X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Flisp%2Fao_lisp.h;h=d32e7dcd8da263f8d96377bd8190ded9469a5b22;hb=ed6967cef5d82baacafe1c23229f44d58c838326;hp=a445ddddaadf991012fd2c6387b7b0da1e2d34fe;hpb=e1acf5eb12aceda7aa838df031c1da1129d0fa5d;p=fw%2Faltos

diff --git a/src/lisp/ao_lisp.h b/src/lisp/ao_lisp.h
index a445dddd..d32e7dcd 100644
--- a/src/lisp/ao_lisp.h
+++ b/src/lisp/ao_lisp.h
@@ -17,10 +17,16 @@
 
 #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;
@@ -89,10 +95,13 @@ extern uint8_t		ao_lisp_pool[AO_LISP_POOL + AO_LISP_POOL_EXTRA] __attribute__((a
 #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_BOOL		9
-#define AO_LISP_NUM_TYPE	10
+#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
@@ -105,7 +114,9 @@ extern uint16_t		ao_lisp_top;
 #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;
 
@@ -148,11 +159,17 @@ struct ao_lisp_val {
 	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 {
@@ -161,6 +178,44 @@ struct ao_lisp_bool {
 	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
@@ -179,6 +234,16 @@ ao_lisp_frame_poly(struct ao_lisp_frame *frame) {
 	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 */
@@ -187,7 +252,7 @@ enum eval_state {
 	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 */
@@ -325,6 +390,16 @@ static inline int ao_lisp_poly_type(ao_poly poly) {
 	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)
 {
@@ -337,18 +412,30 @@ ao_lisp_cons_poly(struct ao_lisp_cons *cons)
 	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)
 {
@@ -396,6 +483,22 @@ 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];
@@ -430,6 +533,11 @@ ao_lisp_alloc(int size);
 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);
 
@@ -458,12 +566,18 @@ ao_lisp_stack_fetch(int id) {
 	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_print(ao_poly v);
+ao_lisp_bool_write(ao_poly v);
 
 #ifdef AO_LISP_MAKE_CONST
 struct ao_lisp_bool	*ao_lisp_true, *ao_lisp_false;
@@ -478,6 +592,10 @@ extern const struct ao_lisp_type ao_lisp_cons_type;
 struct ao_lisp_cons *
 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);
 
@@ -487,10 +605,10 @@ void
 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);
@@ -511,10 +629,10 @@ ao_poly
 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;
@@ -524,13 +642,13 @@ extern struct ao_lisp_frame	*ao_lisp_frame_global;
 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);
@@ -538,16 +656,35 @@ 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);
@@ -570,9 +707,27 @@ ao_lisp_eval(ao_poly p);
 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;
 
@@ -605,6 +760,7 @@ ao_lisp_read_eval_print(void);
 
 /* 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
 
@@ -625,11 +781,14 @@ ao_lisp_frame_free(struct ao_lisp_frame *frame);
 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;
@@ -640,7 +799,7 @@ struct ao_lisp_lambda *
 ao_lisp_lambda_new(ao_poly cons);
 
 void
-ao_lisp_lambda_print(ao_poly lambda);
+ao_lisp_lambda_write(ao_poly lambda);
 
 ao_poly
 ao_lisp_lambda_eval(void);
@@ -664,13 +823,19 @@ void
 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);
 
 /* 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);
 
@@ -687,7 +852,7 @@ ao_lisp_error(int error, char *format, ...);
 
 /* 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
@@ -695,12 +860,12 @@ int ao_lisp_stack_depth;
 #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)
 {
@@ -725,6 +890,16 @@ 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
@@ -732,11 +907,11 @@ ao_lisp_frames_dump(void)
 #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++)