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* x86/boot/setup: get boot drive parametersJoursoir2021-10-061-0/+28
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* x86/boot/head: check a20 lineJoursoir2021-10-011-0/+8
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* x86/boot/setup: enable a20 lineJoursoir2021-10-011-2/+43
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* x86/boot/setup: set up the stackJoursoir2021-10-011-0/+4
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* x86/boot/makefile: compile two-stage bootloaderJoursoir2021-09-281-8/+20
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* x86/boot: add 32bit startup codeJoursoir2021-09-282-12/+27
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* x86/boot: transform one-stage to two-stage bootloaderJoursoir2021-09-282-104/+135
| | | | | | bootsect.s is first stage bootloader, it loads setup.s setup.s is second stage bootloader, it saves system data and loads kernel to $KERNADDR, then jump to 32-bit startup code
* x86/boot/bios: add calling convention for BIOS_PRINTJoursoir2021-09-281-0/+1
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* x86/boot: add real mode segment constantsJoursoir2021-09-281-0/+13
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* x86/boot: add asm routine for entering the kernelJoursoir2021-08-301-0/+12
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* move the arch specific code for port IO to the correct placeJoursoir2021-08-301-0/+15
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* x86/boot: add simple linker scriptJoursoir2021-08-271-0/+10
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* x86/boot: add makefileJoursoir2021-08-271-0/+27
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* x86/boot/bootsect: load the kernel at a new addressJoursoir2021-08-261-1/+2
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* x86/boot/bootsect: improve comments about gdt structJoursoir2021-08-261-2/+4
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* x86/boot/bootsect: move global var boot_driveJoursoir2021-08-261-3/+3
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* x86/boot/bootsect: enter 32-bit protected modeJoursoir2021-08-261-1/+31
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* x86/boot/bootsect: add a filled GDT structureJoursoir2021-08-261-0/+38
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* x86/boot/bootsect: print messages about loadingJoursoir2021-08-261-3/+9
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* x86/boot/bootsect: delete meaningless commentsJoursoir2021-08-261-4/+4
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* x86/boot: add boot sectorJoursoir2021-08-191-0/+60
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* x86/boot: move and rename asm code with multiboot headerJoursoir2021-08-131-0/+114
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* x86/boot: add macros for BIOS print interruptsJoursoir2021-08-131-0/+19