remove duplication
don't use the same name for two different pieces of code
This commit is contained in:
parent
801affcd14
commit
7abf49d2f2
4
asm.h
4
asm.h
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@ -2,10 +2,10 @@
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// macros to create x86 segments from assembler
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// macros to create x86 segments from assembler
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//
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//
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#define SEG_NULL \
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#define SEG_NULLASM \
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.word 0, 0; \
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.word 0, 0; \
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.byte 0, 0, 0, 0
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.byte 0, 0, 0, 0
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#define SEG(type,base,lim) \
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#define SEG_ASM(type,base,lim) \
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.word (((lim) >> 12) & 0xffff), ((base) & 0xffff); \
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.word (((lim) >> 12) & 0xffff), ((base) & 0xffff); \
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.byte (((base) >> 16) & 0xff), (0x90 | (type)), \
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.byte (((base) >> 16) & 0xff), (0x90 | (type)), \
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(0xC0 | (((lim) >> 28) & 0xf)), (((base) >> 24) & 0xff)
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(0xC0 | (((lim) >> 28) & 0xf)), (((base) >> 24) & 0xff)
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@ -87,9 +87,9 @@ spin: jmp spin # ..but in case it does, spin
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.p2align 2 # force 4 byte alignment
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.p2align 2 # force 4 byte alignment
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gdt:
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gdt:
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SEG_NULL # null seg
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SEG_NULLASM # null seg
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SEG(STA_X|STA_R, 0x0, 0xffffffff) # code seg
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SEG_ASM(STA_X|STA_R, 0x0, 0xffffffff) # code seg
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SEG(STA_W, 0x0, 0xffffffff) # data seg
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SEG_ASM(STA_W, 0x0, 0xffffffff) # data seg
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gdtdesc:
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gdtdesc:
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.word 0x17 # sizeof(gdt) - 1
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.word 0x17 # sizeof(gdt) - 1
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@ -70,9 +70,9 @@ protcseg:
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.p2align 2 # force 4 byte alignment
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.p2align 2 # force 4 byte alignment
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gdt:
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gdt:
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SEG_NULL # null seg
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SEG_NULLASM # null seg
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SEG(STA_X|STA_R, 0x0, 0xffffffff) # code seg
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SEG_ASM(STA_X|STA_R, 0x0, 0xffffffff) # code seg
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SEG(STA_W, 0x0, 0xffffffff) # data seg
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SEG_ASM(STA_W, 0x0, 0xffffffff) # data seg
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gdtdesc:
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gdtdesc:
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.word 0x17 # sizeof(gdt) - 1
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.word 0x17 # sizeof(gdt) - 1
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@ -1,5 +1,6 @@
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#include "types.h"
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#include "types.h"
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#include "x86.h"
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#include "x86.h"
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#include "traps.h"
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#include "defs.h"
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#include "defs.h"
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#include "spinlock.h"
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#include "spinlock.h"
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#include "dev.h"
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#include "dev.h"
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1
ide.c
1
ide.c
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@ -8,6 +8,7 @@
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#include "proc.h"
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#include "proc.h"
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#include "defs.h"
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#include "defs.h"
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#include "x86.h"
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#include "x86.h"
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#include "traps.h"
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#include "spinlock.h"
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#include "spinlock.h"
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#define IDE_BSY 0x80
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#define IDE_BSY 0x80
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1
picirq.c
1
picirq.c
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@ -2,6 +2,7 @@
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#include "types.h"
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#include "types.h"
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#include "x86.h"
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#include "x86.h"
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#include "traps.h"
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#include "defs.h"
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#include "defs.h"
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// I/O Addresses of the two 8259A programmable interrupt controllers
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// I/O Addresses of the two 8259A programmable interrupt controllers
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2
traps.h
2
traps.h
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@ -27,6 +27,8 @@
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#define IRQ_OFFSET 32 // IRQ 0 corresponds to int IRQ_OFFSET
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#define IRQ_OFFSET 32 // IRQ 0 corresponds to int IRQ_OFFSET
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#define IRQ_KBD 1
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#define IRQ_IDE 14
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#define IRQ_TIMER 18
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#define IRQ_TIMER 18
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#define IRQ_ERROR 19
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#define IRQ_ERROR 19
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#define IRQ_SPURIOUS 31
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#define IRQ_SPURIOUS 31
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