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dpavlin |
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/* |
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* Cisco router simulation platform. |
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* Copyright (c) 2007 Christophe Fillot (cf@utc.fr) |
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*/ |
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#ifndef __JIT_OP_H__ |
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#define __JIT_OP_H__ |
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#include "utils.h" |
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/* Number of JIT pools */ |
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#define JIT_OP_POOL_NR 8 |
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/* Invalid register in op */ |
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#define JIT_OP_INV_REG -1 |
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/* All flags */ |
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#define JIT_OP_PPC_ALL_FLAGS -1 |
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/* All registers */ |
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#define JIT_OP_ALL_REGS -1 |
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/* JIT opcodes */ |
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enum { |
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JIT_OP_INVALID = 0, |
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JIT_OP_INSN_OUTPUT, |
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JIT_OP_BRANCH_TARGET, |
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JIT_OP_BRANCH_JUMP, |
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JIT_OP_EOB, |
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JIT_OP_LOAD_GPR, |
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JIT_OP_STORE_GPR, |
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JIT_OP_UPDATE_FLAGS, |
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JIT_OP_REQUIRE_FLAGS, |
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JIT_OP_TRASH_FLAGS, |
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JIT_OP_ALTER_HOST_REG, |
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JIT_OP_MOVE_HOST_REG, |
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JIT_OP_SET_HOST_REG_IMM32, |
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}; |
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/* JIT operation */ |
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struct jit_op { |
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u_int opcode; |
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int param[3]; |
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void *arg_ptr; |
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char *insn_name; |
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struct jit_op *next; |
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/* JIT output buffer */ |
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u_int ob_size_index; |
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u_char *ob_final; |
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u_char *ob_ptr; |
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u_char ob_data[0]; |
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}; |
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extern u_int jit_op_blk_sizes[]; |
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/* Find a specific opcode in a JIT op list */ |
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static inline jit_op_t *jit_op_find_opcode(jit_op_t *op_list,u_int opcode) |
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{ |
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jit_op_t *op; |
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for(op=op_list;op;op=op->next) |
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if (op->opcode == opcode) |
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return op; |
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return NULL; |
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} |
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/* Get a JIT op (allocate one if necessary) */ |
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jit_op_t *jit_op_get(cpu_gen_t *cpu,int size_index,u_int opcode); |
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/* Release a JIT op */ |
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void jit_op_free(cpu_gen_t *cpu,jit_op_t *op); |
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/* Free a list of JIT ops */ |
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void jit_op_free_list(cpu_gen_t *cpu,jit_op_t *op_list); |
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/* Initialize JIT op pools for the specified CPU */ |
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int jit_op_init_cpu(cpu_gen_t *cpu); |
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/* Free memory used by pools */ |
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void jit_op_free_pools(cpu_gen_t *cpu); |
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#endif |