mirror of
https://github.com/DaanVandenBosch/phantasmal-world.git
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125 lines
4.6 KiB
JSON
125 lines
4.6 KiB
JSON
{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"title": "Phantasy Star Online Instruction Set",
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"type": "object",
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"required": ["opcodes"],
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"additionalProperties": false,
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"properties": {
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"opcodes": {
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"type": "array",
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"description": "List of every known opcode.",
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"items": {
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"$ref": "#/definitions/opcode"
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}
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}
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},
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"definitions": {
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"opcode": {
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"type": "object",
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"required": ["code", "params"],
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"additionalProperties": false,
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"properties": {
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"code": {
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"type": "string",
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"pattern": "^0x(f8|f9)?[0-9a-f]{2}$",
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"description": "Unique byte representation of the opcode."
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},
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"mnemonic": {
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"type": "string",
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"pattern": "^[a-z][a-z0-9=<>!_]+$",
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"description": "Unique string representation of the opcode."
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},
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"doc": {
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"type": "string",
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"description": "Opcode documentation."
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},
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"params": {
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"type": "array",
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"description": "Opcode parameters. Whether or not the stack is used is determined by the stack property.",
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"items": {
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"$ref": "#/definitions/param"
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}
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},
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"stack": {
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"enum": ["push", "pop"],
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"description": "Stack interaction. \"push\" if the instruction takes immediate arguments and pushes its arguments onto the stack. \"pop\" if the instruction doesn't take immediate arguments but pops its arguments off the stack."
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}
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}
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},
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"param": {
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"type": "object",
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"required": ["type"],
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"additionalProperties": false,
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"properties": {
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"type": {
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"$ref": "#/definitions/param_type"
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},
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"name": {
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"type": "string",
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"description": "Parameter name."
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},
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"doc": {
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"type": "string",
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"description": "Parameter-specific documentation."
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},
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"read": {
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"type": "boolean",
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"description": "Does this opcode read the given register. Should only be specified if type is \"reg\" or \"reg_var\"."
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},
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"write": {
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"type": "boolean",
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"description": "Does this opcode write to the given register. Should only be specified if type is \"reg\" or \"reg_var\"."
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},
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"registers": {
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"type": "array",
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"minItems": 1,
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"description": "Specifies the way the referenced registers will be interpreted. Should only be specified if the parameter type is \"reg\".",
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"items": {
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"type": "object",
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"required": [
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"type"
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],
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"additionalProperties": false,
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"properties": {
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"type": {
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"$ref": "#/definitions/param_type"
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},
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"name": {
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"type": "string",
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"description": "Register name."
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},
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"read": {
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"type": "boolean",
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"description": "Does this opcode read the given register."
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},
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"write": {
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"type": "boolean",
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"description": "Does this opcode write to the given register."
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}
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}
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}
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}
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}
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},
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"param_type": {
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"type": "string",
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"enum": [
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"any",
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"byte",
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"short",
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"int",
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"float",
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"label",
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"ilabel",
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"dlabel",
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"slabel",
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"string",
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"ilabel_var",
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"reg",
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"reg_var",
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"pointer"
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]
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}
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}
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}
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