📄 tables.asm
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_GDT ;; first element of GDT is not use. Used as _GDTR dw _GDT_END - _GDT - 1 dd _GDT dw 0 ; limit 00..15 ; base 00..15 ; base 16..23 /-- limit 16..19 ; G D 0 AVL LIMIT(4) P DPL(2) S TYPE(3) A ; base 24..31 ;; kernel codekernel_code dw 0xFFFF dw 0x0000 db 0x00 dw ACC_GRANULARY | ACC_DEF32SIZE | (1111b * ACC_LIMIT_MUL) | \ ACC_PRESENT | ACC_DPL_RING0 | ACC_TYPE_CODE | \ ACC_TYPE_READ | ACC_USERSEG db 0x00 ;; kernel datakernel_data dw 0xFFFF dw 0x0000 db 0x00 dw ACC_GRANULARY | ACC_DEF32SIZE | (1111b * ACC_LIMIT_MUL) | \ ACC_PRESENT | ACC_DPL_RING0 | ACC_TYPE_DATA | \ ACC_TYPE_WRITE | ACC_USERSEG db 0x00 ;; used when return to real modereal_mode_code dw 0xFFFF dw 0x0000 db KERNEL_START_HI dw ACC_PRESENT | ACC_DPL_RING0 | ACC_TYPE_CODE | \ ACC_TYPE_READ | ACC_USERSEG db 0x00 ;; used when return to real modereal_mode_data dw 0xFFFF dw 0x0000 db KERNEL_START_HI dw ACC_PRESENT | ACC_DPL_RING0 | ACC_TYPE_DATA | \ ACC_TYPE_WRITE | ACC_USERSEG db 0x00 ;; task codetask_code dw 0x0000 dw 0x0000 db 0x00 dw ACC_GRANULARY | ACC_DEF32SIZE | (0000b * ACC_LIMIT_MUL) | \ ACC_PRESENT | ACC_DPL_RING0 | ACC_TYPE_CODE | \ ACC_TYPE_READ | ACC_USERSEG db 0x00 ;; task datatask_data dw 0x0000 dw 0x0000 db 0x00 dw ACC_GRANULARY | ACC_DEF32SIZE | (0000b * ACC_LIMIT_MUL) | \ ACC_PRESENT | ACC_DPL_RING0 | ACC_TYPE_DATA | \ ACC_TYPE_WRITE | ACC_USERSEG db 0x00_GDT_END;;;;====;;;;====_RM_IDTR dw 0x400 - 1 dd 0x00000000 dw 0;;;;====;;;;====_IDTR dw _IDT_END - _IDT - 1 dd _IDT_IDT ; dw offsetLo ; dw selector ; db paramsCount ; db access ; dw offsetHi dw Except_00 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_01 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_02 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_03 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_04 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_05 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_06 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_07 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_08 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_09 - KERNEL_START dw kernel_code-_GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_0A - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_0B - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_0C - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_0D - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_0E - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_0F - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_10 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_11 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_12 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_13 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_14 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_15 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_16 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_17 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_18 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_19 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_1A - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_1B - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_1C - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_1D - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_1E - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI dw Except_1F - KERNEL_START dw kernel_code - _GDT db 0 db ACC_TRAPGATE | ACC_PRESENT dw KERNEL_START_HI;;;; int 20 dw IRQ_0 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_1 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_2 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_3 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_4 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_5 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_6 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_7 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_8 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_9 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_10 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_11 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_12 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_13 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_14 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw IRQ_15 - KERNEL_START dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI;;;; int 30 dw Int_GetMessage - KERNEL_START ; 0x30 dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw Int_SendMessageW - KERNEL_START ; 0x31 dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw Int_ProcessMessage - KERNEL_START ; 0x32 dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw Int_RemoveMessage - KERNEL_START ; 0x33 dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI dw Int_SendAnswer - KERNEL_START ; 0x34 dw kernel_code - _GDT db 0 db ACC_INTGATE | ACC_PRESENT dw KERNEL_START_HI_IDT_END;-------------------------------------------------------------------------------memMap equ $ ; Memory map, 128kb, jiao: to big for mememMapEnd equ memMap + 0x20000;-------------------------------------------------------------------------------tasksList equ memMapEndtasksListEnd equ tasksList + MAX_TASKStasks equ tasksListEndtasksEnd equ tasks + MAX_TASKS * s_task.msize⌨️ 快捷键说明
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