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Assembler (#6)

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Co-authored-by: Andre Wagner <WagnerAndre@JohnDeere.com>
Reviewed-on: https://192.168.5.48/andre/tyche/pulls/6
This commit was merged in pull request #6.
This commit is contained in:
Andre Wagner
2026-05-01 10:12:41 -05:00
parent b835dbb36e
commit a1aed4988a
13 changed files with 499 additions and 6 deletions
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78
src/vm/instruction.cc
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@@ -1,7 +1,62 @@
#include "instruction.hh"
#include <limits>
#include <unordered_map>
namespace tyche::vm {
const std::unordered_map<std::string, vm::Instruction> instruction_names = {
{ "pushi", vm::Instruction::PushInt8 },
{ "pushc", vm::Instruction::PushConstant8 },
{ "pushz", vm::Instruction::PushZero },
{ "pusht", vm::Instruction::PushTrue },
{ "newa", vm::Instruction::NewArray },
{ "newt", vm::Instruction::NewTable },
{ "pop", vm::Instruction::Pop },
{ "dup", vm::Instruction::Duplicate },
{ "setl", vm::Instruction::SetLocal8 },
{ "getl", vm::Instruction::GetLocal8 },
{ "setg", vm::Instruction::SetGlobal8 },
{ "getl", vm::Instruction::GetGlobal8 },
{ "call8", vm::Instruction::Call8 },
{ "ret", vm::Instruction::Return },
{ "retn", vm::Instruction::ReturnNil },
{ "getkv", vm::Instruction::GetKeyValue },
{ "setkv", vm::Instruction::SetKeyValue },
{ "geta", vm::Instruction::GetArrayItem },
{ "seta", vm::Instruction::SetArrayItem },
{ "appnd", vm::Instruction::Append },
{ "next", vm::Instruction::Next },
{ "smt", vm::Instruction::SetMetatable },
{ "mt", vm::Instruction::GetMetatable },
{ "sum", vm::Instruction::Sum },
{ "sub", vm::Instruction::Subtract },
{ "mul", vm::Instruction::Multiply },
{ "div", vm::Instruction::Divide },
{ "idiv", vm::Instruction::DivideInt },
{ "eq", vm::Instruction::Equals },
{ "neq", vm::Instruction::NotEquals },
{ "lt", vm::Instruction::LessThan },
{ "lte", vm::Instruction::LessThanEq },
{ "gt", vm::Instruction::GreaterThan },
{ "gte", vm::Instruction::GreaterThanEq },
{ "and", vm::Instruction::And },
{ "or", vm::Instruction::Or },
{ "xor", vm::Instruction::Xor },
{ "len", vm::Instruction::Len },
{ "type", vm::Instruction::Type },
{ "cast", vm::Instruction::Cast },
{ "ver", vm::Instruction::Version },
{ "bz", vm::Instruction::BranchIfZero8 },
{ "bnz", vm::Instruction::BranchIfNotZero8 },
{ "jmp", vm::Instruction::Jump8 },
{ "cmpl", vm::Instruction::Compile },
{ "asmbl", vm::Instruction::Assemble },
{ "load", vm::Instruction::Load },
};
std::pair<std::string, size_t> debug_instruction(Instruction inst, int oper)
{
std::string out;
@@ -142,4 +197,27 @@ OperandType instruction_operand_type(Instruction inst)
return OperandType::NoOperand;
}
std::optional<Instruction> translate_instruction(std::string const& txt, std::optional<int> op)
{
auto it = instruction_names.find(txt);
if (it == instruction_names.end())
return {};
Instruction inst = it->second;
OperandType optype = instruction_operand_type(inst);
if (optype == OperandType::NoOperand && op)
return {};
if (optype != OperandType::NoOperand && !op)
return {};
if (optype == OperandType::NoOperand)
return inst;
if (op >= std::numeric_limits<int8_t>::min() && op <= std::numeric_limits<int8_t>::max())
return inst;
if (op >= std::numeric_limits<int16_t>::min() && op <= std::numeric_limits<int16_t>::max())
return (Instruction) ((uint8_t) inst + OPCODE_NEXT_SIZE);
return (Instruction) ((uint8_t) inst + (OPCODE_NEXT_SIZE * 2));
}
}