aboutsummaryrefslogtreecommitdiff
path: root/asm
diff options
context:
space:
mode:
Diffstat (limited to 'asm')
-rw-r--r--asm/lexer.c150
-rw-r--r--asm/lexer.h1
-rw-r--r--asm/parser.c4
3 files changed, 13 insertions, 142 deletions
diff --git a/asm/lexer.c b/asm/lexer.c
index a4d9f5a..f0408ad 100644
--- a/asm/lexer.c
+++ b/asm/lexer.c
@@ -62,6 +62,8 @@ const char *token_type_as_cstr(token_type_t type)
return "GTE";
case TOKEN_PLUS:
return "PLUS";
+ case TOKEN_MULT:
+ return "MULT";
case TOKEN_PRINT:
return "PRINT";
case TOKEN_JUMP:
@@ -115,7 +117,7 @@ bool is_valid_hex_char(char c)
token_t tokenise_symbol(buffer_t *buffer, size_t *column)
{
- static_assert(NUMBER_OF_OPCODES == 70, "tokenise_buffer: Out of date!");
+ static_assert(NUMBER_OF_OPCODES == 73, "tokenise_buffer: Out of date!");
size_t sym_size = 0;
for (; sym_size < space_left(buffer) &&
@@ -216,6 +218,11 @@ token_t tokenise_symbol(buffer_t *buffer, size_t *column)
offset = 4;
type = TOKEN_PLUS;
}
+ else if (sym_size >= 4 && strncmp(opcode, "MULT", 4) == 0)
+ {
+ offset = 4;
+ type = TOKEN_MULT;
+ }
else if (sym_size >= 5 && strncmp(opcode, "PRINT", 5) == 0)
{
offset = 5;
@@ -368,146 +375,7 @@ lerr_t tokenise_buffer(buffer_t *buffer, token_stream_t *tokens_ptr)
is_valid_hex_char(buffer->data[buffer->used + 1]))
t = tokenise_hex_literal(buffer, &column);
else if (is_symbol(c))
- {
- static_assert(NUMBER_OF_OPCODES == 70, "tokenise_buffer: Out of date!");
- token_t token = tokenise_symbol(buffer, &column);
- char *opcode = token.str;
-
- bool is_opcode = true;
- token_type_t type = 0;
- size_t offset = 0;
-
- if (token.str_size == 4 && strncmp(opcode, "NOOP", 4) == 0)
- {
- offset = 4;
- type = TOKEN_NOOP;
- }
- else if (token.str_size == 4 && strncmp(opcode, "HALT", 4) == 0)
- {
- offset = 4;
- type = TOKEN_HALT;
- }
- else if (token.str_size >= 8 && strncmp(opcode, "PUSH.REG", 8) == 0)
- {
- offset = 8;
- type = TOKEN_PUSH;
- }
- else if (token.str_size >= 4 && strncmp(opcode, "PUSH", 4) == 0)
- {
- offset = 4;
- type = TOKEN_PUSH;
- }
- else if (token.str_size >= 3 && strncmp(opcode, "POP", 3) == 0)
- {
- offset = 3;
- type = TOKEN_POP;
- }
- else if (token.str_size >= 3 && strncmp(opcode, "MOV", 3) == 0)
- {
- offset = 3;
- type = TOKEN_MOV;
- }
- else if (token.str_size >= 3 && strncmp(opcode, "DUP", 3) == 0)
- {
- offset = 3;
- type = TOKEN_DUP;
- }
- else if (token.str_size >= 3 && strncmp(opcode, "NOT", 3) == 0)
- {
- offset = 3;
- type = TOKEN_NOT;
- }
- else if (token.str_size >= 2 && strncmp(opcode, "OR", 2) == 0)
- {
- offset = 2;
- type = TOKEN_OR;
- }
- else if (token.str_size >= 3 && strncmp(opcode, "AND", 3) == 0)
- {
- offset = 3;
- type = TOKEN_AND;
- }
- else if (token.str_size >= 3 && strncmp(opcode, "XOR", 3) == 0)
