98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
/*******************************************************************************/
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/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
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/* */
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/* Sources modifiées du noyau Linux linux-source-4.15.0/arch/x86/include/uapi/asm/bootparam.h
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/* Sources modifiées du noyau Linux linux-source-4.15.0/arch/x86/include/asm/e820/type.h
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#include "types.h"
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#include "gdt.h"
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#include "boot.h"
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typedef struct miniregs {
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union {
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struct {
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u32 eax;
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u32 ebx;
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u32 ecx;
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u32 edx;
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u32 esi;
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u32 edi;
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u32 ebp;
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u32 eflags;
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};
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struct {
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u16 ax, hax;
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u16 bx, hbx;
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u16 cx, hcx;
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u16 dx, hdx;
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u16 si, hsi;
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u16 di, hdi;
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u16 bp, hbp;
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u16 flags, hflags;
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};
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struct {
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u8 al, ah, hax2, hax3;
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u8 bl, bh, hbx2, hbx3;
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u8 cl, ch, hcx2, hcx3;
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u8 dl, dh, hdx2, hdx3;
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};
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};
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} miniregs __attribute__ ((packed));
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#define STRINGIFY(x) #x
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#define MACRO(x) STRINGIFY(x)
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#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
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#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
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#define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
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#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:(-!!(e)); }))
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#define EFLAGS_CF 0x00000001
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#define LOOPS_8042 100000
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#define FF_8042 32
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#define LOOPS_A20_ENABLE 255
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#define LOOPS_DELAY 32768
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#define SMAP 0x534d4150
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#define interrupt(num, regs) ({\
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asm("mov %[eflagsregs],%%eax\n\
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pushl %%eax\n\
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popfl\n\
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mov %[eaxregs],%%eax\n\
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mov %[ebxregs],%%ebx\n\
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mov %[ecxregs],%%ecx\n\
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mov %[edxregs],%%edx\n\
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mov %[esiregs],%%esi\n\
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mov %[ediregs],%%edi\n\
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int %[numregs]\n\
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pushfl\n\
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popl %[eflagsregs]\n\
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mov %%eax,%[eaxregs]\n\
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mov %%ebx,%[ebxregs]\n\
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mov %%ecx,%[ecxregs]\n\
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mov %%edx,%[edxregs]\n\
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mov %%esi,%[esiregs]\n\
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mov %%edi,%[ediregs]":[eaxregs] "+m" (regs.eax),[ebxregs] "+m" (regs.ebx),[ecxregs] "+m" (regs.ecx),[edxregs] "+m" (regs.edx),[esiregs] "+m" (regs.esi),[ediregs] "+m" (regs.edi),[eflagsregs] "+m" (regs.eflags):[numregs] "i" (num):"%eax","%ebx","%ecx","%edx","%esi","%edi");})
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void cleanreg(miniregs *reg);
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u8 initmemory(void);
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void showchar(u8 achar);
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void showstr(u8 *str);
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u8 gettime(void);
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u8 waitchar(void);
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void initkeyboard(void);
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u8 empty8042(void);
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void iodelay(void);
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u8 testA20(void);
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void enableA20kbc(void);
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void enableA20fast(void);
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u8 enableA20(void);
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void memcpyto(void *src, void *dst, u32 count);
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void makegdtdes(u32 base, u32 limite, u8 acces, u8 flags, gdtdes * desc);
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void initgdt();
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void maskinterrupts(void);
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void initcoprocessor(void);
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void initpmode();
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void main(void);
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