78 lines
2.2 KiB
Markdown
78 lines
2.2 KiB
Markdown
mkdir ~/bochs-m4 && cd ~/bochs-m4 && clear
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# =======================================================================
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# BOOTLOADER hello.asm (16-bit real-mode, BIOS int 0x10)
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# =======================================================================
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cat > hello.asm << 'EOF'
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[BITS 16]
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[ORG 0x7C00]
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start:
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xor ax, ax ; Zero segment registers
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mov ds, ax
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mov es, ax
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mov si, msg ; SI = pointer na zprávu
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print_loop:
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lodsb ; AL = [SI++]
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cmp al, 0 ; konec stringu?
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je hlt_loop
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mov ah, 0x0E ; Teletype BIOS funkce
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int 0x10 ; Vypis znak
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jmp print_loop
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hlt_loop:
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hlt ; Zastav CPU
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jmp hlt_loop
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msg: db 'Hello M4 Bochs v2026!', 0
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times 510-($-$$) db 0
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dw 0xAA55 ; Boot signature (povinné!)
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EOF
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# =======================================================================
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# KOMPILACE + 1.44MB FLOPPY IMAGE
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# =======================================================================
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nasm -f bin hello.asm -o hello.bin
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dd if=/dev/zero of=boot.img bs=512 count=2880 # Plný floppy
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dd if=hello.bin of=boot.img bs=512 count=1 conv=notrunc
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echo "✅ Boot signature: $(hexdump -C boot.img | tail -1)"
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# =======================================================================
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# BOCHS 3.0 CESTY (Homebrew Apple Silicon M4)
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# =======================================================================
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VGA_PATH="/opt/homebrew/Cellar/bochs/3.0/share/bochs/VGABIOS-lgpl-latest.bin"
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BIOS_PATH="/opt/homebrew/Cellar/bochs/3.0/share/bochs/BIOS-bochs-latest"
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echo "✅ VGABIOS: $VGA_PATH"
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echo "✅ BIOS: $BIOS_PATH"
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ls -la "$VGA_PATH" "$BIOS_PATH"
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# =======================================================================
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# BOCHSRC CONFIG (SDL2 GUI + rychlost)
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# =======================================================================
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cat > bochsrc << EOF
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# Memory + CPU
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megs: 32
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cpu: count=1, ips=20000000
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# Display (SDL2 GUI okno)
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display_library: sdl2
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# ROM images (Homebrew M4 paths)
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romimage: file="$BIOS_PATH"
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vgaromimage: file="$VGA_PATH"
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# Boot floppy
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boot: floppy
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floppya: 1_44=boot.img, status=inserted
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# Keyboard + log
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keyboard: type=mf
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log: bochsout.txt
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EOF
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echo "✅ VŠE PŘIPRAVENO! 🚀"
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ls -la *.asm *.bin *.img bochsrc
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echo "START: bochs -f bochsrc -q"
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