static void x86_uinst_parse_odep(struct x86_uinst_t *uinst, int index, struct x86_ctx_t *ctx)
{
struct x86_uinst_t *new_uinst;
enum x86_dep_t mem_regular_dep;
int mem_dep_size;
int dep;
/* Get dependence */
assert(index >= X86_UINST_MAX_IDEPS && index < X86_UINST_MAX_DEPS);
dep = uinst->dep[index];
if (!dep)
return;
/* Memory dependence */
mem_dep_size = x86_uinst_mem_dep_size(uinst, index, ctx, &mem_regular_dep);
if (mem_dep_size)
{
/* If uinst is 'move', just convert it into a 'store' */
if (uinst->opcode == x86_uinst_move)
{
/* Try to add 'ea' as input dependence */
if (x86_uinst_add_idep(uinst, x86_dep_ea))
{
uinst->opcode = x86_uinst_store;
uinst->dep[index] = x86_dep_none;
uinst->address = x86_isa_effective_address(ctx);
uinst->size = mem_dep_size;
return;
}
}
/* Store */
new_uinst = x86_uinst_create();
new_uinst->opcode = x86_uinst_store;
new_uinst->idep[0] = x86_dep_ea;
new_uinst->idep[1] = mem_regular_dep;
new_uinst->address = x86_isa_effective_address(ctx);
new_uinst->size = mem_dep_size;
list_add(x86_uinst_list, new_uinst);
/* Output dependence of instruction is x86_dep_data */
uinst->dep[index] = mem_regular_dep;
return;
}
/* Regular dependence */
x86_uinst_parse_dep(uinst, index, ctx);
}
static void x86_uinst_parse_idep(struct x86_uinst_t *uinst, int index, struct x86_ctx_t *ctx)
{
struct x86_uinst_t *new_uinst;
enum x86_dep_t mem_regular_dep;
int mem_dep_size;
int dep;
/* Get dependence */
assert(index >= 0 && index < X86_UINST_MAX_IDEPS);
dep = uinst->dep[index];
if (!dep)
return;
/* Memory dependence */
mem_dep_size = x86_uinst_mem_dep_size(uinst, index, ctx, &mem_regular_dep);
if (mem_dep_size)
{
/* If uinst is 'move', just convert it into a 'load' */
/* Replace 'rmXXX' by 'ea' dependence */
if (uinst->opcode == x86_uinst_move)
{
uinst->opcode = x86_uinst_load;
uinst->dep[index] = x86_dep_ea;
uinst->address = x86_isa_effective_address(ctx);
uinst->size = mem_dep_size;
return;
}
/* Load */
new_uinst = x86_uinst_create();
new_uinst->opcode = x86_uinst_load;
new_uinst->idep[0] = x86_dep_ea;
new_uinst->odep[0] = mem_regular_dep;
new_uinst->address = x86_isa_effective_address(ctx);
new_uinst->size = mem_dep_size;
list_add(x86_uinst_list, new_uinst);
/* Input dependence of instruction is converted into 'x86_dep_data' */
uinst->dep[index] = mem_regular_dep;
return;
}
/* Regular dependence */
x86_uinst_parse_dep(uinst, index, ctx);
}
static void x86_uinst_emit_effaddr(struct x86_uinst_t *uinst, int index, struct x86_ctx_t *ctx)
{
struct x86_uinst_t *new_uinst;
/* Check if it is a memory dependence */
if (!x86_uinst_mem_dep_size(uinst, index, ctx, NULL))
return;
/* Record occurrence */
x86_uinst_effaddr_emitted = 1;
/* Emit 'effaddr' */
new_uinst = x86_uinst_create();
new_uinst->opcode = x86_uinst_effaddr;
new_uinst->idep[0] = ctx->inst.segment ? ctx->inst.segment - x86_reg_es + x86_dep_es : x86_dep_none;
new_uinst->idep[1] = ctx->inst.ea_base ? ctx->inst.ea_base - x86_reg_eax + x86_dep_eax : x86_dep_none;
new_uinst->idep[2] = ctx->inst.ea_index ? ctx->inst.ea_index - x86_reg_eax + x86_dep_eax : x86_dep_none;
new_uinst->odep[0] = x86_dep_ea;
list_add(x86_uinst_list, new_uinst);
}
void __x86_uinst_new_mem(struct x86_ctx_t *ctx,
enum x86_uinst_opcode_t opcode, uint32_t address, int size,
enum x86_dep_t idep0, enum x86_dep_t idep1, enum x86_dep_t idep2,
enum x86_dep_t odep0, enum x86_dep_t odep1, enum x86_dep_t odep2,
enum x86_dep_t odep3)
{
struct x86_uinst_t *uinst;
int i;
/* Do nothing for functional simulation */
if (x86_emu_kind == x86_emu_kind_functional)
return;
/* Create uinst */
uinst = x86_uinst_create();
uinst->opcode = opcode;
uinst->idep[0] = idep0;
uinst->idep[1] = idep1;
uinst->idep[2] = idep2;
uinst->odep[0] = odep0;
uinst->odep[1] = odep1;
uinst->odep[2] = odep2;
uinst->odep[3] = odep3;
uinst->address = address;
uinst->size = size;
/* Emit effective address computation if needed. */
for (i = 0; !x86_uinst_effaddr_emitted && i < X86_UINST_MAX_DEPS; i++)
x86_uinst_emit_effaddr(uinst, i, ctx);
/* Parse input dependences */
for (i = 0; i < X86_UINST_MAX_IDEPS; i++)
x86_uinst_parse_idep(uinst, i, ctx);
/* Add micro-instruction */
list_add(x86_uinst_list, uinst);
/* Parse output dependences */
for (i = 0; i < X86_UINST_MAX_ODEPS; i++)
x86_uinst_parse_odep(uinst, i + X86_UINST_MAX_IDEPS, ctx);
}
void __x86_uinst_new_mem(X86Context *ctx,
enum x86_uinst_opcode_t opcode, unsigned int address, int size,
enum x86_dep_t idep0, enum x86_dep_t idep1, enum x86_dep_t idep2,
enum x86_dep_t odep0, enum x86_dep_t odep1, enum x86_dep_t odep2,
enum x86_dep_t odep3)
{
struct x86_uinst_t *uinst;
int i;
/* Create micro-instruction */
assert(arch_x86->sim_kind == arch_sim_kind_detailed);
uinst = x86_uinst_create();
uinst->opcode = opcode;
uinst->idep[0] = idep0;
uinst->idep[1] = idep1;
uinst->idep[2] = idep2;
uinst->odep[0] = odep0;
uinst->odep[1] = odep1;
uinst->odep[2] = odep2;
uinst->odep[3] = odep3;
uinst->address = address;
uinst->size = size;
/* Emit effective address computation if needed. */
for (i = 0; !x86_uinst_effaddr_emitted && i < X86_UINST_MAX_DEPS; i++)
x86_uinst_emit_effaddr(uinst, i, ctx);
/* Parse input dependences */
for (i = 0; i < X86_UINST_MAX_IDEPS; i++)
x86_uinst_parse_idep(uinst, i, ctx);
/* Add micro-instruction */
list_add(x86_uinst_list, uinst);
/* Parse output dependences */
for (i = 0; i < X86_UINST_MAX_ODEPS; i++)
x86_uinst_parse_odep(uinst, i + X86_UINST_MAX_IDEPS, ctx);
}