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qemu-e2k/target-sparc/translate.c
bellard a0c4cb4a70 sparc fixes 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1117 c046a42c-6fe2-441c-8c8c-71466251a162
2004-10-10 17:46:24 +00:00

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/*
SPARC translation
Copyright (C) 2003 Thomas M. Ogrisegg <tom@fnord.at>
Copyright (C) 2003 Fabrice Bellard
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
TODO-list:
NPC/PC static optimisations (use JUMP_TB when possible)
FPU-Instructions
Privileged instructions
Coprocessor-Instructions
Optimize synthetic instructions
Optional alignment and privileged instruction check
*/
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include "cpu.h"
#include "exec-all.h"
#include "disas.h"
#define DEBUG_DISAS
#define DYNAMIC_PC 1 /* dynamic pc value */
#define JUMP_PC 2 /* dynamic pc value which takes only two values
according to jump_pc[T2] */
typedef struct DisasContext {
target_ulong pc; /* current Program Counter: integer or DYNAMIC_PC */
target_ulong npc; /* next PC: integer or DYNAMIC_PC or JUMP_PC */
target_ulong jump_pc[2]; /* used when JUMP_PC pc value is used */
int is_br;
int mem_idx;
struct TranslationBlock *tb;
} DisasContext;
static uint16_t *gen_opc_ptr;
static uint32_t *gen_opparam_ptr;
extern FILE *logfile;
extern int loglevel;
enum {
#define DEF(s,n,copy_size) INDEX_op_ ## s,
#include "opc.h"
#undef DEF
NB_OPS
};
#include "gen-op.h"
#define GET_FIELD(X, FROM, TO) \
((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1))
#define IS_IMM (insn & (1<<13))
static void disas_sparc_insn(DisasContext * dc);
static GenOpFunc *gen_op_movl_TN_reg[2][32] = {
{
gen_op_movl_g0_T0,
gen_op_movl_g1_T0,
gen_op_movl_g2_T0,
gen_op_movl_g3_T0,
gen_op_movl_g4_T0,
gen_op_movl_g5_T0,
gen_op_movl_g6_T0,
gen_op_movl_g7_T0,
gen_op_movl_o0_T0,
gen_op_movl_o1_T0,
gen_op_movl_o2_T0,
gen_op_movl_o3_T0,
gen_op_movl_o4_T0,
gen_op_movl_o5_T0,
gen_op_movl_o6_T0,
gen_op_movl_o7_T0,
gen_op_movl_l0_T0,
gen_op_movl_l1_T0,
gen_op_movl_l2_T0,
gen_op_movl_l3_T0,
gen_op_movl_l4_T0,
gen_op_movl_l5_T0,
gen_op_movl_l6_T0,
gen_op_movl_l7_T0,
gen_op_movl_i0_T0,
gen_op_movl_i1_T0,
gen_op_movl_i2_T0,
gen_op_movl_i3_T0,
gen_op_movl_i4_T0,
gen_op_movl_i5_T0,
gen_op_movl_i6_T0,
gen_op_movl_i7_T0,
},
{
gen_op_movl_g0_T1,
gen_op_movl_g1_T1,
gen_op_movl_g2_T1,
gen_op_movl_g3_T1,
gen_op_movl_g4_T1,
gen_op_movl_g5_T1,
gen_op_movl_g6_T1,
gen_op_movl_g7_T1,
gen_op_movl_o0_T1,
gen_op_movl_o1_T1,
gen_op_movl_o2_T1,
gen_op_movl_o3_T1,
gen_op_movl_o4_T1,
gen_op_movl_o5_T1,
gen_op_movl_o6_T1,
gen_op_movl_o7_T1,
gen_op_movl_l0_T1,
gen_op_movl_l1_T1,
gen_op_movl_l2_T1,
gen_op_movl_l3_T1,
gen_op_movl_l4_T1,
gen_op_movl_l5_T1,
gen_op_movl_l6_T1,
gen_op_movl_l7_T1,
gen_op_movl_i0_T1,
gen_op_movl_i1_T1,
gen_op_movl_i2_T1,
gen_op_movl_i3_T1,
gen_op_movl_i4_T1,
gen_op_movl_i5_T1,
gen_op_movl_i6_T1,
gen_op_movl_i7_T1,
}
};
static GenOpFunc *gen_op_movl_reg_TN[3][32] = {
{
gen_op_movl_T0_g0,
gen_op_movl_T0_g1,
gen_op_movl_T0_g2,
gen_op_movl_T0_g3,
gen_op_movl_T0_g4,
gen_op_movl_T0_g5,
gen_op_movl_T0_g6,
gen_op_movl_T0_g7,
gen_op_movl_T0_o0,
gen_op_movl_T0_o1,
gen_op_movl_T0_o2,
gen_op_movl_T0_o3,
gen_op_movl_T0_o4,
gen_op_movl_T0_o5,
gen_op_movl_T0_o6,
gen_op_movl_T0_o7,
gen_op_movl_T0_l0,
gen_op_movl_T0_l1,
gen_op_movl_T0_l2,
gen_op_movl_T0_l3,
gen_op_movl_T0_l4,
gen_op_movl_T0_l5,
gen_op_movl_T0_l6,
gen_op_movl_T0_l7,
