curioustorvald/tsvm
1
0
Fork 0
mirror of https://github.com/curioustorvald/tsvm.git synced 2026-06-10 15:04:03 +09:00
Code Issues Packages Projects Releases Wiki Activity

pread/pwrite/ipf encoder/ipf decoder

Browse Source
This commit is contained in:
minjaesong
2022-09-17 23:36:02 +09:00
parent 96b54933c7
commit d4dc99ff83
13 changed files with 141 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
assets/disk0/tvdos/TVDOS.SYS
View File

@@ -261,8 +261,20 @@ _TVDOS.DRV.FS.SERIAL.getFileLen = (fd) => {
}
return Number(com.pullMessage(port[0]))
}
// TODO pread replaces DMA.comToRam
// TODO pwrite replaces DMA.ramToCom
_TVDOS.DRV.FS.SERIAL.pread = (fd, ptr, count, offset) => {
if (129 == _TVDOS.DRV.FS.SERIAL._openr(fd)) throw Error(`No such file: ${fd.fullPath}`)
let port = _TVDOS.DRV.FS.SERIAL._toPorts(fd.driveLetter)
com.sendMessage(port[0], "READ")
let response = com.getStatusCode(port[0])
if (135 == response) {
throw Error("File not opened")
}
if (response < 0 || response >= 128) {
throw Error("Reading a file failed with "+response)
}
dma.comToRam(port[0], offset, ptr, count)
}
_TVDOS.DRV.FS.SERIAL.sread = (fd) => {
if (129 == _TVDOS.DRV.FS.SERIAL._openr(fd)) throw Error(`No such file: ${fd.fullPath}`)
@@ -277,6 +289,15 @@ _TVDOS.DRV.FS.SERIAL.sread = (fd) => {
}
return com.pullMessage(port[0])
}
_TVDOS.DRV.FS.SERIAL.pwrite = (fd, ptr, count, offset) => {
if (offset) throw Error(`Write offset not supported on Serial device such as disk drives`)
let rrrr = _TVDOS.DRV.FS.SERIAL._openw(fd); if (rrrr != 0) throw Error("Writing a file failed with "+rrrr)
let port = _TVDOS.DRV.FS.SERIAL._toPorts(fd.driveLetter)
dma.ramToCom(ptr, port[0], count)
}
_TVDOS.DRV.FS.SERIAL.swrite = (fd, string) => {
let rrrr = _TVDOS.DRV.FS.SERIAL._openw(fd); if (rrrr != 0) throw Error("Writing a file failed with "+rrrr)
@@ -399,6 +420,7 @@ _TVDOS.DRV.FS.DEVRND.pread = (fd, ptr, count, offset) => {
for (let i = 0; i < count; i++) {
sys.poke(ptr + i, bytes[offset + i])
}
}
_TVDOS.DRV.FS.DEVRND.pwrite = (fd, ptr, count, offset) => {}
@@ -570,8 +592,8 @@ Object.freeze(_TVDOS.DRV.FS.DEVFBIPF)
// Legacy Serial filesystem, !!pending for removal!!
/*
const filesystem = {};
/*const filesystem = {};
filesystem._toPorts = (driveLetter) => {
if (driveLetter.toUpperCase === undefined) {
@@ -692,8 +714,8 @@ filesystem.remove = (driveLetter) => {
var response = com.getStatusCode(port[0]);
return (response === 0);
};
Object.freeze(filesystem);
*/
Object.freeze(filesystem);*/
///////////////////////////////////////////////////////////////////////////////