- {
- offset = 3;
- type = TOKEN_XOR;
- }
- else if (token.str_size >= 2 && strncmp(opcode, "EQ", 2) == 0)
- {
- offset = 2;
- type = TOKEN_EQ;
- }
- else if (token.str_size >= 3 && strncmp(opcode, "LTE", 3) == 0)
- {
- offset = 3;
- type = TOKEN_LTE;
- }
- else if (token.str_size >= 2 && strncmp(opcode, "LT", 2) == 0)
- {
- offset = 2;
- type = TOKEN_LT;
- }
- else if (token.str_size >= 3 && strncmp(opcode, "GTE", 3) == 0)
- {
- offset = 3;
- type = TOKEN_GTE;
- }
- else if (token.str_size >= 2 && strncmp(opcode, "GT", 2) == 0)
- {
- offset = 2;
- type = TOKEN_GT;
- }
- else if (token.str_size >= 4 && strncmp(opcode, "PLUS", 4) == 0)
- {
- offset = 4;
- type = TOKEN_PLUS;
- }
- else if (token.str_size >= 5 && strncmp(opcode, "PRINT", 5) == 0)
- {
- offset = 5;
- type = TOKEN_PRINT;
- }
- else if (token.str_size >= 1 && strncmp(opcode, "JUMP.IF", 7) == 0)
- {
- offset = 7;
- type = TOKEN_JUMP_IF;
- }
- else if (token.str_size >= 6 && strncmp(opcode, "JUMP", 6) == 0)
- {
- offset = 6;
- type = TOKEN_JUMP;
- }
- else
- {
- is_opcode = false;
- t = token;
- }
-
- if (!is_opcode)
- // Just a symbol, so no further manipulation
- t = token;
- else
- {
- t.type = type;
- t.column = token.column;
- if (offset == token.str_size)
- {
- // There's no more to the string
- t.str = malloc(1);
- t.str[0] = '\0';
- }
- else
- {
- // t.str is the remaining part of the string after the
- // opcode
- t.str = calloc(token.str_size - offset + 1, 1);
- memcpy(t.str, token.str + offset, token.str_size - offset);
- t.str[token.str_size - offset] = '\0';
- }
- t.str_size = token.str_size - offset;
- free(token.str);
- }
- }
+ t = tokenise_symbol(buffer, &column);
else if (c == '\'')
{
if (space_left(buffer) < 2)
diff --git a/asm/lexer.h b/asm/lexer.h
index 78cf4c6..9ae6fcf 100644
--- a/asm/lexer.h
+++ b/asm/lexer.h
@@ -36,6 +36,7 @@ typedef enum TokenType
TOKEN_GT,
TOKEN_GTE,
TOKEN_PLUS,
+ TOKEN_MULT,
TOKEN_PRINT,
TOKEN_JUMP,
TOKEN_JUMP_IF,
diff --git a/asm/parser.c b/asm/parser.c
index a6ddd86..41ffdb9 100644
--- a/asm/parser.c
+++ b/asm/parser.c
@@ -194,7 +194,6 @@ perr_t parse_type_inst_with_operand(token_stream_t *stream, inst_t *ret)
perr_t parse_next_inst(token_stream_t *stream, inst_t *ret)
{
- static_assert(NUMBER_OF_OPCODES == 70, "parse_next_inst: Out of date!");
const token_t token = TOKEN_STREAM_AT(stream->data, stream->used);
switch (token.type)
{
@@ -252,6 +251,9 @@ 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_MULT:
+ ret->opcode = OP_MULT_BYTE;
+ return parse_utype_inst(stream, ret);
case TOKEN_PRINT:
ret->opcode = OP_PRINT_BYTE;
return parse_type_inst(stream, ret);
generated by cgit v1.2.3-13-gbd6f (git 2.30.0) at 2024-12-25 20:11:09 +0000