Initial commit

Makefile

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+default: all
+
+all: powerpc arm aarch64
+
+powerpc:
+	powerpc-linux-gnu-gcc -o ppc rosetta.c -static
+	powerpc-linux-gnu-objdump -d -Mintel ./ppc > ppc-dump
+
+arm:
+	arm-linux-gnueabi-gcc -o arm rosetta.c -static
+	arm-linux-gnueabi-objdump -d -Mintel ./arm > arm-dump
+
+aarch64:
+	aarch64-linux-gnu-gcc -o aarch64 rosetta.c -static
+	aarch64-linux-gnu-objdump -d -Mintel ./aarch64 > aarch64-dump

README.md

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+# The ASM Rosetta Stone
+This respository contains the ASM Rosetta Stone, a small snippet of C
+that you can use to learn a new assembly variant in a short amount of 
+time.
+
+## Checklist
+- registers
+	- names []
+	- width []
+- stack memory
+	- how is it used []
+	- prolouge, epilouge []
+- calling conventions
+	- arguments []
+	- return value []
+	- return address []
+- control flow
+	- branching []
+	- conditional branches[]
+	- calls []
+- syscall interface []
+
+
+
+
+
+

rosetta.c

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+#include <stdio.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+// calling conventions
+int returny_func(int *a, char b, short c, int d)
+{
+	// return value
+	return b+c;
+}
+
+int main(int argc, char **argv)
+{
+	// 64-bit
+	long long mylong = 0xbabecafef00dface;
+
+	// 32-bit
+	int myint = 0xdeadf00d;
+
+	// string operations
+	char str[] = "mystr";
+
+	// canary value
+	int i = 1337;
+
+	// control flow
+	while (i)
+	{
+		i--;
+	}
+	
+	int ret = returny_func(&i, 0x42, 0x69, 0x31337);
+
+	// syscall interface
+	syscall(SYS_write, 1, "done:)\n", 7);
+
+	return 32;
+}

setup.sh

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+#!/bin/sh
+
+sudo apt install gcc-aarch64-linux-gnu gcc-arm-linux-gnueabi gcc-powerpc-linux-gnu