gen_op_movl_T0_i0,
gen_op_movl_T0_i1,
gen_op_movl_T0_i2,
gen_op_movl_T0_i3,
gen_op_movl_T0_i4,
gen_op_movl_T0_i5,
gen_op_movl_T0_i6,
gen_op_movl_T0_i7,
},
{
gen_op_movl_T1_g0,
gen_op_movl_T1_g1,
gen_op_movl_T1_g2,
gen_op_movl_T1_g3,
gen_op_movl_T1_g4,
gen_op_movl_T1_g5,
gen_op_movl_T1_g6,
gen_op_movl_T1_g7,
gen_op_movl_T1_o0,
gen_op_movl_T1_o1,
gen_op_movl_T1_o2,
gen_op_movl_T1_o3,
gen_op_movl_T1_o4,
gen_op_movl_T1_o5,
gen_op_movl_T1_o6,
gen_op_movl_T1_o7,
gen_op_movl_T1_l0,
gen_op_movl_T1_l1,
gen_op_movl_T1_l2,
gen_op_movl_T1_l3,
gen_op_movl_T1_l4,
gen_op_movl_T1_l5,
gen_op_movl_T1_l6,
gen_op_movl_T1_l7,
gen_op_movl_T1_i0,
gen_op_movl_T1_i1,
gen_op_movl_T1_i2,
gen_op_movl_T1_i3,
gen_op_movl_T1_i4,
gen_op_movl_T1_i5,
gen_op_movl_T1_i6,
gen_op_movl_T1_i7,
},
{
gen_op_movl_T2_g0,
gen_op_movl_T2_g1,
gen_op_movl_T2_g2,
gen_op_movl_T2_g3,
gen_op_movl_T2_g4,
gen_op_movl_T2_g5,
gen_op_movl_T2_g6,
gen_op_movl_T2_g7,
gen_op_movl_T2_o0,
gen_op_movl_T2_o1,
gen_op_movl_T2_o2,
gen_op_movl_T2_o3,
gen_op_movl_T2_o4,
gen_op_movl_T2_o5,
gen_op_movl_T2_o6,
gen_op_movl_T2_o7,
gen_op_movl_T2_l0,
gen_op_movl_T2_l1,
gen_op_movl_T2_l2,
gen_op_movl_T2_l3,
gen_op_movl_T2_l4,
gen_op_movl_T2_l5,
gen_op_movl_T2_l6,
gen_op_movl_T2_l7,
gen_op_movl_T2_i0,
gen_op_movl_T2_i1,
gen_op_movl_T2_i2,
gen_op_movl_T2_i3,
gen_op_movl_T2_i4,
gen_op_movl_T2_i5,
gen_op_movl_T2_i6,
gen_op_movl_T2_i7,
}
};
static GenOpFunc1 *gen_op_movl_TN_im[3] = {
gen_op_movl_T0_im,
gen_op_movl_T1_im,
gen_op_movl_T2_im
};
#define GEN32(func, NAME) \
static GenOpFunc *NAME ## _table [32] = { \
NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \
NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \
NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \
NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \
NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \
NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \
NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \
NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \
}; \
static inline void func(int n) \
{ \
NAME ## _table[n](); \
}
/* floating point registers moves */
GEN32(gen_op_load_fpr_FT0, gen_op_load_fpr_FT0_fprf);
GEN32(gen_op_load_fpr_FT1, gen_op_load_fpr_FT1_fprf);
GEN32(gen_op_load_fpr_FT2, gen_op_load_fpr_FT2_fprf);
GEN32(gen_op_store_FT0_fpr, gen_op_store_FT0_fpr_fprf);
GEN32(gen_op_store_FT1_fpr, gen_op_store_FT1_fpr_fprf);
GEN32(gen_op_store_FT2_fpr, gen_op_store_FT2_fpr_fprf);
GEN32(gen_op_load_fpr_DT0, gen_op_load_fpr_DT0_fprf);
GEN32(gen_op_load_fpr_DT1, gen_op_load_fpr_DT1_fprf);
GEN32(gen_op_load_fpr_DT2, gen_op_load_fpr_DT2_fprf);
GEN32(gen_op_store_DT0_fpr, gen_op_store_DT0_fpr_fprf);
GEN32(gen_op_store_DT1_fpr, gen_op_store_DT1_fpr_fprf);
GEN32(gen_op_store_DT2_fpr, gen_op_store_DT2_fpr_fprf);
#if defined(CONFIG_USER_ONLY)
#define gen_op_ldst(name) gen_op_##name##_raw()
#define OP_LD_TABLE(width) \
static void gen_op_##width##a(int insn, int is_ld, int size, int sign) \
{ \
}
#define supervisor(dc) 0
#else
#define gen_op_ldst(name) (*gen_op_##name[dc->mem_idx])()
#define OP_LD_TABLE(width) \
static GenOpFunc *gen_op_##width[] = { \
&gen_op_##width##_user, \
&gen_op_##width##_kernel, \
}; \
\
static void gen_op_##width##a(int insn, int is_ld, int size, int sign) \
{ \
int asi; \
\
asi = GET_FIELD(insn, 19, 26); \
switch (asi) { \
case 10: /* User data access */ \
gen_op_##width##_user(); \
break; \
case 11: /* Supervisor data access */ \
