py bin2exe incase errors

readme.md

@@ -11,6 +11,7 @@ A rest from the usual.
 ```ps1
 scoop bucket add extras
 scoop install armips
+scoop install lua
 ```
 
 [pscx-redux](https://github.com/grumpycoders/pcsx-redux/): A collection of tools, research, hardware design, and libraries aiming at development and reverse engineering on the PlayStation 1.

scripts/bin2exe.py

@@ -0,0 +1,68 @@
+#!/usr/bin/env python
+from __future__ import print_function
+import os
+import sys
+import struct
+import math
+
+usage = '''
+python bin2exe.py infile outfile
+'''
+
+def main(argv):
+    if len(argv) != 2:
+        print(usage, file=sys.stderr)
+        sys.exit(1)
+
+    max_size = 0x200000
+    infile_size = os.path.getsize(argv[0])
+    if infile_size > max_size:
+        print("Error: Input file %s longer than %d bytes" % (argv[0], max_size), file=sys.stderr)
+        sys.exit(1)
+
+    ofile = open(argv[1], 'wb')
+    
+    with open(argv[0], 'rb') as ifile:
+        # Write header
+        if sys.version_info >= (3, 0):
+            ofile.write(bytes('PS-X EXE', 'ascii'))
+        else:
+            ofile.write('PS-X EXE')
+        # Entry point
+        ofile.seek(0x10)
+        ofile.write(struct.pack('<I',0x80010000))
+        # Initial GP/R28 (crt0.S currently sets this)
+        ofile.write(struct.pack('<I',0xFFFFFFFF))
+        # Destination address in RAM
+        ofile.write(struct.pack('<I',0x80010000))
+        # Initial SP/R29 & FP/R30
+        ofile.seek(0x30)
+        ofile.write(struct.pack('<I',0x801FFF00))
+        # SP & FP offset added to    ^^^^^^^^^^ just use 0
+        #ofile.write(struct.pack('<I',0x00000000))
+        # Zero fill rest of the header
+        ofile.seek(0x800)
+
+        # Copy input to output
+        buffer_size = 0x2000
+        for i in range(0,int(math.ceil(float(infile_size)/buffer_size))):
+            buffer = ifile.read(buffer_size)
+            ofile.write(buffer)
+        # ofile.write(ifile.read())
+
+        # Pad binary to 0x800 boundary
+        exe_size = ofile.tell()
+        if exe_size % 0x800 != 0:
+            exe_size += (0x800 - (exe_size % 0x800))
+            ofile.seek(exe_size-1)
+            ofile.write(struct.pack('B',0))
+
+        # Filesize excluding 0x800 byte header
+        ofile.seek(0x1C)
+        ofile.write(struct.pack('<I', exe_size - 0x800))
+
+    ofile.close()
+
+if __name__ == '__main__':
+    main(sys.argv[1:])
+    sys.exit(0)

scripts/build.ps1

@@ -9,6 +9,7 @@ if ((test-path $path_build) -eq $false) {
 
 $armips      = 'armips'
 $bin2exe_lua = join-path $path_scripts 'bin2exe.lua'
+$bin2exe_py  = join-path $path_scripts 'bin2exe.py'
 
 $path_fillmem = join-path $path_code    'fillmem'
 $src_fillmem  = join-path $path_fillmem 'fillmem.s'
@@ -21,6 +22,7 @@ write-host "Assembling: $src_fillmem`n"
 
 write-host 'Generating executable..'
 & lua $bin2exe_lua $bin_fillmem $exe_fillmem
+# & py $bin2exe_py $bin_fillmem $exe_fillmem
 
 write-host 'Done!'
 pop-location