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Added boolean operators to the debugger

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This commit is contained in:
Lior Halphon 2016-07-01 13:12:04 +03:00
parent 70bd90740a
commit 79fd9ed6ad
1 changed files with 21 additions and 2 deletions
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23
Core/debugger.c
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@ -87,6 +87,14 @@ static uint16_t assign(GB_gameboy_t *gb, lvalue_t a, uint16_t b)
return read_lvalue(gb, a);
}
static uint16_t bool_and(uint16_t a, uint16_t b) {return a && b;};
static uint16_t bool_or(uint16_t a, uint16_t b) {return a || b;};
static uint16_t equals(uint16_t a, uint16_t b) {return a == b;};
static uint16_t lower(uint16_t a, uint16_t b) {return a < b;};
static uint16_t greater(uint16_t a, uint16_t b) {return a > b;};
static uint16_t lower_equals(uint16_t a, uint16_t b) {return a <= b;};
static uint16_t greater_equals(uint16_t a, uint16_t b) {return a >= b;};
static struct {
const char *string;
char priority;
@ -98,15 +106,22 @@ static struct {
// Deal with it.
{"+", 0, add},
{"-", 0, sub},
{"||", 0, bool_or},
{"|", 0, or},
{"*", 1, mul},
{"/", 1, _div},
{"%", 1, mod},
{"&&", 1, bool_and},
{"&", 1, and},
{"^", 1, xor},
{"<<", 2, shleft},
{"<=", 3, lower_equals},
{"<", 3, lower},
{">>", 2, shright},
{"=", 2, NULL, assign},
{">=", 3, greater_equals},
{">", 3, greater},
{"==", 3, equals},
{"=", 4, NULL, assign},
};
uint16_t debugger_evaluate(GB_gameboy_t *gb, const char *string, unsigned int length, bool *error);
@ -252,10 +267,14 @@ uint16_t debugger_evaluate(GB_gameboy_t *gb, const char *string, unsigned int le
if (strlen(operators[j].string) > length - i) continue; // Operator too big.
// Priority higher than what we already have.
if (operator_index != -1 && operators[operator_index].priority > operators[j].priority) continue;
if (memcmp(string + i, operators[j].string, strlen(operators[j].string)) == 0) {
unsigned long operator_length = strlen(operators[j].string);
if (memcmp(string + i, operators[j].string, operator_length) == 0) {
// Found an operator!
operator_pos = i;
operator_index = j;
/* for supporting = vs ==, etc*/
i += operator_length - 1;
break;
}
}
}