diff options
Diffstat (limited to 'miscutils/bc.c')
| -rw-r--r-- | miscutils/bc.c | 1647 |
1 files changed, 823 insertions, 824 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c index 0e5f26c..5b79b2d 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -3090,184 +3090,184 @@ static BC_STATUS zbc_lex_token(void) // This is the workhorse of the lexer. switch (c) { -// case '\0': // probably never reached -// p->lex_inbuf--; -// p->lex = XC_LEX_EOF; -// break; - case '\n': - p->lex_line++; - p->lex = XC_LEX_NLINE; - break; - case '\t': - case '\v': - case '\f': - case '\r': - case ' ': - bc_lex_whitespace(); - break; - case '!': - parse_lex_by_checking_eq_sign(XC_LEX_OP_REL_NE, BC_LEX_OP_BOOL_NOT); - if (p->lex == BC_LEX_OP_BOOL_NOT) { - s = zbc_POSIX_does_not_allow_bool_ops_this_is_bad("!"); - if (s) RETURN_STATUS(s); - } - break; - case '"': - s = zbc_lex_string(); - break; - case '#': - s = zbc_POSIX_does_not_allow("'#' script comments"); +// case '\0': // probably never reached +// p->lex_inbuf--; +// p->lex = XC_LEX_EOF; +// break; + case '\n': + p->lex_line++; + p->lex = XC_LEX_NLINE; + break; + case '\t': + case '\v': + case '\f': + case '\r': + case ' ': + bc_lex_whitespace(); + break; + case '!': + parse_lex_by_checking_eq_sign(XC_LEX_OP_REL_NE, BC_LEX_OP_BOOL_NOT); + if (p->lex == BC_LEX_OP_BOOL_NOT) { + s = zbc_POSIX_does_not_allow_bool_ops_this_is_bad("!"); if (s) RETURN_STATUS(s); - bc_lex_lineComment(); - break; - case '%': - parse_lex_by_checking_eq_sign(BC_LEX_OP_ASSIGN_MODULUS, XC_LEX_OP_MODULUS); - break; - case '&': - c2 = *p->lex_inbuf; - if (c2 == '&') { - s = zbc_POSIX_does_not_allow_bool_ops_this_is_bad("&&"); - if (s) RETURN_STATUS(s); - p->lex_inbuf++; - p->lex = BC_LEX_OP_BOOL_AND; - } else { - p->lex = XC_LEX_INVALID; - s = bc_error_bad_character('&'); - } - break; - case '(': - case ')': - p->lex = (BcLexType)(c - '(' + BC_LEX_LPAREN); - break; - case '*': - parse_lex_by_checking_eq_sign(BC_LEX_OP_ASSIGN_MULTIPLY, XC_LEX_OP_MULTIPLY); - break; - case '+': - c2 = *p->lex_inbuf; - if (c2 == '+') { - p->lex_inbuf++; - p->lex = BC_LEX_OP_INC; - } else - parse_lex_by_checking_eq_sign(BC_LEX_OP_ASSIGN_PLUS, XC_LEX_OP_PLUS); - break; - case ',': - p->lex = BC_LEX_COMMA; - break; - case '-': - c2 = *p->lex_inbuf; - if (c2 == '-') { - p->lex_inbuf++; - p->lex = BC_LEX_OP_DEC; - } else - parse_lex_by_checking_eq_sign(BC_LEX_OP_ASSIGN_MINUS, XC_LEX_OP_MINUS); - break; - case '.': - if (isdigit(*p->lex_inbuf)) - s = zbc_lex_number(c); - else { - p->lex = BC_LEX_KEY_LAST; - s = zbc_POSIX_does_not_allow("'.' as 'last'"); - } - break; - case '/': - c2 = *p->lex_inbuf; - if (c2 == '*') - s = zbc_lex_comment(); - else - parse_lex_by_checking_eq_sign(BC_LEX_OP_ASSIGN_DIVIDE, XC_LEX_OP_DIVIDE); - break; - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - case 'A': - case 'B': - case 'C': - case 'D': - case 'E': - case 'F': + } + break; + case '"': + s = zbc_lex_string(); + break; + case '#': + s = zbc_POSIX_does_not_allow("'#' script comments"); + if (s) RETURN_STATUS(s); + bc_lex_lineComment(); + break; + case '%': + parse_lex_by_checking_eq_sign(BC_LEX_OP_ASSIGN_MODULUS, XC_LEX_OP_MODULUS); + break; + case '&': + c2 = *p->lex_inbuf; + if (c2 == '&') { + s = zbc_POSIX_does_not_allow_bool_ops_this_is_bad("&&"); + if (s) RETURN_STATUS(s); + p->lex_inbuf++; + p->lex = BC_LEX_OP_BOOL_AND; + } else { + p->lex = XC_LEX_INVALID; + s = bc_error_bad_character('&'); + } + break; + case '(': + case ')': + p->lex = (BcLexType)(c - '(' + BC_LEX_LPAREN); + break; + case '*': + parse_lex_by_checking_eq_sign(BC_LEX_OP_ASSIGN_MULTIPLY, XC_LEX_OP_MULTIPLY); + break; + case '+': + c2 = *p->lex_inbuf; + if (c2 == '+') { + p->lex_inbuf++; + p->lex = BC_LEX_OP_INC; + } else + parse_lex_by_checking_eq_sign(BC_LEX_OP_ASSIGN_PLUS, XC_LEX_OP_PLUS); + break; + case ',': + p->lex = BC_LEX_COMMA; + break; + case '-': + c2 = *p->lex_inbuf; + if (c2 == '-') { + p->lex_inbuf++; + p->lex = BC_LEX_OP_DEC; + } else + parse_lex_by_checking_eq_sign(BC_LEX_OP_ASSIGN_MINUS, XC_LEX_OP_MINUS); + break; + case '.': + if (isdigit(*p->lex_inbuf)) s = zbc_lex_number(c); - break; - case ';': - p->lex = BC_LEX_SCOLON; - break; - case '<': - parse_lex_by_checking_eq_sign(XC_LEX_OP_REL_LE, XC_LEX_OP_REL_LT); - break; - case '=': - parse_lex_by_checking_eq_sign(XC_LEX_OP_REL_EQ, BC_LEX_OP_ASSIGN); - break; - case '>': - parse_lex_by_checking_eq_sign(XC_LEX_OP_REL_GE, XC_LEX_OP_REL_GT); - break; - case '[': - case ']': - p->lex = (BcLexType)(c - '[' + BC_LEX_LBRACKET); - break; - case '\\': - if (*p->lex_inbuf == '\n') { - p->lex = XC_LEX_WHITESPACE; - p->lex_inbuf++; - } else - s = bc_error_bad_character(c); - break; - case '^': - parse_lex_by_checking_eq_sign(BC_LEX_OP_ASSIGN_POWER, XC_LEX_OP_POWER); - break; - case 'a': - case 'b': - case 'c': - case 'd': - case 'e': - case 'f': - case 'g': - case 'h': - case 'i': - case 'j': - case 'k': - case 'l': - case 'm': - case 'n': - case 'o': - case 'p': - case 'q': - case 'r': - case 's': - case 't': - case 'u': - case 'v': - case 'w': - case 'x': - case 'y': - case 'z': - s = zbc_lex_identifier(); - break; - case '{': - case '}': - p->lex = (BcLexType)(c - '{' + BC_LEX_LBRACE); - break; - case '|': - c2 = *p->lex_inbuf; - if (c2 == '|') { - s = zbc_POSIX_does_not_allow_bool_ops_this_is_bad("||"); - if (s) RETURN_STATUS(s); - p->lex_inbuf++; - p->lex = BC_LEX_OP_BOOL_OR; - } else { - p->lex = XC_LEX_INVALID; - s = bc_error_bad_character(c); - } - break; - default: + else { + p->lex = BC_LEX_KEY_LAST; + s = zbc_POSIX_does_not_allow("'.' as 'last'"); + } + break; + case '/': + c2 = *p->lex_inbuf; + if (c2 == '*') + s = zbc_lex_comment(); + else + parse_lex_by_checking_eq_sign(BC_LEX_OP_ASSIGN_DIVIDE, XC_LEX_OP_DIVIDE); + break; + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + case 'A': + case 'B': + case 'C': + case 'D': + case 'E': + case 'F': + s = zbc_lex_number(c); + break; + case ';': + p->lex = BC_LEX_SCOLON; + break; + case '<': + parse_lex_by_checking_eq_sign(XC_LEX_OP_REL_LE, XC_LEX_OP_REL_LT); + break; + case '=': + parse_lex_by_checking_eq_sign(XC_LEX_OP_REL_EQ, BC_LEX_OP_ASSIGN); + break; + case '>': + parse_lex_by_checking_eq_sign(XC_LEX_OP_REL_GE, XC_LEX_OP_REL_GT); + break; + case '[': + case ']': + p->lex = (BcLexType)(c - '[' + BC_LEX_LBRACKET); + break; + case '\\': + if (*p->lex_inbuf == '\n') { + p->lex = XC_LEX_WHITESPACE; + p->lex_inbuf++; + } else + s = bc_error_bad_character(c); + break; + case '^': + parse_lex_by_checking_eq_sign(BC_LEX_OP_ASSIGN_POWER, XC_LEX_OP_POWER); + break; + case 'a': + case 'b': + case 'c': + case 'd': + case 'e': + case 'f': + case 'g': + case 'h': + case 'i': + case 'j': + case 'k': + case 'l': + case 'm': + case 'n': + case 'o': + case 'p': + case 'q': + case 'r': + case 's': + case 't': + case 'u': + case 'v': + case 'w': + case 'x': + case 'y': + case 'z': + s = zbc_lex_identifier(); + break; + case '{': + case '}': + p->lex = (BcLexType)(c - '{' + BC_LEX_LBRACE); + break; + case '|': + c2 = *p->lex_inbuf; + if (c2 == '|') { + s = zbc_POSIX_does_not_allow_bool_ops_this_is_bad("||"); + if (s) RETURN_STATUS(s); + p->lex_inbuf++; + p->lex = BC_LEX_OP_BOOL_OR; + } else { p->lex = XC_LEX_INVALID; s = bc_error_bad_character(c); - break; + } + break; + default: + p->lex = XC_LEX_INVALID; + s = bc_error_bad_character(c); + break; } RETURN_STATUS(s); @@ -3357,74 +3357,74 @@ static BC_STATUS zdc_lex_token(void) // This is the workhorse of the lexer. switch (c) { -// case '\0': // probably never reached -// p->lex = XC_LEX_EOF; -// break; - case '\n': - // '\n' is XC_LEX_NLINE, not XC_LEX_WHITESPACE - // (and "case '\n':" is not just empty here) - // only to allow interactive dc have a way to exit - // "parse" stage of "parse,execute" loop - // on <enter>, not on _next_ token (which would mean - // commands are not executed on pressing <enter>). - // IOW: typing "1p<enter>" should print "1" _at once_, - // not after some more input. - p->lex_line++; - p->lex = XC_LEX_NLINE; - break; - case '\t': - case '\v': - case '\f': - case '\r': - case ' ': - bc_lex_whitespace(); - break; - case '!': - c2 = *p->lex_inbuf; - if (c2 == '=') - p->lex = XC_LEX_OP_REL_NE; - else if (c2 == '<') - p->lex = XC_LEX_OP_REL_LE; - else if (c2 == '>') - p->lex = XC_LEX_OP_REL_GE; - else - RETURN_STATUS(bc_error_bad_character(c)); - p->lex_inbuf++; - break; - case '#': - bc_lex_lineComment(); - break; - case '.': - if (isdigit(*p->lex_inbuf)) - s = zbc_lex_number(c); - else - s = bc_error_bad_character(c); - break; - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - case 'A': - case 'B': - case 'C': - case 'D': - case 'E': - case 'F': +// case '\0': // probably never reached +// p->lex = XC_LEX_EOF; +// break; + case '\n': + // '\n' is XC_LEX_NLINE, not XC_LEX_WHITESPACE + // (and "case '\n':" is not just empty here) + // only to allow interactive dc have a way to exit + // "parse" stage of "parse,execute" loop + // on <enter>, not on _next_ token (which would mean + // commands are not executed on pressing <enter>). + // IOW: typing "1p<enter>" should print "1" _at once_, + // not after some more input. + p->lex_line++; + p->lex = XC_LEX_NLINE; + break; + case '\t': + case '\v': + case '\f': + case '\r': + case ' ': + bc_lex_whitespace(); + break; + case '!': + c2 = *p->lex_inbuf; + if (c2 == '=') + p->lex = XC_LEX_OP_REL_NE; + else if (c2 == '<') + p->lex = XC_LEX_OP_REL_LE; + else if (c2 == '>') + p->lex = XC_LEX_OP_REL_GE; + else + RETURN_STATUS(bc_error_bad_character(c)); + p->lex_inbuf++; + break; + case '#': + bc_lex_lineComment(); + break; + case '.': + if (isdigit(*p->lex_inbuf)) s = zbc_lex_number(c); - break; - case '[': - s = zdc_lex_string(); - break; - default: - p->lex = XC_LEX_INVALID; + else s = bc_error_bad_character(c); - break; + break; + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + case 'A': + case 'B': + case 'C': + case 'D': + case 'E': + case 'F': + s = zbc_lex_number(c); + break; + case '[': + s = zdc_lex_string(); + break; + default: + p->lex = XC_LEX_INVALID; + s = bc_error_bad_character(c); + break; } RETURN_STATUS(s); @@ -3559,10 +3559,9 @@ static void bc_parse_reset(void) static void bc_parse_free(void) { - IF_BC(BcParse *p = &G.prs;) - IF_BC(bc_vec_free(&p->exits);) - IF_BC(bc_vec_free(&p->conds);) - IF_BC(bc_vec_free(&p->ops);) + IF_BC(bc_vec_free(&G.prs.exits);) + IF_BC(bc_vec_free(&G.prs.conds);) + IF_BC(bc_vec_free(&G.prs.ops);) bc_vec_free(&G.prs.lex_strnumbuf); } @@ -3571,7 +3570,7 @@ static void bc_parse_create(size_t fidx) BcParse *p = &G.prs; memset(p, 0, sizeof(BcParse)); - bc_char_vec_init(&G.prs.lex_strnumbuf); + bc_char_vec_init(&p->lex_strnumbuf); IF_BC(bc_vec_init(&p->exits, sizeof(size_t), NULL);) IF_BC(bc_vec_init(&p->conds, sizeof(size_t), NULL);) IF_BC(bc_vec_init(&p->ops, sizeof(BcLexType), NULL);) @@ -3938,26 +3937,26 @@ static BC_STATUS zbc_parse_incdec(BcInst *prev, bool *paren_expr, *nexprs = *nexprs + 1; switch (type) { - case XC_LEX_NAME: - s = zbc_parse_name(prev, flags | BC_PARSE_NOCALL); - break; - case BC_LEX_KEY_IBASE: - case BC_LEX_KEY_LAST: - case BC_LEX_KEY_OBASE: - bc_parse_push(type - BC_LEX_KEY_IBASE + XC_INST_IBASE); - s = zbc_lex_next(); - break; - case BC_LEX_KEY_SCALE: - s = zbc_lex_next(); - if (s) RETURN_STATUS(s); - if (p->lex == BC_LEX_LPAREN) - s = bc_error_bad_token(); - else - bc_parse_push(XC_INST_SCALE); - break; - default: + case XC_LEX_NAME: + s = zbc_parse_name(prev, flags | BC_PARSE_NOCALL); + break; + case BC_LEX_KEY_IBASE: + case BC_LEX_KEY_LAST: + case BC_LEX_KEY_OBASE: + bc_parse_push(type - BC_LEX_KEY_IBASE + XC_INST_IBASE); + s = zbc_lex_next(); + break; + case BC_LEX_KEY_SCALE: + s = zbc_lex_next(); + if (s) RETURN_STATUS(s); + if (p->lex == BC_LEX_LPAREN) s = bc_error_bad_token(); - break; + else + bc_parse_push(XC_INST_SCALE); + break; + default: + s = bc_error_bad_token(); + break; } if (!s) bc_parse_push(inst); @@ -4489,74 +4488,74 @@ static BC_STATUS zbc_parse_stmt_possibly_auto(bool auto_allowed) dbg_lex("%s:%d p->lex:%d", __func__, __LINE__, p->lex); switch (p->lex) { - case XC_LEX_OP_MINUS: - case BC_LEX_OP_INC: - case BC_LEX_OP_DEC: - case BC_LEX_OP_BOOL_NOT: - case BC_LEX_LPAREN: - case XC_LEX_NAME: - case XC_LEX_NUMBER: - case BC_LEX_KEY_IBASE: - case BC_LEX_KEY_LAST: - case BC_LEX_KEY_LENGTH: - case BC_LEX_KEY_OBASE: - case BC_LEX_KEY_READ: - case BC_LEX_KEY_SCALE: - case BC_LEX_KEY_SQRT: - s = zbc_parse_expr(BC_PARSE_PRINT); - break; - case XC_LEX_STR: - s = zbc_parse_pushSTR(); - bc_parse_push(XC_INST_PRINT_STR); - break; - case BC_LEX_KEY_BREAK: - case BC_LEX_KEY_CONTINUE: - s = zbc_parse_break_or_continue(p->lex); - break; - case BC_LEX_KEY_FOR: - s = zbc_parse_for(); - break; - case BC_LEX_KEY_HALT: - bc_parse_push(BC_INST_HALT); - s = zbc_lex_next(); - break; - case BC_LEX_KEY_IF: - s = zbc_parse_if(); - break; - case BC_LEX_KEY_LIMITS: - // "limits" is a compile-time command, - // the output is produced at _parse time_. - printf( - "BC_BASE_MAX = "BC_MAX_OBASE_STR "\n" - "BC_DIM_MAX = "BC_MAX_DIM_STR "\n" - "BC_SCALE_MAX = "BC_MAX_SCALE_STR "\n" - "BC_STRING_MAX = "BC_MAX_STRING_STR"\n" - "BC_NAME_MAX = "BC_MAX_NAME_STR "\n" - "BC_NUM_MAX = "BC_MAX_NUM_STR "\n" - "MAX Exponent = "BC_MAX_EXP_STR "\n" - "Number of vars = "BC_MAX_VARS_STR "\n" - ); - s = zbc_lex_next(); - break; - case BC_LEX_KEY_PRINT: - s = zbc_parse_print(); - break; - case BC_LEX_KEY_QUIT: - // "quit" is a compile-time command. For example, - // "if (0 == 1) quit" terminates when parsing the statement, - // not when it is executed - QUIT_OR_RETURN_TO_MAIN; - case BC_LEX_KEY_RETURN: - if (!p->in_funcdef) - RETURN_STATUS(bc_error("'return' not in a function")); - s = zbc_parse_return(); - break; - case BC_LEX_KEY_WHILE: - s = zbc_parse_while(); - break; - default: - s = bc_error_bad_token(); - break; + case XC_LEX_OP_MINUS: + case BC_LEX_OP_INC: + case BC_LEX_OP_DEC: + case BC_LEX_OP_BOOL_NOT: + case BC_LEX_LPAREN: + case XC_LEX_NAME: + case XC_LEX_NUMBER: + case BC_LEX_KEY_IBASE: + case BC_LEX_KEY_LAST: + case BC_LEX_KEY_LENGTH: + case BC_LEX_KEY_OBASE: + case BC_LEX_KEY_READ: + case BC_LEX_KEY_SCALE: + case BC_LEX_KEY_SQRT: + s = zbc_parse_expr(BC_PARSE_PRINT); + break; + case XC_LEX_STR: + s = zbc_parse_pushSTR(); + bc_parse_push(XC_INST_PRINT_STR); + break; + case BC_LEX_KEY_BREAK: + case BC_LEX_KEY_CONTINUE: + s = zbc_parse_break_or_continue(p->lex); + break; + case BC_LEX_KEY_FOR: + s = zbc_parse_for(); + break; + case BC_LEX_KEY_HALT: + bc_parse_push(BC_INST_HALT); + s = zbc_lex_next(); + break; + case BC_LEX_KEY_IF: + s = zbc_parse_if(); + break; + case BC_LEX_KEY_LIMITS: + // "limits" is a compile-time command, + // the output is produced at _parse time_. + printf( + "BC_BASE_MAX = "BC_MAX_OBASE_STR "\n" + "BC_DIM_MAX = "BC_MAX_DIM_STR "\n" + "BC_SCALE_MAX = "BC_MAX_SCALE_STR "\n" + "BC_STRING_MAX = "BC_MAX_STRING_STR"\n" + "BC_NAME_MAX = "BC_MAX_NAME_STR "\n" + "BC_NUM_MAX = "BC_MAX_NUM_STR "\n" + "MAX Exponent = "BC_MAX_EXP_STR "\n" + "Number of vars = "BC_MAX_VARS_STR "\n" + ); + s = zbc_lex_next(); + break; + case BC_LEX_KEY_PRINT: + s = zbc_parse_print(); + break; + case BC_LEX_KEY_QUIT: + // "quit" is a compile-time command. For example, + // "if (0 == 1) quit" terminates when parsing the statement, + // not when it is executed + QUIT_OR_RETURN_TO_MAIN; + case BC_LEX_KEY_RETURN: + if (!p->in_funcdef) + RETURN_STATUS(bc_error("'return' not in a function")); + s = zbc_parse_return(); + break; + case BC_LEX_KEY_WHILE: + s = zbc_parse_while(); + break; + default: + s = bc_error_bad_token(); + break; } dbg_lex_done("%s:%d done", __func__, __LINE__); @@ -4612,162 +4611,162 @@ static BcStatus bc_parse_expr_empty_ok(uint8_t flags) get_token = false; s = BC_STATUS_SUCCESS; switch (t) { - case BC_LEX_OP_INC: - case BC_LEX_OP_DEC: - dbg_lex("%s:%d LEX_OP_INC/DEC", __func__, __LINE__); - s = zbc_parse_incdec(&prev, &paren_expr, &nexprs, flags); - rprn = bin_last = false; - //get_token = false; - already is - break; - case XC_LEX_OP_MINUS: - dbg_lex("%s:%d LEX_OP_MINUS", __func__, __LINE__); - s = zbc_parse_minus(&prev, ops_bgn, rprn, &nexprs); - rprn = false; - //get_token = false; - already is - bin_last = (prev == XC_INST_MINUS); - break; - case BC_LEX_OP_ASSIGN_POWER: - case BC_LEX_OP_ASSIGN_MULTIPLY: - case BC_LEX_OP_ASSIGN_DIVIDE: - case BC_LEX_OP_ASSIGN_MODULUS: - case BC_LEX_OP_ASSIGN_PLUS: - case BC_LEX_OP_ASSIGN_MINUS: - case BC_LEX_OP_ASSIGN: - dbg_lex("%s:%d LEX_ASSIGNxyz", __func__, __LINE__); - if (prev != XC_INST_VAR && prev != XC_INST_ARRAY_ELEM - && prev != XC_INST_SCALE && prev != XC_INST_IBASE - && prev != XC_INST_OBASE && prev != BC_INST_LAST - ) { - return bc_error("bad assignment:" - " left side must be variable" - " or array element" - ); // note: shared string - } - // Fallthrough. - case XC_LEX_OP_POWER: - case XC_LEX_OP_MULTIPLY: - case XC_LEX_OP_DIVIDE: - case XC_LEX_OP_MODULUS: - case XC_LEX_OP_PLUS: - case XC_LEX_OP_REL_EQ: - case XC_LEX_OP_REL_LE: - case XC_LEX_OP_REL_GE: - case XC_LEX_OP_REL_NE: - case XC_LEX_OP_REL_LT: - case XC_LEX_OP_REL_GT: - case BC_LEX_OP_BOOL_NOT: - case BC_LEX_OP_BOOL_OR: - case BC_LEX_OP_BOOL_AND: - dbg_lex("%s:%d LEX_OP_xyz", __func__, __LINE__); - if (((t == BC_LEX_OP_BOOL_NOT) != bin_last) - || (t != BC_LEX_OP_BOOL_NOT && prev == XC_INST_BOOL_NOT) - ) { - return bc_error_bad_expression(); - } - nrelops += (t >= XC_LEX_OP_REL_EQ && t <= XC_LEX_OP_REL_GT); - prev = BC_TOKEN_2_INST(t); - bc_parse_operator(t, ops_bgn, &nexprs); - s = zbc_lex_next(); - rprn = false; - //get_token = false; - already is - bin_last = (t != BC_LEX_OP_BOOL_NOT); - break; - case BC_LEX_LPAREN: - dbg_lex("%s:%d LEX_LPAREN", __func__, __LINE__); - if (BC_PARSE_LEAF(prev, rprn)) - return bc_error_bad_expression(); - bc_vec_push(&p->ops, &t); - nparens++; - get_token = true; - paren_expr = false; - rprn = bin_last = false; - break; - case BC_LEX_RPAREN: - dbg_lex("%s:%d LEX_RPAREN", __func__, __LINE__); - if (bin_last || prev == XC_INST_BOOL_NOT) - return bc_error_bad_expression(); - if (nparens == 0) { - goto exit_loop; - } - if (!paren_expr) { - dbg_lex_done("%s:%d done (returning EMPTY_EXP)", __func__, __LINE__); - return BC_STATUS_PARSE_EMPTY_EXP; - } - s = zbc_parse_rightParen(ops_bgn, &nexprs); - nparens--; - get_token = true; - paren_expr = rprn = true; - bin_last = false; - break; - case XC_LEX_NAME: - dbg_lex("%s:%d LEX_NAME", __func__, __LINE__); - if (BC_PARSE_LEAF(prev, rprn)) - return bc_error_bad_expression(); - s = zbc_parse_name(&prev, flags & ~BC_PARSE_NOCALL); - paren_expr = true; - rprn = bin_last = false; - //get_token = false; - already is - nexprs++; - break; - case XC_LEX_NUMBER: - dbg_lex("%s:%d LEX_NUMBER", __func__, __LINE__); - if (BC_PARSE_LEAF(prev, rprn)) - return bc_error_bad_expression(); - bc_parse_pushNUM(); - prev = XC_INST_NUM; - get_token = true; - paren_expr = true; - rprn = bin_last = false; - nexprs++; - break; - case BC_LEX_KEY_IBASE: - case BC_LEX_KEY_LAST: - case BC_LEX_KEY_OBASE: - dbg_lex("%s:%d LEX_IBASE/LAST/OBASE", __func__, __LINE__); - if (BC_PARSE_LEAF(prev, rprn)) - return bc_error_bad_expression(); - prev = (char) (t - BC_LEX_KEY_IBASE + XC_INST_IBASE); - bc_parse_push((char) prev); - get_token = true; - paren_expr = true; - rprn = bin_last = false; - nexprs++; - break; - case BC_LEX_KEY_LENGTH: - case BC_LEX_KEY_SQRT: - dbg_lex("%s:%d LEX_LEN/SQRT", __func__, __LINE__); - if (BC_PARSE_LEAF(prev, rprn)) - return bc_error_bad_expression(); - s = zbc_parse_builtin(t, flags, &prev); - get_token = true; - paren_expr = true; - rprn = bin_last = false; - nexprs++; - break; - case BC_LEX_KEY_READ: - dbg_lex("%s:%d LEX_READ", __func__, __LINE__); - if (BC_PARSE_LEAF(prev, rprn)) - return bc_error_bad_expression(); - s = zbc_parse_read(); - prev = XC_INST_READ; - get_token = true; - paren_expr = true; - rprn = bin_last = false; - nexprs++; - break; - case BC_LEX_KEY_SCALE: - dbg_lex("%s:%d LEX_SCALE", __func__, __LINE__); - if (BC_PARSE_LEAF(prev, rprn)) - return bc_error_bad_expression(); - s = zbc_parse_scale(&prev, flags); - prev = XC_INST_SCALE; - //get_token = false; - already is - paren_expr = true; - rprn = bin_last = false; - nexprs++; - break; - default: - return bc_error_bad_token(); + case BC_LEX_OP_INC: + case BC_LEX_OP_DEC: + dbg_lex("%s:%d LEX_OP_INC/DEC", __func__, __LINE__); + s = zbc_parse_incdec(&prev, &paren_expr, &nexprs, flags); + rprn = bin_last = false; + //get_token = false; - already is + break; + case XC_LEX_OP_MINUS: + dbg_lex("%s:%d LEX_OP_MINUS", __func__, __LINE__); + s = zbc_parse_minus(&prev, ops_bgn, rprn, &nexprs); + rprn = false; + //get_token = false; - already is + bin_last = (prev == XC_INST_MINUS); + break; + case BC_LEX_OP_ASSIGN_POWER: + case BC_LEX_OP_ASSIGN_MULTIPLY: + case BC_LEX_OP_ASSIGN_DIVIDE: + case BC_LEX_OP_ASSIGN_MODULUS: + case BC_LEX_OP_ASSIGN_PLUS: + case BC_LEX_OP_ASSIGN_MINUS: + case BC_LEX_OP_ASSIGN: + dbg_lex("%s:%d LEX_ASSIGNxyz", __func__, __LINE__); + if (prev != XC_INST_VAR && prev != XC_INST_ARRAY_ELEM + && prev != XC_INST_SCALE && prev != XC_INST_IBASE + && prev != XC_INST_OBASE && prev != BC_INST_LAST + ) { + return bc_error("bad assignment:" + " left side must be variable" + " or array element" + ); // note: shared string + } + // Fallthrough. + case XC_LEX_OP_POWER: + case XC_LEX_OP_MULTIPLY: + case XC_LEX_OP_DIVIDE: + case XC_LEX_OP_MODULUS: + case XC_LEX_OP_PLUS: + case XC_LEX_OP_REL_EQ: + case XC_LEX_OP_REL_LE: + case XC_LEX_OP_REL_GE: + case XC_LEX_OP_REL_NE: + case XC_LEX_OP_REL_LT: + case XC_LEX_OP_REL_GT: + case BC_LEX_OP_BOOL_NOT: + case BC_LEX_OP_BOOL_OR: + case BC_LEX_OP_BOOL_AND: + dbg_lex("%s:%d LEX_OP_xyz", __func__, __LINE__); + if (((t == BC_LEX_OP_BOOL_NOT) != bin_last) + || (t != BC_LEX_OP_BOOL_NOT && prev == XC_INST_BOOL_NOT) + ) { + return bc_error_bad_expression(); + } + nrelops += (t >= XC_LEX_OP_REL_EQ && t <= XC_LEX_OP_REL_GT); + prev = BC_TOKEN_2_INST(t); + bc_parse_operator(t, ops_bgn, &nexprs); + s = zbc_lex_next(); + rprn = false; + //get_token = false; - already is + bin_last = (t != BC_LEX_OP_BOOL_NOT); + break; + case BC_LEX_LPAREN: + dbg_lex("%s:%d LEX_LPAREN", __func__, __LINE__); + if (BC_PARSE_LEAF(prev, rprn)) + return bc_error_bad_expression(); + bc_vec_push(&p->ops, &t); + nparens++; + get_token = true; + paren_expr = false; + rprn = bin_last = false; + break; + case BC_LEX_RPAREN: + dbg_lex("%s:%d LEX_RPAREN", __func__, __LINE__); + if (bin_last || prev == XC_INST_BOOL_NOT) + return bc_error_bad_expression(); + if (nparens == 0) { + goto exit_loop; + } + if (!paren_expr) { + dbg_lex_done("%s:%d done (returning EMPTY_EXP)", __func__, __LINE__); + return BC_STATUS_PARSE_EMPTY_EXP; + } + s = zbc_parse_rightParen(ops_bgn, &nexprs); + nparens--; + get_token = true; + paren_expr = rprn = true; + bin_last = false; + break; + case XC_LEX_NAME: + dbg_lex("%s:%d LEX_NAME", __func__, __LINE__); + if (BC_PARSE_LEAF(prev, rprn)) + return bc_error_bad_expression(); + s = zbc_parse_name(&prev, flags & ~BC_PARSE_NOCALL); + paren_expr = true; + rprn = bin_last = false; + //get_token = false; - already is + nexprs++; + break; + case XC_LEX_NUMBER: + dbg_lex("%s:%d LEX_NUMBER", __func__, __LINE__); + if (BC_PARSE_LEAF(prev, rprn)) + return bc_error_bad_expression(); + bc_parse_pushNUM(); + prev = XC_INST_NUM; + get_token = true; + paren_expr = true; + rprn = bin_last = false; + nexprs++; + break; + case BC_LEX_KEY_IBASE: + case BC_LEX_KEY_LAST: + case BC_LEX_KEY_OBASE: + dbg_lex("%s:%d LEX_IBASE/LAST/OBASE", __func__, __LINE__); + if (BC_PARSE_LEAF(prev, rprn)) + return bc_error_bad_expression(); + prev = (char) (t - BC_LEX_KEY_IBASE + XC_INST_IBASE); + bc_parse_push((char) prev); + get_token = true; + paren_expr = true; + rprn = bin_last = false; + nexprs++; + break; + case BC_LEX_KEY_LENGTH: + case BC_LEX_KEY_SQRT: + dbg_lex("%s:%d LEX_LEN/SQRT", __func__, __LINE__); + if (BC_PARSE_LEAF(prev, rprn)) + return bc_error_bad_expression(); + s = zbc_parse_builtin(t, flags, &prev); + get_token = true; + paren_expr = true; + rprn = bin_last = false; + nexprs++; + break; + case BC_LEX_KEY_READ: + dbg_lex("%s:%d LEX_READ", __func__, __LINE__); + if (BC_PARSE_LEAF(prev, rprn)) + return bc_error_bad_expression(); + s = zbc_parse_read(); + prev = XC_INST_READ; + get_token = true; + paren_expr = true; + rprn = bin_last = false; + nexprs++; + break; + case BC_LEX_KEY_SCALE: + dbg_lex("%s:%d LEX_SCALE", __func__, __LINE__); + if (BC_PARSE_LEAF(prev, rprn)) + return bc_error_bad_expression(); + s = zbc_parse_scale(&prev, flags); + prev = XC_INST_SCALE; + //get_token = false; - already is + paren_expr = true; + rprn = bin_last = false; + nexprs++; + break; + default: + return bc_error_bad_token(); } if (s || G_interrupt) // error, or ^C: stop parsing @@ -4913,65 +4912,65 @@ static BC_STATUS zdc_parse_token(BcLexType t) s = BC_STATUS_SUCCESS; get_token = true; switch (t) { - case XC_LEX_OP_REL_EQ: - case XC_LEX_OP_REL_LE: - case XC_LEX_OP_REL_GE: - case XC_LEX_OP_REL_NE: - case XC_LEX_OP_REL_LT: - case XC_LEX_OP_REL_GT: - dbg_lex("%s:%d LEX_OP_REL_xyz", __func__, __LINE__); - s = zdc_parse_cond(t - XC_LEX_OP_REL_EQ + XC_INST_REL_EQ); - get_token = false; - break; - case DC_LEX_SCOLON: - case DC_LEX_COLON: - dbg_lex("%s:%d LEX_[S]COLON", __func__, __LINE__); - s = zdc_parse_mem(XC_INST_ARRAY_ELEM, true, t == DC_LEX_COLON); - break; - case XC_LEX_STR: - dbg_lex("%s:%d LEX_STR", __func__, __LINE__); - dc_parse_string(); - break; - case XC_LEX_NEG: - dbg_lex("%s:%d LEX_NEG", __func__, __LINE__); - s = zbc_lex_next(); - if (s) RETURN_STATUS(s); - if (G.prs.lex != XC_LEX_NUMBER) - RETURN_STATUS(bc_error_bad_token()); - bc_parse_pushNUM(); - bc_parse_push(XC_INST_NEG); - break; - case XC_LEX_NUMBER: - dbg_lex("%s:%d LEX_NUMBER", __func__, __LINE__); - bc_parse_pushNUM(); - break; - case DC_LEX_READ: - dbg_lex("%s:%d LEX_KEY_READ", __func__, __LINE__); - bc_parse_push(XC_INST_READ); - break; - case DC_LEX_OP_ASSIGN: - case DC_LEX_STORE_PUSH: - dbg_lex("%s:%d LEX_OP_ASSIGN/STORE_PUSH", __func__, __LINE__); - assign = (t == DC_LEX_OP_ASSIGN); - inst = assign ? XC_INST_VAR : DC_INST_PUSH_TO_VAR; - s = zdc_parse_mem(inst, true, assign); - break; - case DC_LEX_LOAD: - case DC_LEX_LOAD_POP: - dbg_lex("%s:%d LEX_OP_LOAD[_POP]", __func__, __LINE__); - inst = t == DC_LEX_LOAD_POP ? DC_INST_PUSH_VAR : DC_INST_LOAD; - s = zdc_parse_mem(inst, true, false); - break; - case DC_LEX_STORE_IBASE: - case DC_LEX_STORE_SCALE: - case DC_LEX_STORE_OBASE: - dbg_lex("%s:%d LEX_OP_STORE_I/OBASE/SCALE", __func__, __LINE__); - inst = t - DC_LEX_STORE_IBASE + XC_INST_IBASE; - s = zdc_parse_mem(inst, false, true); - break; - default: - dbg_lex_done("%s:%d done (bad token)", __func__, __LINE__); + case XC_LEX_OP_REL_EQ: + case XC_LEX_OP_REL_LE: + case XC_LEX_OP_REL_GE: + case XC_LEX_OP_REL_NE: + case XC_LEX_OP_REL_LT: + case XC_LEX_OP_REL_GT: + dbg_lex("%s:%d LEX_OP_REL_xyz", __func__, __LINE__); + s = zdc_parse_cond(t - XC_LEX_OP_REL_EQ + XC_INST_REL_EQ); + get_token = false; + break; + case DC_LEX_SCOLON: + case DC_LEX_COLON: + dbg_lex("%s:%d LEX_[S]COLON", __func__, __LINE__); + s = zdc_parse_mem(XC_INST_ARRAY_ELEM, true, t == DC_LEX_COLON); + break; + case XC_LEX_STR: + dbg_lex("%s:%d LEX_STR", __func__, __LINE__); + dc_parse_string(); + break; + case XC_LEX_NEG: + dbg_lex("%s:%d LEX_NEG", __func__, __LINE__); + s = zbc_lex_next(); + if (s) RETURN_STATUS(s); + if (G.prs.lex != XC_LEX_NUMBER) RETURN_STATUS(bc_error_bad_token()); + bc_parse_pushNUM(); + bc_parse_push(XC_INST_NEG); + break; + case