mirror of
https://github.com/krgamestudios/Toy.git
synced 2026-04-15 14:54:07 +10:00
Kayne Ruse
24cfe7f539
By leaving 'null' on the stack, it won't cause stack underflows in a bunch of erroneous situations. This will allow the repl (and other situations) to continue if they want to. I've also fixed some error messages in toy_table.c, which were formatted badly. Closes #162
67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
#pragma once
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typedef enum Toy_OpcodeType {
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//This offsets the opcode values, so I can see TOY_OPCODE_READ in GDB clearly
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TOY_OPCODE_UNUSED = 0,
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//variable instructions
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TOY_OPCODE_READ,
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TOY_OPCODE_DECLARE,
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TOY_OPCODE_ASSIGN,
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TOY_OPCODE_ASSIGN_COMPOUND, //assign to a compound's internals
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TOY_OPCODE_ACCESS,
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TOY_OPCODE_DUPLICATE, //duplicate the top of the stack
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//arithmetic instructions
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TOY_OPCODE_ADD,
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TOY_OPCODE_SUBTRACT,
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TOY_OPCODE_MULTIPLY,
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TOY_OPCODE_DIVIDE,
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TOY_OPCODE_MODULO,
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//comparison instructions
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TOY_OPCODE_COMPARE_EQUAL,
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// TOY_OPCODE_COMPARE_NOT, //NOTE: optimized into a composite of TOY_OPCODE_COMPARE_EQUAL + TOY_OPCODE_NEGATE
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TOY_OPCODE_COMPARE_LESS,
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TOY_OPCODE_COMPARE_LESS_EQUAL,
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TOY_OPCODE_COMPARE_GREATER,
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TOY_OPCODE_COMPARE_GREATER_EQUAL,
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//logical instructions
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TOY_OPCODE_AND,
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TOY_OPCODE_OR,
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TOY_OPCODE_TRUTHY,
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TOY_OPCODE_NEGATE,
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//control instructions
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TOY_OPCODE_RETURN,
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TOY_OPCODE_JUMP,
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TOY_OPCODE_SCOPE_PUSH,
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TOY_OPCODE_SCOPE_POP,
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//various action instructions
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TOY_OPCODE_ASSERT,
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TOY_OPCODE_PRINT,
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TOY_OPCODE_CONCAT,
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TOY_OPCODE_INDEX,
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//meta instructions
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TOY_OPCODE_PASS,
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TOY_OPCODE_ERROR,
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TOY_OPCODE_EOF = 255,
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} Toy_OpcodeType;
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//specific opcode flags
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typedef enum Toy_OpParamJumpType {
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TOY_OP_PARAM_JUMP_ABSOLUTE = 0, //from the start of the routine's code section
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TOY_OP_PARAM_JUMP_RELATIVE = 1,
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} Toy_OpJumpType;
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typedef enum Toy_OpParamJumpConditional {
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TOY_OP_PARAM_JUMP_ALWAYS = 0,
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TOY_OP_PARAM_JUMP_IF_TRUE = 1,
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TOY_OP_PARAM_JUMP_IF_FALSE = 2,
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} Toy_OpParamJumpConditional;
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