ARMとRISC-Vでも実行出来る様に

README.md

@@ -1,13 +1,28 @@
-此れはlibcなしの「こんにちは、世界」のデモです。\
-Linux、FreeBSD、OpenBSD、NetBSD、及びmacOSで実行出来ますが、IntelやAMD CPUが必須に成ります。
+此れはlibcなしの「こんにちは、世界」のデモです。
 
-This is a libc-less "hello, world" demo.\
-It runs on Linux, FreeBSD, OpenBSD, NetBSD, and macOS, but requires an Intel or AMD CPU.
+This is a libc-less "hello, world" demo.
 
+## 対応 | Support
+| OS      | CPU     | 対応 | テスト済み |
+|---------|---------|------|------------|
+| Linux   | x86-64  | 〇   | 〇         |
+| Linux   | AArch64 | 〇   | 〇         |
+| Linux   | RISC-V  | 〇   | 〇         |
+| FreeBSD | x86-64  | 〇   | 〇         |
+| OpenBSD | x86-64  | ✕    | ✕          |
+| NetBSD  | x86-64  | 〇   | ✕          |
+| macOS   | x86-64  | 〇   | ✕          |
+| macOS   | AArch64 | 〇   | ✕          |
+| Windows | x86-64  | ✕    | ✕          |
+| Windows | AArch64 | ✕    | ✕          |
+
+## 使い方 | How to use
+
+### x86-64
 ```sh
 $ cc -nostdlib -static -masm=intel -o main main.c
 $ ls -thal main
--rwxr-xr-x  1 suwako suwako  1.6K 12月 15 15:57 main
+-rwxr-xr-x  1 suwako suwako  1.5K 12月 15 15:57 main
 $ file main
 main: ELF 64-bit LSB executable, x86-64, version 1 (FreeBSD), statically linked, not stripped
 $ objdump -M intel -d main
@@ -29,4 +44,36 @@ Disassembly of section .text:
   201213: 0f 05                         syscall
   201215: 5d                            pop     rbp
   201216: c3                            ret
+$ ./main
+こんにちは、世界！
+```
+
+### AArch64、RISC-V
+```sh
+$ cc -nostdlib -static -o main main.c
+$ ls -thal main
+-rwxrwxr-x 1 suwako suwako 5.5K 12月 15 16:54 main
+$ file main
+main: ELF 64-bit LSB executable, UCB RISC-V, RVC, double-float ABI, version 1 (SYSV), statically linked, BuildID[sha1]=〇〇, not stripped
+$ objdump -d main
+
+main:     file format elf64-littleriscv
+
+
+Disassembly of section .text:
+
+000000000001017c <_start>:
+   1017c:       00001797                auipc   a5,0x1
+   10180:       e8478793                addi    a5,a5,-380 # 11000 <msg>
+   10184:       04000893                li      a7,64
+   10188:       4505                    li      a0,1
+   1018a:       85be                    mv      a1,a5
+   1018c:       4671                    li      a2,28
+   1018e:       00000073                ecall
+   10192:       05d00893                li      a7,93
+   10196:       4501                    li      a0,0
+   10198:       00000073                ecall
+   1019c:       0001                    nop
+$ ./main
+こんにちは、世界！
 ```