gen_op_##width##_kernel(); \
break; \
case 0x20 ... 0x2f: /* MMU passthrough */ \
if (is_ld) \
gen_op_ld_asi(asi, size, sign); \
else \
gen_op_st_asi(asi, size, sign); \
break; \
default: \
if (is_ld) \
gen_op_ld_asi(asi, size, sign); \
else \
gen_op_st_asi(asi, size, sign); \
break; \
} \
}
#define supervisor(dc) (dc->mem_idx == 1)
#endif
OP_LD_TABLE(ld);
OP_LD_TABLE(st);
OP_LD_TABLE(ldub);
OP_LD_TABLE(lduh);
OP_LD_TABLE(ldsb);
OP_LD_TABLE(ldsh);
OP_LD_TABLE(stb);
OP_LD_TABLE(sth);
OP_LD_TABLE(std);
OP_LD_TABLE(ldstub);
OP_LD_TABLE(swap);
OP_LD_TABLE(ldd);
OP_LD_TABLE(stf);
OP_LD_TABLE(stdf);
OP_LD_TABLE(ldf);
OP_LD_TABLE(lddf);
static inline void gen_movl_imm_TN(int reg, int imm)
{
gen_op_movl_TN_im[reg] (imm);
}
static inline void gen_movl_imm_T1(int val)
{
gen_movl_imm_TN(1, val);
}
static inline void gen_movl_imm_T0(int val)
{
gen_movl_imm_TN(0, val);
}
static inline void gen_movl_reg_TN(int reg, int t)
{
if (reg)
gen_op_movl_reg_TN[t][reg] ();
else
gen_movl_imm_TN(t, 0);
}
static inline void gen_movl_reg_T0(int reg)
{
gen_movl_reg_TN(reg, 0);
}
static inline void gen_movl_reg_T1(int reg)
{
gen_movl_reg_TN(reg, 1);
}
static inline void gen_movl_reg_T2(int reg)
{
gen_movl_reg_TN(reg, 2);
}
static inline void gen_movl_TN_reg(int reg, int t)
{
if (reg)
gen_op_movl_TN_reg[t][reg] ();
}
static inline void gen_movl_T0_reg(int reg)
{
gen_movl_TN_reg(reg, 0);
}
static inline void gen_movl_T1_reg(int reg)
{
gen_movl_TN_reg(reg, 1);
}
/* call this function before using T2 as it may have been set for a jump */
static inline void flush_T2(DisasContext * dc)
{
if (dc->npc == JUMP_PC) {
gen_op_generic_branch(dc->jump_pc[0], dc->jump_pc[1]);
dc->npc = DYNAMIC_PC;
}
}
static inline void save_npc(DisasContext * dc)
{
if (dc->npc == JUMP_PC) {
gen_op_generic_branch(dc->jump_pc[0], dc->jump_pc[1]);
dc->npc = DYNAMIC_PC;
} else if (dc->npc != DYNAMIC_PC) {
gen_op_movl_npc_im(dc->npc);
}
}
static inline void save_state(DisasContext * dc)
{
gen_op_jmp_im((uint32_t)dc->pc);
save_npc(dc);
}
static void gen_cond(int cond)
{
switch (cond) {
case 0x0:
gen_op_movl_T2_0();
break;
case 0x1:
gen_op_eval_be();
break;
case 0x2:
gen_op_eval_ble();
break;
case 0x3:
gen_op_eval_bl();
break;
case 0x4:
gen_op_eval_bleu();
break;
case 0x5:
gen_op_eval_bcs();
break;
case 0x6:
gen_op_eval_bneg();
break;
case 0x7:
gen_op_eval_bvs();
break;
case 0x8:
gen_op_movl_T2_1();
break;
case 0x9:
gen_op_eval_bne();
break;
case 0xa:
gen_op_eval_bg();
break;
case 0xb:
gen_op_eval_bge();
break;
case 0xc:
gen_op_eval_bgu();
break;
case 0xd:
gen_op_eval_bcc();
break;
case 0xe:
gen_op_eval_bpos();
break;
default:
case 0xf:
gen_op_eval_bvc();
break;
}
}
static void gen_fcond(int cond)
{
switch (cond) {
case 0x0:
gen_op_movl_T2_0();
break;
case 0x1:
gen_op_eval_fbne();
break;
case 0x2:
gen_op_eval_fblg();
break;
case 0x3:
gen_op_eval_fbul();
break;
case 0x4:
gen_op_eval_fbl();
break;
case 0x5:
gen_op_eval_fbug();
break;
case 0x6:
gen_op_eval_fbg();
break;
case 0x7:
gen_op_eval_fbu();
break;
case 0x8:
gen_op_movl_T2_1();
break;
case 0x9:
gen_op_eval_fbe();
break;
case 0xa:
gen_op_eval_fbue();
break;
case 0xb:
gen_op_eval_fbge();
break;
case 0xc:
gen_op_eval_fbuge();
break;
case 0xd:
gen_op_eval_fble();
break;
case 0xe:
gen_op_eval_fbule();
break;
default:
case 0xf:
gen_op_eval_fbo();
break;
}
}
static void do_branch(DisasContext * dc, uint32_t target, uint32_t insn)
{
unsigned int cond = GET_FIELD(insn, 3, 6), a = (insn & (1 << 29));
