diff options
Diffstat (limited to 'compiler.c')
| -rw-r--r-- | compiler.c | 59 |
1 files changed, 58 insertions, 1 deletions
@@ -545,6 +545,7 @@ char *_reg_by_id_size(int id, int size, bool address) { vect_push_string(&prefix, "qword "); break; } + size = 8; } if(id > 7) { @@ -599,6 +600,37 @@ char *_reg_by_id_size(int id, int size, bool address) { return vect_as_string(&prefix); } +/// Remember to free! +char *_gen_address(char *prefix, char *base, char *offset, int mult, int add) { + Vector out = vect_init(sizeof(char)); + + vect_push_string(&out, prefix); + vect_push_string(&out, "["); + vect_push_string(&out, base); + + if (offset != NULL && mult > 0) { + vect_push_string(&out, " + "); + vect_push_string(&out, offset); + if(mult > 1) { + vect_push_string(&out, "*"); + char *mstr = int_to_str(mult); + vect_push_string(&out, mstr); + free(mstr); + } + } + + if(add > 0) { + vect_push_string(&out, " + "); + char *astr = int_to_str(add); + vect_push_string(&out, astr); + free(astr); + } + + vect_push_string(&out, "]"); + + return vect_as_string(&out); +} + // Type coercion engine // TODO: all Variable _op_coerce(Variable *base, Variable *to_coerce) { @@ -616,6 +648,15 @@ Variable _op_coerce(Variable *base, Variable *to_coerce) { // with an array => pointer + 8 bytes (length of array at start) + index * size of data // with a pointer => pointer + index * size of data +// Get the last value from ptr_chain +int _var_ptr_type(Variable *v) { + if(v->ptr_chain.count < 1) { + // Return an invalid value if ptr_chain has no values. + return -2; + } + return ((int*)v->ptr_chain.data)[v->ptr_chain.count - 1]; +} + char *_op_get_register(int reg, int size) { Vector out = vect_init(sizeof(char)); char add = 'r'; @@ -678,11 +719,27 @@ void var_swap_register(CompData *out, Variable *swap, int new_reg) { } -void var_op_reference(CompData *out, Variable *store, Variable *from) {} void var_op_dereference(CompData *out, Variable *store, Variable *from) {} void var_op_index(CompData *out, Variable *store, Variable *from, Variable *index) {} void var_op_set(CompData *out, Variable *store, Variable *from) {} + +void var_op_reference(CompData *out, Variable *store, Variable *from) { + if(from->ptr_chain.count > 0 && _var_ptr_type(from) == PTYPE_REF) { + // The value is a reference to data, so we should just copy it + var_op_set(out, store, from); + return; + } + + if(from->location > 0) { + // Can't generate reference if variable is in register + printf("FATAL: (Compiler error) attempt to generate reference to a variable in a register.\n"); + return; + } + + +} + Variable var_op_member(Variable *from, char *member) { Variable out; return out; |