XC_LEX_NUMBER: + dbg_lex("%s:%d LEX_NUMBER", __func__, __LINE__); + bc_parse_pushNUM(); + break; + case DC_LEX_READ: + dbg_lex("%s:%d LEX_KEY_READ", __func__, __LINE__); + bc_parse_push(XC_INST_READ); + break; + case DC_LEX_OP_ASSIGN: + case DC_LEX_STORE_PUSH: + dbg_lex("%s:%d LEX_OP_ASSIGN/STORE_PUSH", __func__, __LINE__); + assign = (t == DC_LEX_OP_ASSIGN); + inst = assign ? XC_INST_VAR : DC_INST_PUSH_TO_VAR; + s = zdc_parse_mem(inst, true, assign); + break; + case DC_LEX_LOAD: + case DC_LEX_LOAD_POP: + dbg_lex("%s:%d LEX_OP_LOAD[_POP]", __func__, __LINE__); + inst = t == DC_LEX_LOAD_POP ? DC_INST_PUSH_VAR : DC_INST_LOAD; + s = zdc_parse_mem(inst, true, false); + break; + case DC_LEX_STORE_IBASE: + case DC_LEX_STORE_SCALE: + case DC_LEX_STORE_OBASE: + dbg_lex("%s:%d LEX_OP_STORE_I/OBASE/SCALE", __func__, __LINE__); + inst = t - DC_LEX_STORE_IBASE + XC_INST_IBASE; + s = zdc_parse_mem(inst, false, true); + break; + default: + dbg_lex_done("%s:%d done (bad token)", __func__, __LINE__); + RETURN_STATUS(bc_error_bad_token()); } if (!s && get_token) s = zbc_lex_next(); @@ -5050,62 +5049,62 @@ static BcVec* bc_program_search(char *id, bool var) static BC_STATUS zbc_program_num(BcResult *r, BcNum **num, bool hex) { switch (r->t) { - case XC_RESULT_STR: - case XC_RESULT_TEMP: - case XC_RESULT_IBASE: - case XC_RESULT_SCALE: - case XC_RESULT_OBASE: - *num = &r->d.n; - break; - case XC_RESULT_CONSTANT: { - BcStatus s; - char *str; - unsigned base_t; - size_t len; - - str = *bc_program_const(r->d.id.idx); - len = strlen(str); - - bc_num_init(&r->d.n, len); - - hex = hex && len == 1; - base_t = hex ? 16 : G.prog.ib_t; - s = zbc_num_parse(&r->d.n, str, base_t); - if (s) { - bc_num_free(&r->d.n); - RETURN_STATUS(s); - } - *num = &r->d.n; - r->t = XC_RESULT_TEMP; - break; - } - case XC_RESULT_VAR: - case XC_RESULT_ARRAY: - case XC_RESULT_ARRAY_ELEM: { - BcVec *v; + case XC_RESULT_STR: + case XC_RESULT_TEMP: + case XC_RESULT_IBASE: + case XC_RESULT_SCALE: + case XC_RESULT_OBASE: + *num = &r->d.n; + break; + case XC_RESULT_CONSTANT: { + BcStatus s; + char *str; + unsigned base_t; + size_t len; - v = bc_program_search(r->d.id.name, r->t == XC_RESULT_VAR); + str = *bc_program_const(r->d.id.idx); + len = strlen(str); - if (r->t == XC_RESULT_ARRAY_ELEM) { - v = bc_vec_top(v); - if (v->len <= r->d.id.idx) bc_array_expand(v, r->d.id.idx + 1); - *num = bc_vec_item(v, r->d.id.idx); - } else - *num = bc_vec_top(v); - break; + bc_num_init(&r->d.n, len); + + hex = hex && len == 1; + base_t = hex ? 16 : G.prog.ib_t; + s = zbc_num_parse(&r->d.n, str, base_t); + if (s) { + bc_num_free(&r->d.n); + RETURN_STATUS(s); } + *num = &r->d.n; + r->t = XC_RESULT_TEMP; + break; + } + case XC_RESULT_VAR: + case XC_RESULT_ARRAY: + case XC_RESULT_ARRAY_ELEM: { + BcVec *v; + + v = bc_program_search(r->d.id.name, r->t == XC_RESULT_VAR); + + if (r->t == XC_RESULT_ARRAY_ELEM) { + v = bc_vec_top(v); + if (v->len <= r->d.id.idx) bc_array_expand(v, r->d.id.idx + 1); + *num = bc_vec_item(v, r->d.id.idx); + } else + *num = bc_vec_top(v); + break; + } #if ENABLE_BC - case BC_RESULT_LAST: - *num = &G.prog.last; - break; - case BC_RESULT_ONE: - *num = &G.prog.one; - break; + case BC_RESULT_LAST: + *num = &G.prog.last; + break; + case BC_RESULT_ONE: + *num = &G.prog.one; + break; #endif #if SANITY_CHECKS - default: - // Testing the theory that dc does not reach LAST/ONE - bb_error_msg_and_die("BUG:%d", r->t); + default: + // Testing the theory that dc does not reach LAST/ONE + bb_error_msg_and_die("BUG:%d", r->t); #endif } @@ -6422,245 +6421,245 @@ static BC_STATUS zbc_program_exec(void) dbg_exec("inst at %zd:%d results.len:%d", ip->inst_idx - 1, inst, G.prog.results.len); switch (inst) { #if ENABLE_BC - case BC_INST_JUMP_ZERO: { - BcNum *num; - bool zero; - dbg_exec("BC_INST_JUMP_ZERO:"); - s = zbc_program_prep(&ptr, &num); - if (s) RETURN_STATUS(s); - zero = (bc_num_cmp(num, &G.prog.zero) == 0); - bc_vec_pop(&G.prog.results); - if (!zero) { - bc_program_index(code, &ip->inst_idx); - break; - } - // else: fall through - } - case BC_INST_JUMP: { - size_t idx = bc_program_index(code, &ip->inst_idx); - size_t *addr = bc_vec_item(&func->labels, idx); - dbg_exec("BC_INST_JUMP: to %ld", (long)*addr); - ip->inst_idx = *addr; + case BC_INST_JUMP_ZERO: { + BcNum *num; + bool zero; + dbg_exec("BC_INST_JUMP_ZERO:"); + s = zbc_program_prep(&ptr, &num); + if (s) RETURN_STATUS(s); + zero = (bc_num_cmp(num, &G.prog.zero) == 0); + bc_vec_pop(&G.prog.results); + if (!zero) { + bc_program_index(code, &ip->inst_idx); break; } - case BC_INST_CALL: - dbg_exec("BC_INST_CALL:"); - s = zbc_program_call(code, &ip->inst_idx); - goto read_updated_ip; - case BC_INST_INC_PRE: - case BC_INST_DEC_PRE: - case BC_INST_INC_POST: - case BC_INST_DEC_POST: - dbg_exec("BC_INST_INCDEC:"); - s = zbc_program_incdec(inst); - break; - case BC_INST_HALT: - dbg_exec("BC_INST_HALT:"); - QUIT_OR_RETURN_TO_MAIN; - break; - case XC_INST_RET: - case BC_INST_RET0: - dbg_exec("BC_INST_RET[0]:"); - s = zbc_program_return(inst); - goto read_updated_ip; - case XC_INST_BOOL_OR: - case XC_INST_BOOL_AND: + // else: fall through + } + case BC_INST_JUMP: { + size_t idx = bc_program_index(code, &ip->inst_idx); + size_t *addr = bc_vec_item(&func->labels, idx); + dbg_exec("BC_INST_JUMP: to %ld", (long)*addr); + ip->inst_idx = *addr; + break; + } + case BC_INST_CALL: + dbg_exec("BC_INST_CALL:"); + s = zbc_program_call(code, &ip->inst_idx); + goto