target += (uint32_t) dc->pc;
if (cond == 0x0) {
/* unconditional not taken */
if (a) {
dc->pc = dc->npc + 4;
dc->npc = dc->pc + 4;
} else {
dc->pc = dc->npc;
dc->npc = dc->pc + 4;
}
} else if (cond == 0x8) {
/* unconditional taken */
if (a) {
dc->pc = target;
dc->npc = dc->pc + 4;
} else {
dc->pc = dc->npc;
dc->npc = target;
}
} else {
flush_T2(dc);
gen_cond(cond);
if (a) {
gen_op_branch_a((long)dc->tb, target, dc->npc);
dc->is_br = 1;
} else {
dc->pc = dc->npc;
dc->jump_pc[0] = target;
dc->jump_pc[1] = dc->npc + 4;
dc->npc = JUMP_PC;
}
}
}
static void do_fbranch(DisasContext * dc, uint32_t target, uint32_t insn)
{
unsigned int cond = GET_FIELD(insn, 3, 6), a = (insn & (1 << 29));
target += (uint32_t) dc->pc;
if (cond == 0x0) {
/* unconditional not taken */
if (a) {
dc->pc = dc->npc + 4;
dc->npc = dc->pc + 4;
} else {
dc->pc = dc->npc;
dc->npc = dc->pc + 4;
}
} else if (cond == 0x8) {
/* unconditional taken */
if (a) {
dc->pc = target;
dc->npc = dc->pc + 4;
} else {
dc->pc = dc->npc;
dc->npc = target;
}
} else {
flush_T2(dc);
gen_fcond(cond);
if (a) {
gen_op_branch_a((long)dc->tb, target, dc->npc);
dc->is_br = 1;
} else {
dc->pc = dc->npc;
dc->jump_pc[0] = target;
dc->jump_pc[1] = dc->npc + 4;
dc->npc = JUMP_PC;
}
}
}
static void gen_debug(DisasContext *s, uint32_t pc)
{
gen_op_jmp_im(pc);
gen_op_debug();
s->is_br = 1;
}
#define GET_FIELDs(x,a,b) sign_extend (GET_FIELD(x,a,b), (b) - (a) + 1)
static int sign_extend(int x, int len)
{
len = 32 - len;
return (x << len) >> len;
}
static void disas_sparc_insn(DisasContext * dc)
{
unsigned int insn, opc, rs1, rs2, rd;
insn = ldl_code((uint8_t *)dc->pc);
opc = GET_FIELD(insn, 0, 1);
rd = GET_FIELD(insn, 2, 6);
switch (opc) {
case 0: /* branches/sethi */
{
unsigned int xop = GET_FIELD(insn, 7, 9);
int target;
target = GET_FIELD(insn, 10, 31);
switch (xop) {
case 0x0:
case 0x1: /* UNIMPL */
default:
goto illegal_insn;
case 0x2: /* BN+x */
{
target <<= 2;
target = sign_extend(target, 22);
do_branch(dc, target, insn);
goto jmp_insn;
}
case 0x6: /* FBN+x */
{
target <<= 2;
target = sign_extend(target, 22);
do_fbranch(dc, target, insn);
goto jmp_insn;
}
case 0x4: /* SETHI */
gen_movl_imm_T0(target << 10);
gen_movl_T0_reg(rd);
break;
case 0x5: /*CBN+x */
break;
}
break;
}
case 1:
/*CALL*/ {
unsigned int target = GET_FIELDs(insn, 2, 31) << 2;
gen_op_movl_T0_im((long) (dc->pc));
gen_movl_T0_reg(15);
target = dc->pc + target;
dc->pc = dc->npc;
dc->npc = target;
}
goto jmp_insn;
case 2: /* FPU & Logical Operations */
{
unsigned int xop = GET_FIELD(insn, 7, 12);
if (xop == 0x3a) { /* generate trap */
int cond;
rs1 = GET_FIELD(insn, 13, 17);
gen_movl_reg_T0(rs1);
if (IS_IMM) {
rs2 = GET_FIELD(insn, 25, 31);
if (rs2 != 0) {
gen_movl_imm_T1(rs2);
gen_op_add_T1_T0();
}
} else {
rs2 = GET_FIELD(insn, 27, 31);
gen_movl_reg_T1(rs2);
gen_op_add_T1_T0();
}
save_state(dc);
cond = GET_FIELD(insn, 3, 6);
if (cond == 0x8) {
gen_op_trap_T0();
dc->is_br = 1;
goto jmp_insn;
} else {
gen_op_trapcc_T0();
}
} else if (xop == 0x28) {
rs1 = GET_FIELD(insn, 13, 17);
switch(rs1) {
case 0: /* rdy */
gen_op_rdy();
gen_movl_T0_reg(rd);
break;
case 15: /* stbar */
break; /* no effect? */
default:
goto illegal_insn;
}
#if !defined(CONFIG_USER_ONLY)
} else if (xop == 0x29) {
if (!supervisor(dc))
goto priv_insn;
gen_op_rdpsr();
gen_movl_T0_reg(rd);
break;
} else if (xop == 0x2a) {
if (!supervisor(dc))
goto priv_insn;
gen_op_rdwim();
gen_movl_T0_reg(rd);
