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73 lines
1.7 KiB
73 lines
1.7 KiB
3 years ago
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#include "allocate.h"
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#include "types.h"
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#define MAX_SCOPE 32
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#define VOID_SIZE 1
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#define CHAR_SIZE 1
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#define INT_SIZE 4
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#define POINTER_SIZE 4
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enum operation{
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operation_none,
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operation_add,
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operation_subtract,
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operation_multiply,
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operation_divide,
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operation_assign,
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operation_less_than,
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operation_greater_than,
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operation_less_than_or_equal,
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operation_greater_than_or_equal,
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operation_equals,
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operation_not_equals,
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operation_and,
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operation_or,
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operation_modulo,
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operation_logical_and,
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operation_logical_or,
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operation_shift_left,
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operation_shift_right
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};
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typedef enum operation operation;
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typedef struct variable variable;
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struct variable{
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char *varname;
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type var_type;
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union{
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unsigned int stack_pos;
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struct{
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unsigned char leave_as_address;
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unsigned int num_args;
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};
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};
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};
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typedef struct value value;
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struct value{
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data_entry data;
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type data_type;
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unsigned char is_reference;
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};
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extern dictionary *local_variables[MAX_SCOPE];
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extern dictionary global_variables;
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void free_local_variables();
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void free_global_variables();
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extern unsigned int num_labels;
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int type_size(type *t, unsigned int start_entry);
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void initialize_variables();
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unsigned int align4(unsigned int size);
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void compile_variable_initializer(char **c);
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void cast(value *v, type t, unsigned char do_warn, FILE *output_file);
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void compile_expression(value *first_value, char **c, unsigned char dereference, unsigned char force_stack, FILE *output_file);
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void compile_root_expression(value *first_value, char **c, unsigned char dereference, unsigned char force_stack, FILE *output_file);
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void reset_stack_pos(value *first_value, FILE *output_file);
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extern int current_scope;
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extern unsigned char do_print;
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