free_list;
ao_lisp_cons_free(struct ao_lisp_cons *cons);
void
-ao_lisp_cons_print(ao_poly);
+ao_lisp_cons_write(ao_poly);
void
-ao_lisp_cons_patom(ao_poly);
+ao_lisp_cons_display(ao_poly);
int
ao_lisp_cons_length(struct ao_lisp_cons *cons);
ao_lisp_string_unpack(char *a);
void
-ao_lisp_string_print(ao_poly s);
+ao_lisp_string_write(ao_poly s);
void
-ao_lisp_string_patom(ao_poly s);
+ao_lisp_string_display(ao_poly s);
/* atom */
extern const struct ao_lisp_type ao_lisp_atom_type;
extern struct ao_lisp_frame *ao_lisp_frame_current;
void
-ao_lisp_atom_print(ao_poly a);
+ao_lisp_atom_write(ao_poly a);
struct ao_lisp_atom *
ao_lisp_atom_intern(char *name);
ao_poly *
-ao_lisp_atom_ref(struct ao_lisp_frame *frame, ao_poly atom);
+ao_lisp_atom_ref(ao_poly atom);
ao_poly
ao_lisp_atom_get(ao_poly atom);
ao_poly
ao_lisp_atom_set(ao_poly atom, ao_poly val);
+ao_poly
+ao_lisp_atom_def(ao_poly atom, ao_poly val);
+
/* int */
void
-ao_lisp_int_print(ao_poly i);
+ao_lisp_int_write(ao_poly i);
+int32_t
+ao_lisp_poly_integer(ao_poly p);
+
+ao_poly
+ao_lisp_integer_poly(int32_t i);
+
+static inline int
+ao_lisp_integer_typep(uint8_t t)
+{
+ return (t == AO_LISP_INT) || (t == AO_LISP_BIGINT);
+}
+
+void
+ao_lisp_bigint_write(ao_poly i);
+
+extern const struct ao_lisp_type ao_lisp_bigint_type;
/* prim */
void
-ao_lisp_poly_print(ao_poly p);
+ao_lisp_poly_write(ao_poly p);
void
-ao_lisp_poly_patom(ao_poly p);
+ao_lisp_poly_display(ao_poly p);
int
ao_lisp_poly_mark(ao_poly p, uint8_t note_cons);
ao_poly
ao_lisp_set_cond(struct ao_lisp_cons *cons);
+/* float */
+extern const struct ao_lisp_type ao_lisp_float_type;
+
+void
+ao_lisp_float_write(ao_poly p);
+
+ao_poly
+ao_lisp_float_get(float value);
+
+static inline uint8_t
+ao_lisp_number_typep(uint8_t t)
+{
+ return ao_lisp_integer_typep(t) || (t == AO_LISP_FLOAT);
+}
+
+float
+ao_lisp_poly_number(ao_poly p);
+
/* builtin */
void
-ao_lisp_builtin_print(ao_poly b);
+ao_lisp_builtin_write(ao_poly b);
extern const struct ao_lisp_type ao_lisp_builtin_type;
/* frame */
extern const struct ao_lisp_type ao_lisp_frame_type;
+extern const struct ao_lisp_type ao_lisp_frame_vals_type;
#define AO_LISP_FRAME_FREE 6
void
ao_lisp_frame_bind(struct ao_lisp_frame *frame, int num, ao_poly atom, ao_poly val);
-int
-ao_lisp_frame_add(struct ao_lisp_frame **frame, ao_poly atom, ao_poly val);
+ao_poly
+ao_lisp_frame_add(struct ao_lisp_frame *frame, ao_poly atom, ao_poly val);
+
+void
+ao_lisp_frame_write(ao_poly p);
void
-ao_lisp_frame_print(ao_poly p);
+ao_lisp_frame_init(void);
/* lambda */
extern const struct ao_lisp_type ao_lisp_lambda_type;
ao_lisp_lambda_new(ao_poly cons);
void
-ao_lisp_lambda_print(ao_poly lambda);
-
-ao_poly
-ao_lisp_lambda(struct ao_lisp_cons *cons);
-
-ao_poly