break;
} else if (xop == 0x2b) {
if (!supervisor(dc))
goto priv_insn;
gen_op_rdtbr();
gen_movl_T0_reg(rd);
break;
#endif
} else if (xop == 0x34 || xop == 0x35) { /* FPU Operations */
rs1 = GET_FIELD(insn, 13, 17);
rs2 = GET_FIELD(insn, 27, 31);
xop = GET_FIELD(insn, 18, 26);
switch (xop) {
case 0x1: /* fmovs */
gen_op_load_fpr_FT0(rs2);
gen_op_store_FT0_fpr(rd);
break;
case 0x5: /* fnegs */
gen_op_load_fpr_FT1(rs2);
gen_op_fnegs();
gen_op_store_FT0_fpr(rd);
break;
case 0x9: /* fabss */
gen_op_load_fpr_FT1(rs2);
gen_op_fabss();
gen_op_store_FT0_fpr(rd);
break;
case 0x29: /* fsqrts */
gen_op_load_fpr_FT1(rs2);
gen_op_fsqrts();
gen_op_store_FT0_fpr(rd);
break;
case 0x2a: /* fsqrtd */
gen_op_load_fpr_DT1(rs2);
gen_op_fsqrtd();
gen_op_store_DT0_fpr(rd);
break;
case 0x41:
gen_op_load_fpr_FT0(rs1);
gen_op_load_fpr_FT1(rs2);
gen_op_fadds();
gen_op_store_FT0_fpr(rd);
break;
case 0x42:
gen_op_load_fpr_DT0(rs1);
gen_op_load_fpr_DT1(rs2);
gen_op_faddd();
gen_op_store_DT0_fpr(rd);
break;
case 0x45:
gen_op_load_fpr_FT0(rs1);
gen_op_load_fpr_FT1(rs2);
gen_op_fsubs();
gen_op_store_FT0_fpr(rd);
break;
case 0x46:
gen_op_load_fpr_DT0(rs1);
gen_op_load_fpr_DT1(rs2);
gen_op_fsubd();
gen_op_store_DT0_fpr(rd);
break;
case 0x49:
gen_op_load_fpr_FT0(rs1);
gen_op_load_fpr_FT1(rs2);
gen_op_fmuls();
gen_op_store_FT0_fpr(rd);
break;
case 0x4a:
gen_op_load_fpr_DT0(rs1);
gen_op_load_fpr_DT1(rs2);
gen_op_fmuld();
gen_op_store_DT0_fpr(rd);
break;
case 0x4d:
gen_op_load_fpr_FT0(rs1);
gen_op_load_fpr_FT1(rs2);
gen_op_fdivs();
gen_op_store_FT0_fpr(rd);
break;
case 0x4e:
gen_op_load_fpr_DT0(rs1);
gen_op_load_fpr_DT1(rs2);
gen_op_fdivd();
gen_op_store_DT0_fpr(rd);
break;
case 0x51:
gen_op_load_fpr_FT0(rs1);
gen_op_load_fpr_FT1(rs2);
gen_op_fcmps();
break;
case 0x52:
gen_op_load_fpr_DT0(rs1);
gen_op_load_fpr_DT1(rs2);
gen_op_fcmpd();
break;
case 0x55: /* fcmpes */
gen_op_load_fpr_FT0(rs1);
gen_op_load_fpr_FT1(rs2);
gen_op_fcmps(); /* XXX */
break;
case 0x56: /* fcmped */
gen_op_load_fpr_DT0(rs1);
gen_op_load_fpr_DT1(rs2);
gen_op_fcmpd(); /* XXX */
break;
case 0x69:
gen_op_load_fpr_FT0(rs1);
gen_op_load_fpr_FT1(rs2);
gen_op_fsmuld();
gen_op_store_DT0_fpr(rd);
break;
case 0xc4:
gen_op_load_fpr_FT1(rs2);
gen_op_fitos();
gen_op_store_FT0_fpr(rd);
break;
case 0xc6:
gen_op_load_fpr_DT1(rs2);
gen_op_fdtos();
gen_op_store_FT0_fpr(rd);
break;
case 0xc8:
gen_op_load_fpr_FT1(rs2);
gen_op_fitod();
gen_op_store_DT0_fpr(rd);
break;
case 0xc9:
gen_op_load_fpr_FT1(rs2);
gen_op_fstod();
gen_op_store_DT0_fpr(rd);
break;
case 0xd1:
gen_op_load_fpr_FT1(rs2);
gen_op_fstoi();
gen_op_store_FT0_fpr(rd);
break;
case 0xd2:
gen_op_load_fpr_DT1(rs2);
gen_op_fdtoi();
gen_op_store_FT0_fpr(rd);
break;
default:
goto illegal_insn;
}
} else {
rs1 = GET_FIELD(insn, 13, 17);
gen_movl_reg_T0(rs1);
if (IS_IMM) { /* immediate */
rs2 = GET_FIELDs(insn, 19, 31);
gen_movl_imm_T1(rs2);
} else { /* register */
rs2 = GET_FIELD(insn, 27, 31);
gen_movl_reg_T1(rs2);
}
if (xop < 0x20) {
switch (xop & ~0x10) {
case 0x0:
if (xop & 0x10)
gen_op_add_T1_T0_cc();
else
gen_op_add_T1_T0();
break;
case 0x1:
gen_op_and_T1_T0();
if (xop & 0x10)
gen_op_logic_T0_cc();
break;
case 0x2:
gen_op_or_T1_T0();
if (xop & 0x10)
gen_op_logic_T0_cc();
break;
case 0x3:
gen_op_xor_T1_T0();
if (xop & 0x10)
gen_op_logic_T0_cc();
break;
case 0x4:
if (xop & 0x10)
gen_op_sub_T1_T0_cc();
else
gen_op_sub_T1_T0();
break;
case 0x5:
gen_op_andn_T1_T0();
if (xop & 0x10)
gen_op_logic_T0_cc();
