curioustorvald/tsvm
1
0
Fork 0
mirror of https://github.com/curioustorvald/tsvm.git synced 2026-06-10 23:04:04 +09:00
Code Issues Packages Projects Releases Wiki Activity

lfs -c impl; tvdos app spec change

Browse Source
This commit is contained in:
minjaesong
2023-05-11 21:05:31 +09:00
parent 803b86ce43
commit 25837b6ae9
3 changed files with 90 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
assets/disk0/home/appexec.js
View File

@@ -40,9 +40,9 @@ if (targetOS != 1 && targetOS != 0) {
}
function strToInt48(str) {
function strToInt32(str) {
let s = [...str].map(it=>it.charCodeAt(0))
return ((4294967296 + (s[0] << 40)) + (s[1] << 32) + (s[2] << 24) + (s[3] << 16) + (s[4] << 8) + s[5]) - 4294967296
return (s[0] << 24) + (s[1] << 16) + (s[2] << 8) + s[3]
}
function makeHash(length) {
@@ -63,8 +63,8 @@ let sectionTable = []
let rodata = {}
for (let i = 0; i < sectionCount; i++) {
let sectName = filebytes.substring(16 * (i+1), 16 * (i+1) + 10).trimNull()
let sectOffset = strToInt48(filebytes.substring(16 * (i+1) + 10, 16 * (i+1) + 16))
let sectName = filebytes.substring(16 * (i+1), 16 * (i+1) + 12).trimNull()
let sectOffset = strToInt32(filebytes.substring(16 * (i+1) + 12, 16 * (i+1) + 16))
sectionTable.push([sectName, sectOffset])
}
@@ -72,17 +72,17 @@ for (let i = 0; i < sectionTable.length - 1; i++) {
let [sectName, sectOffset] = sectionTable[i]
let nextSectOffset = sectionTable[i+1][1]
let uncompLen = strToInt48(filebytes.substring(sectOffset, sectOffset + 6))
let compPayload = filebytes.substring(sectOffset + 6, nextSectOffset)
let uncompLen = strToInt32(filebytes.substring(sectOffset, sectOffset + 4))
let compPayload = filebytes.substring(sectOffset + 4, nextSectOffset)
if ("RODATA" == sectName) {
let rodataPtr = 0
while (rodataPtr < nextSectOffset - sectOffset) {
let labelLen = filebytes.charCodeAt(sectOffset + rodataPtr)
let label = filebytes.substring(sectOffset + rodataPtr + 1, sectOffset + rodataPtr + 1 + labelLen)
let payloadLen = strToInt48(filebytes.substring(sectOffset + rodataPtr + 1 + labelLen, sectOffset + rodataPtr + 1 + labelLen + 6))
let uncompLen = strToInt48(filebytes.substring(sectOffset + rodataPtr + 1 + labelLen + 6, sectOffset + rodataPtr + 1 + labelLen + 12))
let sectPayload = filebytes.substring(sectOffset + rodataPtr + 1 + labelLen + 12, sectOffset + rodataPtr + 1 + labelLen + 12 + payloadLen)
let payloadLen = strToInt32(filebytes.substring(sectOffset + rodataPtr + 1 + labelLen, sectOffset + rodataPtr + 1 + labelLen + 4))
let uncompLen = strToInt32(filebytes.substring(sectOffset + rodataPtr + 1 + labelLen + 4, sectOffset + rodataPtr + 1 + labelLen + 8))
let sectPayload = filebytes.substring(sectOffset + rodataPtr + 1 + labelLen + 8, sectOffset + rodataPtr + 1 + labelLen + 8 + payloadLen)
try {
@@ -96,11 +96,11 @@ for (let i = 0; i < sectionTable.length - 1; i++) {
decompFun(payload)
rodataPtr += 13 + labelLen + payloadLen
rodataPtr += 9 + labelLen + payloadLen
}
}
else if ("TEXT" == sectName) {
let program = String.fromCharCode.apply(null, decompFun(compPayload))
let program = btostr(decompFun(compPayload))
// inject RODATA map
let rodataSnippet = `const __RODATA=Object.freeze(${JSON.stringify(rodata)});`