StackTransInfo instrStackTransInfo(PC opcode) {
static const StackTransInfo::Kind transKind[] = {
#define NOV StackTransInfo::Kind::PushPop
#define ONE(...) StackTransInfo::Kind::PushPop
#define TWO(...) StackTransInfo::Kind::PushPop
#define THREE(...) StackTransInfo::Kind::PushPop
#define FOUR(...) StackTransInfo::Kind::PushPop
#define IDX_A StackTransInfo::Kind::PushPop
#define INS_1(...) StackTransInfo::Kind::InsertMid
#define INS_2(...) StackTransInfo::Kind::InsertMid
#define O(name, imm, pop, push, flags) push,
OPCODES
#undef NOV
#undef ONE
#undef TWO
#undef THREE
#undef FOUR
#undef INS_1
#undef INS_2
#undef IDX_A
#undef O
};
static const int8_t peekPokeType[] = {
#define NOV -1
#define ONE(...) -1
#define TWO(...) -1
#define THREE(...) -1
#define FOUR(...) -1
#define INS_1(...) 0
#define INS_2(...) 1
#define IDX_A 0
#define O(name, imm, pop, push, flags) push,
OPCODES
#undef NOV
#undef ONE
#undef TWO
#undef THREE
#undef FOUR
#undef INS_2
#undef INS_1
#undef IDX_A
#undef O
};
StackTransInfo ret;
auto const op = peek_op(opcode);
ret.kind = transKind[size_t(op)];
switch (ret.kind) {
case StackTransInfo::Kind::PushPop:
ret.pos = 0;
ret.numPushes = instrNumPushes(opcode);
ret.numPops = instrNumPops(opcode);
return ret;
case StackTransInfo::Kind::InsertMid:
ret.numPops = 0;
ret.numPushes = 0;
ret.pos = peekPokeType[size_t(op)];
return ret;
}
not_reached();
}
StackTransInfo instrStackTransInfo(const Opcode* opcode) {
static const StackTransInfo::Kind transKind[] = {
#define NOV StackTransInfo::PushPop
#define ONE(...) StackTransInfo::PushPop
#define TWO(...) StackTransInfo::PushPop
#define THREE(...) StackTransInfo::PushPop
#define FOUR(...) StackTransInfo::PushPop
#define INS_1(...) StackTransInfo::InsertMid
#define INS_2(...) StackTransInfo::InsertMid
#define O(name, imm, pop, push, flags) push,
OPCODES
#undef NOV
#undef ONE
#undef TWO
#undef THREE
#undef FOUR
#undef INS_1
#undef INS_2
#undef O
};
static const int8_t peekPokeType[] = {
#define NOV -1
#define ONE(...) -1
#define TWO(...) -1
#define THREE(...) -1
#define FOUR(...) -1
#define INS_1(...) 0
#define INS_2(...) 1
#define O(name, imm, pop, push, flags) push,
OPCODES
#undef NOV
#undef ONE
#undef TWO
#undef THREE
#undef FOUR
#undef INS_2
#undef INS_1
#undef O
};
StackTransInfo ret;
ret.kind = transKind[*opcode];
switch (ret.kind) {
case StackTransInfo::PushPop:
ret.pos = 0;
ret.numPushes = instrNumPushes(opcode);
ret.numPops = instrNumPops(opcode);
return ret;
case StackTransInfo::InsertMid:
ret.numPops = 0;
ret.numPushes = 0;
ret.pos = peekPokeType[*opcode];
return ret;
default:
NOT_REACHED();
}
}