read_updated_ip; + case BC_INST_INC_PRE: + case BC_INST_DEC_PRE: + case BC_INST_INC_POST: + case BC_INST_DEC_POST: + dbg_exec("BC_INST_INCDEC:"); + s = zbc_program_incdec(inst); + break; + case BC_INST_HALT: + dbg_exec("BC_INST_HALT:"); + QUIT_OR_RETURN_TO_MAIN; + break; + case XC_INST_RET: + case BC_INST_RET0: + dbg_exec("BC_INST_RET[0]:"); + s = zbc_program_return(inst); + goto read_updated_ip; + case XC_INST_BOOL_OR: + case XC_INST_BOOL_AND: #endif // ENABLE_BC - case XC_INST_REL_EQ: - case XC_INST_REL_LE: - case XC_INST_REL_GE: - case XC_INST_REL_NE: - case XC_INST_REL_LT: - case XC_INST_REL_GT: - dbg_exec("BC_INST_BOOL:"); - s = zbc_program_logical(inst); - break; - case XC_INST_READ: - dbg_exec("XC_INST_READ:"); - s = zbc_program_read(); - goto read_updated_ip; - case XC_INST_VAR: - dbg_exec("XC_INST_VAR:"); - s = zbc_program_pushVar(code, &ip->inst_idx, false, false); - break; - case XC_INST_ARRAY_ELEM: - case XC_INST_ARRAY: - dbg_exec("XC_INST_ARRAY[_ELEM]:"); - s = zbc_program_pushArray(code, &ip->inst_idx, inst); - break; + case XC_INST_REL_EQ: + case XC_INST_REL_LE: + case XC_INST_REL_GE: + case XC_INST_REL_NE: + case XC_INST_REL_LT: + case XC_INST_REL_GT: + dbg_exec("BC_INST_BOOL:"); + s = zbc_program_logical(inst); + break; + case XC_INST_READ: + dbg_exec("XC_INST_READ:"); + s = zbc_program_read(); + goto read_updated_ip; + case XC_INST_VAR: + dbg_exec("XC_INST_VAR:"); + s = zbc_program_pushVar(code, &ip->inst_idx, false, false); + break; + case XC_INST_ARRAY_ELEM: + case XC_INST_ARRAY: + dbg_exec("XC_INST_ARRAY[_ELEM]:"); + s = zbc_program_pushArray(code, &ip->inst_idx, inst); + break; #if ENABLE_BC - case BC_INST_LAST: - dbg_exec("BC_INST_LAST:"); - r.t = BC_RESULT_LAST; - bc_vec_push(&G.prog.results, &r); - break; + case BC_INST_LAST: + dbg_exec("BC_INST_LAST:"); + r.t = BC_RESULT_LAST; + bc_vec_push(&G.prog.results, &r); + break; #endif - case XC_INST_IBASE: - case XC_INST_OBASE: - case XC_INST_SCALE: - dbg_exec("XC_INST_internalvar(%d):", inst - XC_INST_IBASE); - bc_program_pushGlobal(inst); - break; - case XC_INST_SCALE_FUNC: - case XC_INST_LENGTH: - case XC_INST_SQRT: - dbg_exec("BC_INST_builtin:"); - s = zbc_program_builtin(inst); - break; - case XC_INST_NUM: - dbg_exec("XC_INST_NUM:"); - r.t = XC_RESULT_CONSTANT; - r.d.id.idx = bc_program_index(code, &ip->inst_idx); - bc_vec_push(&G.prog.results, &r); - break; - case XC_INST_POP: - dbg_exec("XC_INST_POP:"); - if (!STACK_HAS_MORE_THAN(&G.prog.results, 0)) - s = bc_error_stack_has_too_few_elements(); - else - bc_vec_pop(&G.prog.results); - break; - case XC_INST_PRINT: - case XC_INST_PRINT_POP: - case XC_INST_PRINT_STR: - dbg_exec("XC_INST_PRINTxyz:"); - s = zbc_program_print(inst, 0); - break; - case XC_INST_STR: - dbg_exec("XC_INST_STR:"); - r.t = XC_RESULT_STR; - r.d.id.idx = bc_program_index(code, &ip->inst_idx); - bc_vec_push(&G.prog.results, &r); - break; - case XC_INST_POWER: - case XC_INST_MULTIPLY: - case XC_INST_DIVIDE: - case XC_INST_MODULUS: - case XC_INST_PLUS: - case XC_INST_MINUS: - dbg_exec("BC_INST_binaryop:"); - s = zbc_program_op(inst); - break; - case XC_INST_BOOL_NOT: { - BcNum *num; - dbg_exec("XC_INST_BOOL_NOT:"); - s = zbc_program_prep(&ptr, &num); - if (s) RETURN_STATUS(s); - bc_num_init_DEF_SIZE(&r.d.n); - if (bc_num_cmp(num, &G.prog.zero) == 0) - bc_num_one(&r.d.n); - //else bc_num_zero(&r.d.n); - already is - bc_program_retire(&r, XC_RESULT_TEMP); - break; - } - case XC_INST_NEG: - dbg_exec("XC_INST_NEG:"); - s = zbc_program_negate(); - break; + case XC_INST_IBASE: + case XC_INST_OBASE: + case XC_INST_SCALE: + dbg_exec("XC_INST_internalvar(%d):", inst - XC_INST_IBASE); + bc_program_pushGlobal(inst); + break; + case XC_INST_SCALE_FUNC: + case XC_INST_LENGTH: + case XC_INST_SQRT: + dbg_exec("BC_INST_builtin:"); + s = zbc_program_builtin(inst); + break; + case XC_INST_NUM: + dbg_exec("XC_INST_NUM:"); + r.t = XC_RESULT_CONSTANT; + r.d.id.idx = bc_program_index(code, &ip->inst_idx); + bc_vec_push(&G.prog.results, &r); + break; + case XC_INST_POP: + dbg_exec("XC_INST_POP:"); + if (!STACK_HAS_MORE_THAN(&G.prog.results, 0)) + s = bc_error_stack_has_too_few_elements(); + else + bc_vec_pop(&G.prog.results); + break; + case XC_INST_PRINT: + case XC_INST_PRINT_POP: + case XC_INST_PRINT_STR: + dbg_exec("XC_INST_PRINTxyz:"); + s = zbc_program_print(inst, 0); + break; + case XC_INST_STR: + dbg_exec("XC_INST_STR:"); + r.t = XC_RESULT_STR; + r.d.id.idx = bc_program_index(code, &ip->inst_idx); + bc_vec_push(&G.prog.results, &r); + break; + case XC_INST_POWER: + case XC_INST_MULTIPLY: + case XC_INST_DIVIDE: + case XC_INST_MODULUS: + case XC_INST_PLUS: + case XC_INST_MINUS: + dbg_exec("BC_INST_binaryop:"); + s = zbc_program_op(inst); + break; + case XC_INST_BOOL_NOT: { + BcNum *num; + dbg_exec("XC_INST_BOOL_NOT:"); + s = zbc_program_prep(&ptr, &num); + if (s) RETURN_STATUS(s); + bc_num_init_DEF_SIZE(&r.d.n); + if (bc_num_cmp(num, &G.prog.zero) == 0) + bc_num_one(&r.d.n); + //else bc_num_zero(&r.d.n); - already is + bc_program_retire(&r, XC_RESULT_TEMP); + break; + } + case XC_INST_NEG: + dbg_exec("XC_INST_NEG:"); + s = zbc_program_negate(); + break; #if ENABLE_BC - case BC_INST_ASSIGN_POWER: - case BC_INST_ASSIGN_MULTIPLY: - case BC_INST_ASSIGN_DIVIDE: - case BC_INST_ASSIGN_MODULUS: - case BC_INST_ASSIGN_PLUS: - case BC_INST_ASSIGN_MINUS: + case BC_INST_ASSIGN_POWER: + case BC_INST_ASSIGN_MULTIPLY: + case BC_INST_ASSIGN_DIVIDE: + case BC_INST_ASSIGN_MODULUS: + case BC_INST_ASSIGN_PLUS: + case