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Pekka Enberg
b6e5a081c5
The kvm.c file is getting bigger so move CPU emulation code to a separate file. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
#ifndef KVM__CPU_H
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#define KVM__CPU_H
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#include <stdint.h>
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enum eflag_bits {
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EFLAGS_CF = (1UL << 0), /* Carry Flag */
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EFLAGS_PF = (1UL << 2), /* Parity Flag */
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EFLAGS_AF = (1UL << 4), /* Auxiliary Carry Flag */
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EFLAGS_ZF = (1UL << 6), /* Zero Flag */
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EFLAGS_SF = (1UL << 7), /* Sign Flag */
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EFLAGS_TF = (1UL << 8), /* Trap Flag */
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EFLAGS_IF = (1UL << 9), /* Interrupt Enable Flag */
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EFLAGS_DF = (1UL << 10), /* Direction Flag */
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EFLAGS_OF = (1UL << 11), /* Overflow Flag */
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EFLAGS_NT = (1UL << 14), /* Nested Task */
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EFLAGS_RF = (1UL << 16), /* Resume Flag */
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EFLAGS_VM = (1UL << 17), /* Virtual-8086 Mode */
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EFLAGS_AC = (1UL << 18), /* Alignment Check */
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EFLAGS_VIF = (1UL << 19), /* Virtual Interrupt Flag */
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EFLAGS_VIP = (1UL << 20), /* Virtual Interrupt Pending */
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EFLAGS_ID = (1UL << 21), /* ID Flag */
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};
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struct cpu_registers {
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uint32_t eax;
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uint32_t ebx;
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uint32_t ecx;
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uint32_t edx;
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uint32_t esp;
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uint32_t ebp;
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uint32_t esi;
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uint32_t edi;
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uint32_t eip;
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uint32_t eflags;
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};
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struct cpu {
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struct cpu_registers regs;
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};
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struct cpu *cpu__new(void);
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void cpu__reset(struct cpu *self);
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#endif /* KVM__CPU_H */
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