Just a hacky script to display calling conventions for syscalls for x86 and x86_64, information pulled from: https://chromium.googlesource.com/chromiumos/docs/+/master/constants/syscalls.md#x86-32_bit
To display both at once, just use both flags. To display one or the other, just use the one flag.
h0mbre:~$ python3 syscall.py read -x32 -x64
'read' calling convention for x86 (32-bit):
+-----+-----------------+
| eax | 3/0x03 |
+-----+-----------------+
| ebx | unsigned int fd |
+-----+-----------------+
| ecx | char *buf |
+-----+-----------------+
| edx | size_t count |
+-----+-----------------+
'read' calling convention for x86_64 (64-bit):
+-----+-----------------+
| rax | 0/0x00 |
+-----+-----------------+
| rdi | unsigned int fd |
+-----+-----------------+
| rsi | char *buf |
+-----+-----------------+
| rdx | size_t count |
+-----+-----------------+
To display a generic calling convention for either architecture, same rules apply just use 'cheat' as the syscall name.
h0mbre:~$ python3 syscall.py cheat -x32 -x64
x86 Calling Convention:
+-----+----------------+
| eax | syscall/return |
+-----+----------------+
| ebx | arg0 |
+-----+----------------+
| ecx | arg1 |
+-----+----------------+
| edx | arg2 |
+-----+----------------+
| esi | arg3 |
+-----+----------------+
| edi | arg4 |
+-----+----------------+
| ebp | arg5 |
+-----+----------------+
x86_64 Calling Convention:
+-----+----------------+
| rax | syscall/return |
+-----+----------------+
| rdi | arg0 |
+-----+----------------+
| rsi | arg1 |
+-----+----------------+
| rdx | arg2 |
+-----+----------------+
| r10 | arg3 |
+-----+----------------+
| r8 | arg4 |
+-----+----------------+
| r9 | arg5 |
+-----+----------------+
You will have to pip3 install beautifultable.
The script needs access to the two text files in the repo as well, obviously you can set that up however you like.