69 lines
2 KiB
JavaScript
69 lines
2 KiB
JavaScript
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import { ASM, $load, $store } from '../asm.js';
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import { assemble } from './assembler.js';
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export const rTmp = 12;
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export const fTmp = 12;
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/**
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* @typedef {Parameters<import('./assembler.js').assemble>[0] extends (infer U)[] ? U : never} ASMInst
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* @typedef {'GMSJ01'|'GMSJ0A'|'GMSE01'|'GMSP01'} GameVersion
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* @typedef {{type: 'reg', num: number}} LoadDstReg
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* @typedef {{type: 'stack', off: number}} LoadDstStack
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* @typedef {LoadDstReg|LoadDstStack} LoadDst
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* @typedef {{
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* asm(version: GameVersion, dst: LoadDst): ASMInst[]
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* dtype: 8|16|32|'float'
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* calling: boolean
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* }} Loader
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*/
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/**
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* @param {Loader['dtype']} dtype
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* @param {(reg: number, version: GameVersion)=>ASMInst[]} load
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* @param {(rD: number, version: GameVersion)=>ASMInst[]} [postprocess]
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* @returns {Loader['asm']}
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*/
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export const makeDirectLoaderASM = (dtype, load, postprocess) => (version, dst) => {
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const { type } = dst;
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if (type == 'reg') {
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const { num } = dst;
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return [...load(num, version), ...(postprocess?.(num, version) ?? [])];
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} else {
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const { num, st } =
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dtype === 'float' ? { num: fTmp, st: ASM.stfd } : { num: rTmp, st: ASM.stw };
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return [...load(num, version), ...(postprocess?.(num, version) ?? []), st(num, 1, dst.off)];
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}
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};
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/**
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* @param {Loader['dtype']} dtype
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* @param {(version: GameVersion)=>ASMInst[]} load
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* @returns {Loader['asm']}
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*/
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export const makeFunctionLoaderASM = (dtype, load) => (version, dst) => {
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const { type } = dst;
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const base = load(version);
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if (type == 'reg') {
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const { num } = dst;
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if (dtype === 'float') {
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return num === 1 ? base : [...base, ASM.fmr(num, 1)];
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} else {
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return num === 3 ? base : [...base, ASM.mr(num, 3)];
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}
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} else {
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const { off } = dst;
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return [...base, dtype === 'float' ? ASM.stfd(1, 1, off) : ASM.stw(3, 1, off)];
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}
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};
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/**
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* @param {Loader['dtype']} dtype
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* @param {(version: GameVersion)=>ASMInst[]} load
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* @returns {Loader}
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*/
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export const makeFunctionLoader = (dtype, load) => ({
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dtype,
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asm: makeFunctionLoaderASM(dtype, load),
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calling: true,
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});
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