forked from KolibriOS/kolibrios
129 lines
2.0 KiB
C
129 lines
2.0 KiB
C
#ifndef INCLUDE_MEM_H
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#define INCLUDE_MEM_H
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#ifndef INCLUDE_KOLIBRI_H
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#include "../lib/kolibri.h"
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#endif
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inline dword mem_init()
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{
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$push ebx
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$mov eax, 68
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$mov ebx, 11
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$int 0x40
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$pop ebx
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}
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:dword malloc(dword size)
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{
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$push ebx
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$push ecx
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$mov eax, 68
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$mov ebx, 12
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$mov ecx, size
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$int 0x40
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$pop ecx
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$pop ebx
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return EAX;
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}
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:stdcall dword realloc(dword mptr, size)
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{
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$push ebx
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$push ecx
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$push edx
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$mov eax, 68
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$mov ebx, 20
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$mov ecx, size
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$mov edx, mptr
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$int 0x40
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$pop edx
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$pop ecx
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$pop ebx
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return EAX;
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}
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:dword free(dword mptr)
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{
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$push eax
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$push ebx
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$push ecx
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$mov eax, 68
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$mov ebx, 13
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$mov ecx, mptr
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$test ecx, ecx
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$jz end0
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$int 0x40
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@end0:
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$pop ecx
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$pop ebx
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$pop eax
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return 0;
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}
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inline fastcall memmov( EDI, ESI, ECX)
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{
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asm {
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MOV EAX, ECX
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CMP EDI, ESI
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JG L1
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JE L2
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SAR ECX, 2
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JS L2
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REP MOVSD
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MOV ECX, EAX
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AND ECX, 3
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REP MOVSB
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JMP SHORT L2
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L1: LEA ESI, DSDWORD[ ESI+ECX-4]
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LEA EDI, DSDWORD[ EDI+ECX-4]
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SAR ECX, 2
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JS L2
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STD
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REP MOVSD
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MOV ECX, EAX
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AND ECX, 3
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ADD ESI, 3
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ADD EDI, 3
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REP MOVSB
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CLD
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L2:
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}
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}
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#define SHM_OPEN 0x00
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#define SHM_OPEN_ALWAYS 0x04
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#define SHM_CREATE 0x08
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#define SHM_READ 0x00
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#define SHM_WRITE 0x01
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inline fastcall dword memopen(ECX, EDX, ESI)
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{
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$mov eax, 68
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$mov ebx, 22
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// ecx = area name, 31 symbols max
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// edx = area size for SHM_CREATE SHM_OPEN_ALWAYS
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// esi = flags, see the list below:
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$int 0x40
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// eax, edx - please check system documentation
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}
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inline fastcall dword memclose(ECX)
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{
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$mov eax, 68
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$mov ebx, 23
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$int 0x40
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// eax destroyed
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}
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#define mem_Alloc malloc
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#define mem_ReAlloc realloc
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#define mem_Free free
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#define mem_Init mem_init
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#endif |