diff options
| -rw-r--r-- | bas.h | 172 | ||||
| -rw-r--r-- | tokens.c | 4 |
2 files changed, 139 insertions, 37 deletions
@@ -30,41 +30,143 @@ /* tokenized colon (statement separator) */ #define TOK_COLON 0x14 -/* BASIC tokens. Not a full set. BASIC uses 2 sets of tokens, one - for commands and the other for operators (which is to say, everything - *not* a command). */ -#define CMD_GOTO 0x0a -#define CMD_GO_TO 0x0b -#define CMD_ON 0x1e -#define CMD_GOSUB 0x0c -#define CMD_TRAP 0x0d -#define CMD_IF 0x07 -#define CMD_LIST 0x04 -#define CMD_RESTORE 0x23 -#define CMD_REM 0x00 -#define CMD_DATA 0x01 -#define CMD_ERROR 0x37 -#define CMD_FOR 0x08 -#define CMD_NEXT 0x09 -#define CMD_LET 0x06 -#define CMD_ILET 0x36 -#define CMD_DIM 0x14 -#define CMD_READ 0x22 -#define CMD_INPUT 0x02 -#define CMD_GET 0x29 -#define CMD_LOCATE 0x31 -#define CMD_NOTE 0x1b -#define OP_GOTO 0x17 -#define OP_GOSUB 0x18 -#define OP_THEN 0x1b -#define OP_COMMA 0x12 -#define OP_ARR_COMMA 0x3c -#define OP_SEMICOLON 0x15 -#define OP_EOS 0x14 -#define OP_EOL 0x16 -#define OP_NUMCONST 0x0e -#define OP_STRCONST 0x0f -#define OP_HASH 0x1c +/* BASIC tokens. Full set, taken from Chapter 10 of De Re Atari. + I used a paper copy, but you can also find it on the web: + https://www.atariarchives.org/dere/chapt10.php + BASIC uses 2 sets of tokens, one for commands and the other for + operators (which is to say, everything *not* a command). + See tokens.h for the actual names. */ + +/* commands (every statement begins with one of these) */ +#define CMD_REM 0x00 +#define CMD_DATA 0x01 +#define CMD_INPUT 0x02 +#define CMD_COLOR 0x03 +#define CMD_LIST 0x04 +#define CMD_ENTER 0x05 +#define CMD_LET 0x06 +#define CMD_IF 0x07 +#define CMD_FOR 0x08 +#define CMD_NEXT 0x09 +#define CMD_GOTO 0x0a +#define CMD_GO_TO 0x0b +#define CMD_GOSUB 0x0c +#define CMD_TRAP 0x0d +#define CMD_BYE 0x0e +#define CMD_CONT 0x0f +#define CMD_COM 0x10 +#define CMD_CLOSE 0x11 +#define CMD_CLR 0x12 +#define CMD_DEG 0x13 +#define CMD_DIM 0x14 +#define CMD_END 0x15 +#define CMD_NEW 0x16 +#define CMD_OPEN 0x17 +#define CMD_LOAD 0x18 +#define CMD_SAVE 0x19 +#define CMD_STATUS 0x1a +#define CMD_NOTE 0x1b +#define CMD_POINT 0x1c +#define CMD_XIO 0x1d +#define CMD_ON 0x1e +#define CMD_POKE 0x1f +#define CMD_PRINT 0x20 +#define CMD_RAD 0x21 +#define CMD_READ 0x22 +#define CMD_RESTORE 0x23 +#define CMD_RETURN 0x24 +#define CMD_RUN 0x25 +#define CMD_STOP 0x26 +#define CMD_POP 0x27 +#define CMD_QMARK 0x28 /* ? for PRINT */ +#define CMD_GET 