diff options
Diffstat (limited to 'asm')
| -rw-r--r-- | asm/lexer.c | 21 | ||||
| -rw-r--r-- | asm/lexer.h | 3 | ||||
| -rw-r--r-- | asm/parser.c | 24 |
3 files changed, 25 insertions, 23 deletions
diff --git a/asm/lexer.c b/asm/lexer.c index 836dd08..73859c3 100644 --- a/asm/lexer.c +++ b/asm/lexer.c @@ -86,8 +86,10 @@ const char *token_type_as_cstr(token_type_t type) return "MULT"; case TOKEN_PRINT: return "PRINT"; - case TOKEN_JUMP: - return "JUMP"; + case TOKEN_JUMP_ABS: + return "JUMP_ABS"; + case TOKEN_JUMP_STACK: + return "JUMP_STACK"; case TOKEN_JUMP_IF: return "JUMP_IF"; case TOKEN_SYMBOL: @@ -293,16 +295,21 @@ token_t tokenise_symbol(buffer_t *buffer, size_t *column) offset = 5; type = TOKEN_PRINT; } + else if (sym_size >= 8 && strncmp(opcode, "JUMP.ABS", 8) == 0) + { + offset = 8; + type = TOKEN_JUMP_ABS; + } + else if (sym_size >= 10 && strncmp(opcode, "JUMP.STACK", 10) == 0) + { + offset = 10; + type = TOKEN_JUMP_STACK; + } else if (sym_size >= 7 && strncmp(opcode, "JUMP.IF", 7) == 0) { offset = 7; type = TOKEN_JUMP_IF; } - else if (sym_size >= 4 && strncmp(opcode, "JUMP", 4) == 0) - { - offset = 4; - type = TOKEN_JUMP; - } else is_opcode = false; diff --git a/asm/lexer.h b/asm/lexer.h index 2d747bc..687e1a6 100644 --- a/asm/lexer.h +++ b/asm/lexer.h @@ -48,7 +48,8 @@ typedef enum TokenType TOKEN_SUB, TOKEN_MULT, TOKEN_PRINT, - TOKEN_JUMP, + TOKEN_JUMP_ABS, + TOKEN_JUMP_STACK, TOKEN_JUMP_IF, TOKEN_SYMBOL, } token_type_t; diff --git a/asm/parser.c b/asm/parser.c index da0c93c..44c09b4 100644 --- a/asm/parser.c +++ b/asm/parser.c @@ -404,22 +404,16 @@ perr_t parse_next(token_stream_t *stream, presult_t *ret) .type = PRES_COMPLETE_RESULT}; perr = parse_type_inst(stream, &ret->instruction); break; - case TOKEN_JUMP: { - if (token.str_size == 4 && strncmp(token.str, ".ABS", 4) == 0) - { - *ret = (presult_t){.instruction = INST_JUMP_ABS(0)}; - ++stream->used; - if (stream->used >= stream->available) - return PERR_EXPECTED_OPERAND; - return parse_word_label_or_relative(stream, ret); - } - else if (token.str_size == 6 && strncmp(token.str, ".STACK", 6) == 0) - *ret = (presult_t){.instruction = INST_JUMP_STACK, - .type = PRES_COMPLETE_RESULT}; - else - return PERR_UNKNOWN_OPERATOR; + case TOKEN_JUMP_ABS: + *ret = (presult_t){.instruction = INST_JUMP_ABS(0)}; + ++stream->used; + if (stream->used >= stream->available) + return PERR_EXPECTED_OPERAND; + return parse_word_label_or_relative(stream, ret); + case TOKEN_JUMP_STACK: + *ret = (presult_t){.instruction = INST_JUMP_STACK, + .type = PRES_COMPLETE_RESULT}; break; - } case TOKEN_JUMP_IF: { *ret = (presult_t){.instruction = INST_JUMP_IF(BYTE, 0)}; return parse_jump_inst_operand(stream, ret); |