BC_INST_ASSIGN_MINUS: #endif - case XC_INST_ASSIGN: - dbg_exec("BC_INST_ASSIGNxyz:"); - s = zbc_program_assign(inst); - break; + case XC_INST_ASSIGN: + dbg_exec("BC_INST_ASSIGNxyz:"); + s = zbc_program_assign(inst); + break; #if ENABLE_DC - case DC_INST_POP_EXEC: - dbg_exec("DC_INST_POP_EXEC:"); - bc_vec_pop(&G.prog.exestack); - goto read_updated_ip; - case DC_INST_MODEXP: - dbg_exec("DC_INST_MODEXP:"); - s = zdc_program_modexp(); - break; - case DC_INST_DIVMOD: - dbg_exec("DC_INST_DIVMOD:"); - s = zdc_program_divmod(); - break; - case DC_INST_EXECUTE: - case DC_INST_EXEC_COND: - dbg_exec("DC_INST_EXEC[_COND]:"); - s = zdc_program_execStr(code, &ip->inst_idx, inst == DC_INST_EXEC_COND); - goto read_updated_ip; - case DC_INST_PRINT_STACK: { - size_t idx; - dbg_exec("DC_INST_PRINT_STACK:"); - for (idx = 0; idx < G.prog.results.len; ++idx) { - s = zbc_program_print(XC_INST_PRINT, idx); - if (s) break; - } - break; - } - case DC_INST_CLEAR_STACK: - dbg_exec("DC_INST_CLEAR_STACK:"); - bc_vec_pop_all(&G.prog.results); - break; - case DC_INST_STACK_LEN: - dbg_exec("DC_INST_STACK_LEN:"); - dc_program_stackLen(); - break; - case DC_INST_DUPLICATE: - dbg_exec("DC_INST_DUPLICATE:"); - if (!STACK_HAS_MORE_THAN(&G.prog.results, 0)) - RETURN_STATUS(bc_error_stack_has_too_few_elements()); - ptr = bc_vec_top(&G.prog.results); - dc_result_copy(&r, ptr); - bc_vec_push(&G.prog.results, &r); - break; - case DC_INST_SWAP: { - BcResult *ptr2; - dbg_exec("DC_INST_SWAP:"); - if (!STACK_HAS_MORE_THAN(&G.prog.results, 1)) - RETURN_STATUS(bc_error_stack_has_too_few_elements()); - ptr = bc_vec_item_rev(&G.prog.results, 0); - ptr2 = bc_vec_item_rev(&G.prog.results, 1); - memcpy(&r, ptr, sizeof(BcResult)); - memcpy(ptr, ptr2, sizeof(BcResult)); - memcpy(ptr2, &r, sizeof(BcResult)); - break; - } - case DC_INST_ASCIIFY: - dbg_exec("DC_INST_ASCIIFY:"); - s = zdc_program_asciify(); - break; - case DC_INST_PRINT_STREAM: - dbg_exec("DC_INST_PRINT_STREAM:"); - s = zdc_program_printStream(); - break; - case DC_INST_LOAD: - case DC_INST_PUSH_VAR: { - bool copy = inst == DC_INST_LOAD; - s = zbc_program_pushVar(code, &ip->inst_idx, true, copy); - break; - } - case DC_INST_PUSH_TO_VAR: { - char *name = bc_program_name(code, &ip->inst_idx); - s = zbc_program_copyToVar(name, true); - free(name); - break; + case DC_INST_POP_EXEC: + dbg_exec("DC_INST_POP_EXEC:"); + bc_vec_pop(&G.prog.exestack); + goto read_updated_ip; + case DC_INST_MODEXP: + dbg_exec("DC_INST_MODEXP:"); + s = zdc_program_modexp(); + break; + case DC_INST_DIVMOD: + dbg_exec("DC_INST_DIVMOD:"); + s = zdc_program_divmod(); + break; + case DC_INST_EXECUTE: + case DC_INST_EXEC_COND: + dbg_exec("DC_INST_EXEC[_COND]:"); + s = zdc_program_execStr(code, &ip->inst_idx, inst == DC_INST_EXEC_COND); + goto read_updated_ip; + case DC_INST_PRINT_STACK: { + size_t idx; + dbg_exec("DC_INST_PRINT_STACK:"); + for (idx = 0; idx < G.prog.results.len; ++idx) { + s = zbc_program_print(XC_INST_PRINT, idx); + if (s) break; } - case DC_INST_QUIT: - dbg_exec("DC_INST_QUIT:"); - if (G.prog.exestack.len <= 2) - QUIT_OR_RETURN_TO_MAIN; - bc_vec_npop(&G.prog.exestack, 2); - goto read_updated_ip; - case DC_INST_NQUIT: - dbg_exec("DC_INST_NQUIT:"); - s = zdc_program_nquit(); - //goto read_updated_ip; - just fall through to it + break; + } + case DC_INST_CLEAR_STACK: + dbg_exec("DC_INST_CLEAR_STACK:"); + bc_vec_pop_all(&G.prog.results); + break; + case DC_INST_STACK_LEN: + dbg_exec("DC_INST_STACK_LEN:"); + dc_program_stackLen(); + break; + case DC_INST_DUPLICATE: + dbg_exec("DC_INST_DUPLICATE:"); + if (!STACK_HAS_MORE_THAN(&G.prog.results, 0)) + RETURN_STATUS(bc_error_stack_has_too_few_elements()); + ptr = bc_vec_top(&G.prog.results); + dc_result_copy(&r, ptr); + bc_vec_push(&G.prog.results, &r); + break; + case DC_INST_SWAP: { + BcResult *ptr2; + dbg_exec("DC_INST_SWAP:"); + if (!STACK_HAS_MORE_THAN(&G.prog.results, 1)) + RETURN_STATUS(bc_error_stack_has_too_few_elements()); + ptr = bc_vec_item_rev(&G.prog.results, 0); + ptr2 = bc_vec_item_rev(&G.prog.results, 1); + memcpy(&r, ptr, sizeof(BcResult)); + memcpy(ptr, ptr2, sizeof(BcResult)); + memcpy(ptr2, &r, sizeof(BcResult)); + break; + } + case DC_INST_ASCIIFY: + dbg_exec("DC_INST_ASCIIFY:"); + s = zdc_program_asciify(); + break; + case DC_INST_PRINT_STREAM: + dbg_exec("DC_INST_PRINT_STREAM:"); + s = zdc_program_printStream(); + break; + case DC_INST_LOAD: + case DC_INST_PUSH_VAR: { + bool copy = inst == DC_INST_LOAD; + s = zbc_program_pushVar(code, &ip->inst_idx, true, copy); + break; + } + case DC_INST_PUSH_TO_VAR: { + char *name = bc_program_name(code, &ip->inst_idx); + s = zbc_program_copyToVar(name, true); + free(name); + break; + } + case DC_INST_QUIT: + dbg_exec("DC_INST_QUIT:"); + if (G.prog.exestack.len <= 2) + QUIT_OR_RETURN_TO_MAIN; + bc_vec_npop(&G.prog.exestack, 2); + goto read_updated_ip; + case DC_INST_NQUIT: + dbg_exec("DC_INST_NQUIT:"); + s = zdc_program_nquit(); + //goto read_updated_ip; - just fall through to it #endif // ENABLE_DC read_updated_ip: - // Instruction stack has changed, read new pointers - ip = bc_vec_top(&G.prog.exestack); - func = bc_program_func(ip->func); - code = func->code.v; - dbg_exec("func:%zd bytes:%zd ip:%zd", ip->func, func->code.len, ip->inst_idx); + // Instruction stack has changed, read new pointers + ip = bc_vec_top(&G.prog.exestack); + func = bc_program_func(ip->func); + code = func->code.v; + dbg_exec("func:%zd bytes:%zd ip:%zd", ip->func, func->code.len, ip->inst_idx); } if (s || G_interrupt) { |