break;
case 0x6:
gen_op_orn_T1_T0();
if (xop & 0x10)
gen_op_logic_T0_cc();
break;
case 0x7:
gen_op_xnor_T1_T0();
if (xop & 0x10)
gen_op_logic_T0_cc();
break;
case 0x8:
gen_op_addx_T1_T0();
if (xop & 0x10)
gen_op_set_flags();
break;
case 0xa:
gen_op_umul_T1_T0();
if (xop & 0x10)
gen_op_logic_T0_cc();
break;
case 0xb:
gen_op_smul_T1_T0();
if (xop & 0x10)
gen_op_logic_T0_cc();
break;
case 0xc:
gen_op_subx_T1_T0();
if (xop & 0x10)
gen_op_set_flags();
break;
case 0xe:
gen_op_udiv_T1_T0();
if (xop & 0x10)
gen_op_div_cc();
break;
case 0xf:
gen_op_sdiv_T1_T0();
if (xop & 0x10)
gen_op_div_cc();
break;
default:
goto illegal_insn;
}
gen_movl_T0_reg(rd);
} else {
switch (xop) {
case 0x24: /* mulscc */
gen_op_mulscc_T1_T0();
gen_movl_T0_reg(rd);
break;
case 0x25: /* SLL */
gen_op_sll();
gen_movl_T0_reg(rd);
break;
case 0x26:
gen_op_srl();
gen_movl_T0_reg(rd);
break;
case 0x27:
gen_op_sra();
gen_movl_T0_reg(rd);
break;
case 0x30:
{
gen_op_xor_T1_T0();
switch(rd) {
case 0:
gen_op_wry();
break;
default:
goto illegal_insn;
}
}
break;
#if !defined(CONFIG_USER_ONLY)
case 0x31:
{
if (!supervisor(dc))
goto priv_insn;
gen_op_xor_T1_T0();
gen_op_wrpsr();
}
break;
case 0x32:
{
if (!supervisor(dc))
goto priv_insn;
gen_op_xor_T1_T0();
gen_op_wrwim();
}
break;
case 0x33:
{
if (!supervisor(dc))
goto priv_insn;
gen_op_xor_T1_T0();
gen_op_wrtbr();
}
break;
#endif
case 0x38: /* jmpl */
{
gen_op_add_T1_T0();
gen_op_movl_npc_T0();
if (rd != 0) {
gen_op_movl_T0_im((long) (dc->pc));
gen_movl_T0_reg(rd);
}
dc->pc = dc->npc;
dc->npc = DYNAMIC_PC;
}
goto jmp_insn;
#if !defined(CONFIG_USER_ONLY)
case 0x39: /* rett */
{
if (!supervisor(dc))
goto priv_insn;
gen_op_add_T1_T0();
gen_op_movl_npc_T0();
gen_op_rett();
#if 0
dc->pc = dc->npc;
dc->npc = DYNAMIC_PC;
#endif
}
#if 0
goto jmp_insn;
#endif
break;
#endif
case 0x3b: /* flush */
gen_op_add_T1_T0();
gen_op_flush_T0();
break;
case 0x3c: /* save */
save_state(dc);
gen_op_add_T1_T0();
gen_op_save();
gen_movl_T0_reg(rd);
break;
case 0x3d: /* restore */
save_state(dc);
gen_op_add_T1_T0();
gen_op_restore();
gen_movl_T0_reg(rd);
break;
default:
goto illegal_insn;
}
}
}
break;
}
case 3: /* load/store instructions */
{
unsigned int xop = GET_FIELD(insn, 7, 12);
rs1 = GET_FIELD(insn, 13, 17);
gen_movl_reg_T0(rs1);
if (IS_IMM) { /* immediate */
rs2 = GET_FIELDs(insn, 19, 31);
if (rs2 != 0) {
gen_movl_imm_T1(rs2);
gen_op_add_T1_T0();
}
} else { /* register */
rs2 = GET_FIELD(insn, 27, 31);
gen_movl_reg_T1(rs2);
gen_op_add_T1_T0();
}
if (xop < 4 || (xop > 7 && xop < 0x14) || \
(xop > 0x17 && xop < 0x20)) {
switch (xop) {
case 0x0: /* load word */
gen_op_ldst(ld);
break;
case 0x1: /* load unsigned byte */
gen_op_ldst(ldub);
break;
case 0x2: /* load unsigned halfword */
gen_op_ldst(lduh);
break;
case 0x3: /* load double word */
gen_op_ldst(ldd);
gen_movl_T0_reg(rd + 1);
break;
case 0x9: /* load signed byte */
gen_op_ldst(ldsb);
break;
case 0xa: /* load signed halfword */
gen_op_ldst(ldsh);
break;
case 0xd: /* ldstub -- XXX: should be atomically */
gen_op_ldst(ldstub);
break;
case 0x0f: /* swap register with memory. Also atomically */
gen_op_ldst(swap);
break;
case 0x10: /* load word alternate */
if (!supervisor(dc))
goto priv_insn;
gen_op_lda(insn, 1, 4, 0);
break;
case 0x11: /* load unsigned byte alternate */
if (!supervisor(dc))
goto priv_insn;
gen_op_lduba(insn, 1, 1, 0);
break;
case 0x12: /* load unsigned halfword alternate */
if (!supervisor(dc))