0x29 +#define CMD_PUT 0x2a +#define CMD_GRAPHICS 0x2b +#define CMD_PLOT 0x2c +#define CMD_POSITION 0x2d +#define CMD_DOS 0x2e +#define CMD_DRAWTO 0x2f +#define CMD_SETCOLOR 0x30 +#define CMD_LOCATE 0x31 +#define CMD_SOUND 0x32 +#define CMD_LPRINT 0x33 +#define CMD_CSAVE 0x34 +#define CMD_CLOAD 0x35 +#define CMD_ILET 0x36 /* implied LET */ +#define CMD_ERROR 0x37 + +/* operators. 0x00-0x0d and 0x0a-0x11 are not used. + 0x3d-0x54 are functions. */ +#define OP_NUMCONST 0x0e +#define OP_STRCONST 0x0f +#define OP_COMMA 0x12 +#define OP_DOLLAR 0x13 +#define OP_EOS 0x14 +#define OP_COLON 0x14 +#define OP_SEMICOLON 0x15 +#define OP_EOL 0x16 +#define OP_GOTO 0x17 +#define OP_GOSUB 0x18 +#define OP_TO 0x19 +#define OP_STEP 0x1a +#define OP_THEN 0x1b +#define OP_HASH 0x1c +#define OP_NUM_LE 0x1d +#define OP_NUM_NE 0x1e +#define OP_NUM_GE 0x1f +#define OP_NUM_LT 0x20 +#define OP_NUM_GT 0x21 +#define OP_NUM_EQ 0x22 +#define OP_POWER 0x23 +#define OP_MULT 0x24 +#define OP_PLUS 0x25 +#define OP_MINUS 0x26 +#define OP_DIVIDE 0x27 +#define OP_NOT 0x28 +#define OP_OR 0x29 +#define OP_AND 0x2a +#define OP_GRP_LPAR 0x2b +#define OP_GRP_RPAR 0x2c +#define OP_NUM_ASSIGN 0x2d +#define OP_STR_ASSIGN 0x2e +#define OP_STR_LE 0x2f +#define OP_STR_NE 0x30 +#define OP_STR_GE 0x31 +#define OP_STR_LT 0x32 +#define OP_STR_GT 0x33 +#define OP_STR_EQ 0x34 +#define OP_UPLUS 0x35 +#define OP_UMINUS 0x36 +#define OP_STR_LPAR 0x37 +#define OP_ARR_LPAR 0x38 +#define OP_DIM_ARR_LPAR 0x39 +#define OP_FUNC_LPAR 0x3a +#define OP_DIM_STR_LPAR 0x3b +#define OP_ARR_COMMA 0x3c +#define OP_FUNC_STR 0x3d +#define OP_FUNC_CHR 0x3e +#define OP_FUNC_USR 0x3f +#define OP_FUNC_ASC 0x40 +#define OP_FUNC_VAL 0x41 +#define OP_FUNC_LEN 0x42 +#define OP_FUNC_ADR 0x43 +#define OP_FUNC_ATN 0x44 +#define OP_FUNC_COS 0x45 +#define OP_FUNC_PEEK 0x46 +#define OP_FUNC_SIN 0x47 +#define OP_FUNC_RND 0x48 +#define OP_FUNC_FRE 0x49 +#define OP_FUNC_EXP 0x4a +#define OP_FUNC_LOG 0x4b +#define OP_FUNC_CLOG 0x4c +#define OP_FUNC_SQR 0x4d +#define OP_FUNC_SGN 0x4e +#define OP_FUNC_ABS 0x4f +#define OP_FUNC_INT 0x50 +#define OP_FUNC_PADDLE 0x51 +#define OP_FUNC_STICK 0x52 +#define OP_FUNC_PTRIG 0x53 +#define OP_FUNC_STRIG 0x54 /* variable types, bits 6-7 of byte 0 of each vvtable entry. */ #define TYPE_SCALAR 0 @@ -101,8 +101,8 @@ const char *operators[] = { "+", "-", "(", - "", /* $38, redunant for arrays */ - "", /* $39, ditto */ + "", /* $38, redunant "(" for arrays */ + "", /* $39, ditto for strings */ "(", "(", ",", |