corrrection of draw cursor

build-elf.bat

@@ -1,11 +1,72 @@
 @echo off
+setlocal enabledelayedexpansion
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+set "MSYS=C:\msys64"
+set "NASM=C:\Program Files\NASM\nasm.exe"
+
+"%MSYS%\usr\bin\bash.exe" -lc ^
+"set -e; cd '%~dp0'; \
+mkdir -p build; \
+echo assembling; \
+'%NASM%' -f elf32 -g -F dwarf src/boot.asm -o build/bios.o; \
+echo linking; \
+/usr/bin/ld -m elf_i386 -T link.ld -o build/bios.elf build/bios.o; \
+echo objcopy; \
+/usr/bin/objcopy -O binary build/bios.elf build/bios.bin; \
+echo done"
+
+pause
+exit /b %errorlevel%
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+exit 0
+
+rem Outils
+set NASM="C:\Program Files\NASM\nasm.exe"
+set "LD=C:\msys64\usr\bin\ld.exe"
+set "OBJCOPY=C:\msys64\mingw64\bin\objcopy.exe"
+
+rem Se placer dans le dossier du .bat
+pushd "%~dp0"
 
 if not exist build mkdir build 
 cd src
-echo compiling
-"C:\Program Files\NASM\nasm.exe" -f elf32 -g -F dwarf boot.asm -o ..\build\bios.o 
-echo LD
-ld -m elf_i386 -T link.ld -o build\bios.elf build\bios.o
-echo ObjectCopy
-objcopy -O binary build\bios.elf build\bios.bin 
-cd ..
+echo compiling ELF file
+%NASM% -f elf32 -g -F dwarf boot.asm -o ..\build\bios-elf.o 
+echo compiling ROM file
+%NASM% -f bin boot.asm -o ..\build\bios.bin
+echo Linking
+%LD% -m elf_i386 -T link.ld -o ..\build\bios.elf ..\build\bios-elf.o
+echo ObjCopy
+%OBJCOPY% -O binary ..\build\bios.elf ..\build\bios-elf.bin 
+
+popd
+
+pause