goto priv_insn;
gen_op_lduha(insn, 1, 2, 0);
break;
case 0x13: /* load double word alternate */
if (!supervisor(dc))
goto priv_insn;
gen_op_ldda(insn, 1, 8, 0);
gen_movl_T0_reg(rd + 1);
break;
case 0x19: /* load signed byte alternate */
if (!supervisor(dc))
goto priv_insn;
gen_op_ldsba(insn, 1, 1, 1);
break;
case 0x1a: /* load signed halfword alternate */
if (!supervisor(dc))
goto priv_insn;
gen_op_ldsha(insn, 1, 2 ,1);
break;
case 0x1d: /* ldstuba -- XXX: should be atomically */
if (!supervisor(dc))
goto priv_insn;
gen_op_ldstuba(insn, 1, 1, 0);
break;
case 0x1f: /* swap reg with alt. memory. Also atomically */
if (!supervisor(dc))
goto priv_insn;
gen_op_swapa(insn, 1, 4, 0);
break;
}
gen_movl_T1_reg(rd);
} else if (xop >= 0x20 && xop < 0x24) {
switch (xop) {
case 0x20: /* load fpreg */
gen_op_ldst(ldf);
gen_op_store_FT0_fpr(rd);
break;
case 0x21: /* load fsr */
gen_op_ldfsr();
break;
case 0x23: /* load double fpreg */
gen_op_ldst(lddf);
gen_op_store_DT0_fpr(rd);
break;
}
} else if (xop < 8 || (xop >= 0x14 && xop < 0x18)) {
gen_movl_reg_T1(rd);
switch (xop) {
case 0x4:
gen_op_ldst(st);
break;
case 0x5:
gen_op_ldst(stb);
break;
case 0x6:
gen_op_ldst(sth);
break;
case 0x7:
flush_T2(dc);
gen_movl_reg_T2(rd + 1);
gen_op_ldst(std);
break;
case 0x14:
if (!supervisor(dc))
goto priv_insn;
gen_op_sta(insn, 0, 4, 0);
break;
case 0x15:
if (!supervisor(dc))
goto priv_insn;
gen_op_stba(insn, 0, 1, 0);
break;
case 0x16:
if (!supervisor(dc))
goto priv_insn;
gen_op_stha(insn, 0, 2, 0);
break;
case 0x17:
if (!supervisor(dc))
goto priv_insn;
flush_T2(dc);
gen_movl_reg_T2(rd + 1);
gen_op_stda(insn, 0, 8, 0);
break;
}
} else if (xop > 0x23 && xop < 0x28) {
switch (xop) {
case 0x24:
gen_op_load_fpr_FT0(rd);
gen_op_ldst(stf);
break;
case 0x25:
gen_op_stfsr();
break;
case 0x27:
gen_op_load_fpr_DT0(rd);
gen_op_ldst(stdf);
break;
}
} else if (xop > 0x33 && xop < 0x38) {
/* Co-processor */
}
}
}
/* default case for non jump instructions */
if (dc->npc == DYNAMIC_PC) {
dc->pc = DYNAMIC_PC;
gen_op_next_insn();
} else if (dc->npc == JUMP_PC) {
/* we can do a static jump */
gen_op_branch2((long)dc->tb, dc->jump_pc[0], dc->jump_pc[1]);
dc->is_br = 1;
} else {
dc->pc = dc->npc;
dc->npc = dc->npc + 4;
}
jmp_insn:;
return;
illegal_insn:
save_state(dc);
gen_op_exception(TT_ILL_INSN);
dc->is_br = 1;
return;
priv_insn:
save_state(dc);
gen_op_exception(TT_PRIV_INSN);
dc->is_br = 1;
}
static inline int gen_intermediate_code_internal(TranslationBlock * tb,
int spc, CPUSPARCState *env)
{
target_ulong pc_start, last_pc;
uint16_t *gen_opc_end;
DisasContext dc1, *dc = &dc1;
int j, lj = -1;
memset(dc, 0, sizeof(DisasContext));
dc->tb = tb;
pc_start = tb->pc;
dc->pc = pc_start;
dc->npc = (target_ulong) tb->cs_base;
#if defined(CONFIG_USER_ONLY)
dc->mem_idx = 0;
#else
dc->mem_idx = ((env->psrs) != 0);
#endif
gen_opc_ptr = gen_opc_buf;
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
gen_opparam_ptr = gen_opparam_buf;
do {
if (env->nb_breakpoints > 0) {
for(j = 0; j < env->nb_breakpoints; j++) {
if (env->breakpoints[j] == dc->pc) {
gen_debug(dc, dc->pc);
break;
}
}
}
if (spc) {
if (loglevel > 0)
fprintf(logfile, "Search PC...\n");
j = gen_opc_ptr - gen_opc_buf;
if (lj < j) {
lj++;
while (lj < j)
gen_opc_instr_start[lj++] = 0;
gen_opc_pc[lj] = dc->pc;
gen_opc_npc[lj] = dc->npc;
gen_opc_instr_start[lj] = 1;
}
}
last_pc = dc->pc;
disas_sparc_insn(dc);
if (dc->is_br)
break;
/* if the next PC is different, we abort now */
