Change bytecode size type to bigger integer

marekjm / viuavm

Parallel virtual machine designed to reliably run massively concurrent programs

https://viuavm.org/

GNU General Public License v3.0

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Change bytecode size type to bigger integer #94

Closed marekjm closed 8 years ago

marekjm commented 8 years ago

Currently, the bytecode size is held by unit16_t type variables. This is a rather poor choice - Viua programs can be at most 65536 bytes of bytecode. Proposed solution is to move to uint64_t for bytecode size variables.

marekjm commented 8 years ago

This would also require changes in several places to be made:

jump and branch instructions should use uint64_t as their operands,
function table should use unit64_t to store function entry point addresses,
bytecode format specification,
loader, assembler and disassembler tools,