From 8328b0c337eec8705021856272c8bb314b76c272 Mon Sep 17 00:00:00 2001 From: warlock <941510759> Date: Tue, 25 May 2021 17:48:56 +0800 Subject: [PATCH] 01_day --- 01_day/boot.img | Bin 0 -> 512 bytes 01_day/hello.asm | 38 ++++++++++++++++++++++++++++++++++ 01_day/hello.img | 38 ++++++++++++++++++++++++++++++++++ 01_day/helloos.img | Bin 0 -> 1474560 bytes 01_day/helloos.nas | 50 +++++++++++++++++++++++++++++++++++++++++++++ 01_day/makefile | 32 +++++++++++++++++++++++++++++ 6 files changed, 158 insertions(+) create mode 100755 01_day/boot.img create mode 100755 01_day/hello.asm create mode 100755 01_day/hello.img create mode 100644 01_day/helloos.img create mode 100644 01_day/helloos.nas create mode 100755 01_day/makefile diff --git a/01_day/boot.img b/01_day/boot.img new file mode 100755 index 0000000000000000000000000000000000000000..d6fbb37c2c2c69750345a1b63b0768ab78d4f9e7 GIT binary patch literal 512 zcmaFu$B>bllaucs9KpcE$jHF-fWd+L11EzJ0}}%XIBkVW{c5(RW~9Nlh0^^D#ynh7!&#e7pG>&I-JK_vQ6pE-tW@ iIwkojiIqB)`K1bpMX3tOMTu3FT&Sjv@@N|Zp{oFn?kyt# literal 0 HcmV?d00001 diff --git a/01_day/hello.asm b/01_day/hello.asm new file mode 100755 index 0000000..69b6739 --- /dev/null +++ b/01_day/hello.asm @@ -0,0 +1,38 @@ +;hello for you +org 0x7c00 +jmp entry +db 0x00 +db "helloOSX" +dw 512 +db 1 +dw 1 +db 2 +dw 224 +dw 2880 +db 0xf0 +dw 9 +dw 18 +dw 2 +dd 0 +dd 2880 +db 0,0,0x29 +dd 0xffffffff +db "myosudisk " +db "fat12 " +resb 18 + + +entry: +db 0xb8,0x00,0x00,0x8e,0xd0,0xbc,0x00,0x7c +db 0x8e,0xd8,0x8e,0xc0,0xbe,0x74,0x7c,0x8a +db 0x04,0x83,0xc6,0x01,0x3c,0x00,0x74,0x09 +db 0xb4,0x0e,0xbb,0x0f,0x00,0xcd,0x10,0xeb +db 0xee,0xf4,0xeb,0xfd + +db 0x0a,0x0a +db "hello,today,you are crazy" +db 0x0a +db 0x00 + +times 510-($-$$) db 0x00 +db 0x55,0xaa diff --git a/01_day/hello.img b/01_day/hello.img new file mode 100755 index 0000000..69b6739 --- /dev/null +++ b/01_day/hello.img @@ -0,0 +1,38 @@ +;hello for you +org 0x7c00 +jmp entry +db 0x00 +db "helloOSX" +dw 512 +db 1 +dw 1 +db 2 +dw 224 +dw 2880 +db 0xf0 +dw 9 +dw 18 +dw 2 +dd 0 +dd 2880 +db 0,0,0x29 +dd 0xffffffff +db "myosudisk " +db "fat12 " +resb 18 + + +entry: +db 0xb8,0x00,0x00,0x8e,0xd0,0xbc,0x00,0x7c +db 0x8e,0xd8,0x8e,0xc0,0xbe,0x74,0x7c,0x8a +db 0x04,0x83,0xc6,0x01,0x3c,0x00,0x74,0x09 +db 0xb4,0x0e,0xbb,0x0f,0x00,0xcd,0x10,0xeb +db 0xee,0xf4,0xeb,0xfd + +db 0x0a,0x0a +db "hello,today,you are crazy" +db 0x0a +db 0x00 + +times 510-($-$$) db 0x00 +db 0x55,0xaa diff --git a/01_day/helloos.img b/01_day/helloos.img new file mode 100644 index 0000000000000000000000000000000000000000..4510f68d69504b34e102eb250bf428e9964c523f GIT binary patch literal 1474560 zcmeI$Axi{77zW^P7t8H|ioam1ph2_Y42r_y3F<#M!LV>32bOC#!