if (dc->pc != (last_pc + 4))
break;
} while ((gen_opc_ptr < gen_opc_end) &&
(dc->pc - pc_start) < (TARGET_PAGE_SIZE - 32));
if (!dc->is_br) {
if (dc->pc != DYNAMIC_PC &&
(dc->npc != DYNAMIC_PC && dc->npc != JUMP_PC)) {
/* static PC and NPC: we can use direct chaining */
gen_op_branch((long)tb, dc->pc, dc->npc);
} else {
if (dc->pc != DYNAMIC_PC)
gen_op_jmp_im(dc->pc);
save_npc(dc);
gen_op_movl_T0_0();
gen_op_exit_tb();
}
}
*gen_opc_ptr = INDEX_op_end;
if (spc) {
j = gen_opc_ptr - gen_opc_buf;
lj++;
while (lj <= j)
gen_opc_instr_start[lj++] = 0;
tb->size = 0;
#if 0
if (loglevel > 0) {
page_dump(logfile);
}
#endif
} else {
tb->size = dc->npc - pc_start;
}
#ifdef DEBUG_DISAS
if (loglevel & CPU_LOG_TB_IN_ASM) {
fprintf(logfile, "--------------\n");
fprintf(logfile, "IN: %s\n", lookup_symbol((uint8_t *)pc_start));
disas(logfile, (uint8_t *)pc_start, last_pc + 4 - pc_start, 0, 0);
fprintf(logfile, "\n");
if (loglevel & CPU_LOG_TB_OP) {
fprintf(logfile, "OP:\n");
dump_ops(gen_opc_buf, gen_opparam_buf);
fprintf(logfile, "\n");
}
}
#endif
return 0;
}
int gen_intermediate_code(CPUSPARCState * env, TranslationBlock * tb)
{
return gen_intermediate_code_internal(tb, 0, env);
}
int gen_intermediate_code_pc(CPUSPARCState * env, TranslationBlock * tb)
{
return gen_intermediate_code_internal(tb, 1, env);
}
CPUSPARCState *cpu_sparc_init(void)
{
CPUSPARCState *env;
cpu_exec_init();
if (!(env = malloc(sizeof(CPUSPARCState))))
return (NULL);
memset(env, 0, sizeof(*env));
env->cwp = 0;
env->wim = 1;
env->regwptr = env->regbase + (env->cwp * 16);
#if defined(CONFIG_USER_ONLY)
env->user_mode_only = 1;
#else
/* Emulate Prom */
env->psrs = 1;
env->pc = 0x4000;
env->npc = env->pc + 4;
env->mmuregs[0] = (0x10<<24) | MMU_E; /* Impl 1, ver 0, MMU Enabled */
env->mmuregs[1] = 0x3000 >> 4; /* MMU Context table */
#endif
cpu_single_env = env;
return (env);
}
#define GET_FLAG(a,b) ((env->psr & a)?b:'-')
void cpu_dump_state(CPUState *env, FILE *f,
int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
int flags)
{
int i, x;
cpu_fprintf(f, "pc: 0x%08x npc: 0x%08x\n", (int) env->pc, (int) env->npc);
cpu_fprintf(f, "General Registers:\n");
for (i = 0; i < 4; i++)
cpu_fprintf(f, "%%g%c: 0x%08x\t", i + '0', env->gregs[i]);
cpu_fprintf(f, "\n");
for (; i < 8; i++)
cpu_fprintf(f, "%%g%c: 0x%08x\t", i + '0', env->gregs[i]);
cpu_fprintf(f, "\nCurrent Register Window:\n");
for (x = 0; x < 3; x++) {
for (i = 0; i < 4; i++)
cpu_fprintf(f, "%%%c%d: 0x%08x\t",
(x == 0 ? 'o' : (x == 1 ? 'l' : 'i')), i,
env->regwptr[i + x * 8]);
cpu_fprintf(f, "\n");
for (; i < 8; i++)
cpu_fprintf(f, "%%%c%d: 0x%08x\t",
(x == 0 ? 'o' : x == 1 ? 'l' : 'i'), i,
env->regwptr[i + x * 8]);
cpu_fprintf(f, "\n");
}
cpu_fprintf(f, "\nFloating Point Registers:\n");
for (i = 0; i < 32; i++) {
if ((i & 3) == 0)
cpu_fprintf(f, "%%f%02d:", i);
cpu_fprintf(f, " %016lf", env->fpr[i]);
if ((i & 3) == 3)
cpu_fprintf(f, "\n");
}
cpu_fprintf(f, "psr: 0x%08x -> %c%c%c%c %c%c%c wim: 0x%08x\n", GET_PSR(env),
GET_FLAG(PSR_ZERO, 'Z'), GET_FLAG(PSR_OVF, 'V'),
GET_FLAG(PSR_NEG, 'N'), GET_FLAG(PSR_CARRY, 'C'),
env->psrs?'S':'-', env->psrps?'P':'-',
env->psret?'E':'-', env->wim);
cpu_fprintf(f, "fsr: 0x%08x\n", env->fsr);
}
target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
{
return addr;
}
void helper_flush(target_ulong addr)
{
addr &= ~7;
tb_invalidate_page_range(addr, addr + 8);
}
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