-ao_lisp_lexpr(struct ao_lisp_cons *cons);
-
-ao_poly
-ao_lisp_nlambda(struct ao_lisp_cons *cons);
-
-ao_poly
-ao_lisp_macro(struct ao_lisp_cons *cons);
+ao_lisp_lambda_write(ao_poly lambda);
ao_poly
ao_lisp_lambda_eval(void);
-/* save */
-
-ao_poly
-ao_lisp_save(struct ao_lisp_cons *cons);
-
-ao_poly
-ao_lisp_restore(struct ao_lisp_cons *cons);
-
/* stack */
extern const struct ao_lisp_type ao_lisp_stack_type;
ao_lisp_stack_clear(void);
void
-ao_lisp_stack_print(ao_poly stack);
+ao_lisp_stack_write(ao_poly stack);
ao_poly
ao_lisp_stack_eval(void);
-ao_poly
-ao_lisp_call_cc(struct ao_lisp_cons *cons);
-
/* error */
+void
+ao_lisp_vprintf(char *format, va_list args);
+
+void
+ao_lisp_printf(char *format, ...);
+
void
ao_lisp_error_poly(char *name, ao_poly poly, ao_poly last);
ao_poly
ao_lisp_error(int error, char *format, ...);
+/* builtins */
+
+#define AO_LISP_BUILTIN_DECLS
+#include "ao_lisp_builtin.h"
+
/* debugging macros */
-#if DBG_EVAL
+#if DBG_EVAL || DBG_READ || DBG_MEM
#define DBG_CODE 1
int ao_lisp_stack_depth;
#define DBG_DO(a) a
#define DBG_IN() (++ao_lisp_stack_depth)
#define DBG_OUT() (--ao_lisp_stack_depth)
#define DBG_RESET() (ao_lisp_stack_depth = 0)
-#define DBG(...) printf(__VA_ARGS__)
-#define DBGI(...) do { DBG("%4d: ", __LINE__); DBG_INDENT(); DBG(__VA_ARGS__); } while (0)
-#define DBG_CONS(a) ao_lisp_cons_print(ao_lisp_cons_poly(a))
-#define DBG_POLY(a) ao_lisp_poly_print(a)
+#define DBG(...) ao_lisp_printf(__VA_ARGS__)
+#define DBGI(...) do { printf("%4d: ", __LINE__); DBG_INDENT(); DBG(__VA_ARGS__); } while (0)
+#define DBG_CONS(a) ao_lisp_cons_write(ao_lisp_cons_poly(a))
+#define DBG_POLY(a) ao_lisp_poly_write(a)
#define OFFSET(a) ((a) ? (int) ((uint8_t *) a - ao_lisp_pool) : -1)
-#define DBG_STACK() ao_lisp_stack_print(ao_lisp_stack_poly(ao_lisp_stack))
+#define DBG_STACK() ao_lisp_stack_write(ao_lisp_stack_poly(ao_lisp_stack))
static inline void
ao_lisp_frames_dump(void)
{
#define DBG_FRAMES()
#endif
+#if DBG_READ
+#define RDBGI(...) DBGI(__VA_ARGS__)
+#define RDBG_IN() DBG_IN()
+#define RDBG_OUT() DBG_OUT()
+#else
+#define RDBGI(...)
+#define RDBG_IN()
+#define RDBG_OUT()
+#endif
+
#define DBG_MEM_START 1
#if DBG_MEM
#include <assert.h>
extern int dbg_move_depth;
#define MDBG_DUMP 1
-#define MDBG_OFFSET(a) ((int) ((uint8_t *) (a) - ao_lisp_pool))
+#define MDBG_OFFSET(a) ((a) ? (int) ((uint8_t *) (a) - ao_lisp_pool) : -1)
extern int dbg_mem;
-#define MDBG_DO(a) a
+#define MDBG_DO(a) DBG_DO(a)
#define MDBG_MOVE(...) do { if (dbg_mem) { int d; for (d = 0; d < dbg_move_depth; d++) printf (" "); printf(__VA_ARGS__); } } while (0)
#define MDBG_MORE(...) do { if (dbg_mem) printf(__VA_ARGS__); } while (0)
#define MDBG_MOVE_IN() (dbg_move_depth++)
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