{YBS8w5p6Ho<7L zFUSR}thctqzUg_x3?DPh3s0Q-==NZ*D29i}MWjg*>1Pc3vtF!48f^ysc3p4g`Mb9{ zJjwHXfA@52d%m}4i+PBs-k)MxeN->clj+UU^=q;dlivOE<4U}()?eTCPnKPrm*sdP zzZzebqipd3Q-=a)ceAGHuul~M0t5&UAV7cs0RjXF5FkK+K-U8Pf4UaeM}PnU0t5&U 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code + + DB 0xeb, 0x4e, 0x90 + DB "HELLOIPL" ; 启动扇区名称（8字节） + DW 512 ; 每个扇区（sector）大小（必须512字节） + DB 1 ; 簇（cluster）大小（必须为1个扇区） + DW 1 ; FAT起始位置（一般为第一个扇区） + DB 2 ; FAT个数（必须为2） + DW 224 ; 根目录大小（一般为224项） + DW 2880 ; 该磁盘大小（必须为2880扇区1440*1024/512） + DB 0xf0 ; 磁盘类型（必须为0xf0） + DW 9 ; FAT的长度（必须是9扇区） + DW 18 ; 一个磁道（track）有几个扇区（必须为18） + DW 2 ; 磁头数（必须是2） + DD 0 ; 不使用分区，必须是0 + DD 2880 ; 重写一次磁盘大小 + DB 0,0,0x29 ; 意义不明（固定） + DD 0xffffffff ; （可能是）卷标号码 + DB "HELLO-OS " ; 磁盘的名称（必须为11字节，不足填空格） + DB "FAT12 " ; 磁盘格式名称（必须是8字节，不足填空格） + RESB 18 ; 先空出18字节 + +; 程序主体 + + DB 0xb8, 0x00, 0x00, 0x8e, 0xd0, 0xbc, 0x00, 0x7c + DB 0x8e, 0xd8, 0x8e, 0xc0, 0xbe, 0x74, 0x7c, 0x8a + DB 0x04, 0x83, 0xc6, 0x01, 0x3c, 0x00, 0x74, 0x09 + DB 0xb4, 0x0e, 0xbb, 0x0f, 0x00, 0xcd, 0x10, 0xeb + DB 0xee, 0xf4, 0xeb, 0xfd + +; 信息显示部分 + + DB 0x0a, 0x0a ; 换行两次 + DB "hello, world" + DB 0x0a ; 换行 + DB 0 + + RESB 0x1fe-$ ; 填写0x00直到0x001fe + + DB 0x55, 0xaa + +; 启动扇区以外部分输出 + + DB 0xf0, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00 + RESB 4600 + DB 0xf0, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00 + RESB 1469432 diff --git a/01_day/makefile b/01_day/makefile new file mode 100755 index 0000000..7bf08f8 --- /dev/null +++ b/01_day/makefile @@ -0,0 +1,32 @@ +src=hello.asm +bootstrap=boot.img + +boot:boot.img +boot.img:hello.asm + nasm $(src) -o $(bootstrap) +fat12: + @dd if=/dev/zero of=$(bootstrap) seek=1 count=2879 >> /dev/zero + @ls -al $(bootstrap) + +loop:fat12 + -sudo umount /mnt + sudo mount -t msdos -o loop,fat=12 $(bootstrap) /mnt + + +run:boot fat12 + qemu-system-i386 -drive file=$(bootstrap),if=floppy + +runusb:writeusb + sudo qemu -drive file=/dev/sdb,if=floppy + + + +runas: + qemu -drive file=$(bootstrap),if=floppy + +writeusb: + sudo dd if=$(bootstrap) of=/dev/sdb + + + +