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| author | Aryadev Chavali <aryadev@aryadevchavali.com> | 2023-11-01 22:56:40 +0000 |
|---|---|---|
| committer | Aryadev Chavali <aryadev@aryadevchavali.com> | 2023-11-01 22:56:40 +0000 |
| commit | 740627b12dc33aec2753363a3f5bebf10db07cb5 (patch) | |
| tree | f2e4d394373e47daebe74496112e21ba2fe99b17 /asm | |
| parent | ac3270777b3f9a13bb94c99e9fad041775d3f070 (diff) | |
| download | ovm-740627b12dc33aec2753363a3f5bebf10db07cb5.tar.gz ovm-740627b12dc33aec2753363a3f5bebf10db07cb5.tar.bz2 ovm-740627b12dc33aec2753363a3f5bebf10db07cb5.zip | |
Implemented MALLOC_STACK and SUB in the assembler
Diffstat (limited to 'asm')
| -rw-r--r-- | asm/lexer.c | 16 | ||||
| -rw-r--r-- | asm/lexer.h | 2 | ||||
| -rw-r--r-- | asm/parser.c | 6 |
3 files changed, 23 insertions, 1 deletions
diff --git a/asm/lexer.c b/asm/lexer.c index dfc4976..0a8a97e 100644 --- a/asm/lexer.c +++ b/asm/lexer.c @@ -44,6 +44,8 @@ const char *token_type_as_cstr(token_type_t type) return "DUP"; case TOKEN_MALLOC: return "MALLOC"; + case TOKEN_MALLOC_STACK: + return "MALLOC_STACK"; case TOKEN_MSET: return "MSET"; case TOKEN_MSET_STACK: @@ -76,6 +78,8 @@ const char *token_type_as_cstr(token_type_t type) return "GTE"; case TOKEN_PLUS: return "PLUS"; + case TOKEN_SUB: + return "SUB"; case TOKEN_MULT: return "MULT"; case TOKEN_PRINT: @@ -131,7 +135,7 @@ bool is_valid_hex_char(char c) token_t tokenise_symbol(buffer_t *buffer, size_t *column) { - static_assert(NUMBER_OF_OPCODES == 90, "tokenise_buffer: Out of date!"); + static_assert(NUMBER_OF_OPCODES == 96, "tokenise_buffer: Out of date!"); size_t sym_size = 0; for (; sym_size < space_left(buffer) && @@ -182,6 +186,11 @@ token_t tokenise_symbol(buffer_t *buffer, size_t *column) offset = 3; type = TOKEN_DUP; } + else if (sym_size >= 12 && strncmp(opcode, "MALLOC.STACK", 12) == 0) + { + offset = 12; + type = TOKEN_MALLOC_STACK; + } else if (sym_size >= 6 && strncmp(opcode, "MALLOC", 6) == 0) { offset = 6; @@ -262,6 +271,11 @@ token_t tokenise_symbol(buffer_t *buffer, size_t *column) offset = 2; type = TOKEN_GT; } + else if (sym_size >= 3 && strncmp(opcode, "SUB", 3) == 0) + { + offset = 3; + type = TOKEN_SUB; + } else if (sym_size >= 4 && strncmp(opcode, "PLUS", 4) == 0) { offset = 4; diff --git a/asm/lexer.h b/asm/lexer.h index e8897b6..6b17b04 100644 --- a/asm/lexer.h +++ b/asm/lexer.h @@ -27,6 +27,7 @@ typedef enum TokenType TOKEN_MOV, TOKEN_DUP, TOKEN_MALLOC, + TOKEN_MALLOC_STACK, TOKEN_MSET, TOKEN_MSET_STACK, TOKEN_MGET, @@ -43,6 +44,7 @@ typedef enum TokenType TOKEN_GT, TOKEN_GTE, TOKEN_PLUS, + TOKEN_SUB, TOKEN_MULT, TOKEN_PRINT, TOKEN_JUMP, diff --git a/asm/parser.c b/asm/parser.c index 4b5eee1..08e067c 100644 --- a/asm/parser.c +++ b/asm/parser.c @@ -230,6 +230,9 @@ perr_t parse_next_inst(token_stream_t *stream, inst_t *ret) case TOKEN_MGET: ret->opcode = OP_MGET_BYTE; return parse_utype_inst_with_operand(stream, ret); + case TOKEN_MALLOC_STACK: + ret->opcode = OP_MALLOC_STACK_BYTE; + return parse_utype_inst(stream, ret); case TOKEN_MSET_STACK: ret->opcode = OP_MSET_STACK_BYTE; return parse_utype_inst(stream, ret); @@ -272,6 +275,9 @@ perr_t parse_next_inst(token_stream_t *stream, inst_t *ret) case TOKEN_PLUS: ret->opcode = OP_PLUS_BYTE; return parse_utype_inst(stream, ret); + case TOKEN_SUB: + ret->opcode = OP_SUB_BYTE; + return parse_utype_inst(stream, ret); case TOKEN_MULT: ret->opcode = OP_MULT_BYTE; return parse_utype_inst(stream, ret); |