armv5te support (Paul Brook)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1258 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-01-31 20:45:13 +00:00
parent dfe86665b8
commit 99c475abf1
9 changed files with 909 additions and 32 deletions

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@ -13,6 +13,8 @@ version 0.6.2:
- initial APIC support
- MMX/SSE/SSE2/PNI support
- PC parallel port support (Mark Jonckheere)
- initial SPARC64 support (Blue Swirl)
- armv5te user mode support (Paul Brook)
version 0.6.1:

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@ -160,7 +160,8 @@ int cpu_exec(CPUState *env1)
env->CF = (psr >> 29) & 1;
env->NZF = (psr & 0xc0000000) ^ 0x40000000;
env->VF = (psr << 3) & 0x80000000;
env->cpsr = psr & ~0xf0000000;
env->QF = (psr >> 27) & 1;
env->cpsr = psr & ~CACHED_CPSR_BITS;
}
#elif defined(TARGET_SPARC)
#elif defined(TARGET_PPC)
@ -303,7 +304,7 @@ int cpu_exec(CPUState *env1)
#elif defined(TARGET_ARM)
env->cpsr = compute_cpsr();
cpu_dump_state(env, logfile, fprintf, 0);
env->cpsr &= ~0xf0000000;
env->cpsr &= ~CACHED_CPSR_BITS;
#elif defined(TARGET_SPARC)
cpu_dump_state (env, logfile, fprintf, 0);
#elif defined(TARGET_PPC)
@ -322,7 +323,7 @@ int cpu_exec(CPUState *env1)
cs_base = env->segs[R_CS].base;
pc = cs_base + env->eip;
#elif defined(TARGET_ARM)
flags = 0;
flags = env->thumb;
cs_base = 0;
pc = env->regs[15];
#elif defined(TARGET_SPARC)

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@ -30,7 +30,7 @@ struct target_pt_regs {
#define ARM_NR_cacheflush (ARM_SYSCALL_BASE + 0xf0000 + 2)
#if defined(TARGET_WORDS_BIGENDIAN)
#define UNAME_MACHINE "armv4b"
#define UNAME_MACHINE "armv5teb"
#else
#define UNAME_MACHINE "armv4l"
#define UNAME_MACHINE "armv5tel"
#endif

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@ -2944,11 +2944,35 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
#endif
#ifdef TARGET_NR_getgroups32
case TARGET_NR_getgroups32:
goto unimplemented;
{
int gidsetsize = arg1;
uint32_t *target_grouplist = (void *)arg2;
gid_t *grouplist;
int i;
grouplist = alloca(gidsetsize * sizeof(gid_t));
ret = get_errno(getgroups(gidsetsize, grouplist));
if (!is_error(ret)) {
for(i = 0;i < gidsetsize; i++)
put_user(grouplist[i], &target_grouplist[i]);
}
}
break;
#endif
#ifdef TARGET_NR_setgroups32
case TARGET_NR_setgroups32:
goto unimplemented;
{
int gidsetsize = arg1;
uint32_t *target_grouplist = (void *)arg2;
gid_t *grouplist;
int i;
grouplist = alloca(gidsetsize * sizeof(gid_t));
for(i = 0;i < gidsetsize; i++)
get_user(grouplist[i], &target_grouplist[i]);
ret = get_errno(setgroups(gidsetsize, grouplist));
}
break;
#endif
#ifdef TARGET_NR_fchown32
case TARGET_NR_fchown32:

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@ -35,6 +35,9 @@ typedef struct CPUARMState {
uint32_t CF; /* 0 or 1 */
uint32_t VF; /* V is the bit 31. All other bits are undefined */
uint32_t NZF; /* N is bit 31. Z is computed from NZF */
uint32_t QF; /* 0 or 1 */
int thumb; /* 0 = arm mode, 1 = thumb mode */
/* exception/interrupt handling */
jmp_buf jmp_env;

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@ -31,12 +31,14 @@ void cpu_lock(void);
void cpu_unlock(void);
void cpu_loop_exit(void);
/* Implemented CPSR bits. */
#define CACHED_CPSR_BITS 0xf8000000
static inline int compute_cpsr(void)
{
int ZF;
ZF = (env->NZF == 0);
return env->cpsr | (env->NZF & 0x80000000) | (ZF << 30) |
(env->CF << 29) | ((env->VF & 0x80000000) >> 3);
(env->CF << 29) | ((env->VF & 0x80000000) >> 3) | (env->QF << 27);
}
static inline void env_to_regs(void)

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@ -81,8 +81,15 @@
#define REGNAME r15
#define REG (env->regs[15])
#define SET_REG(x) REG = x & ~(uint32_t)1
#include "op_template.h"
void OPPROTO op_bx_T0(void)
{
env->regs[15] = T0 & ~(uint32_t)1;
env->thumb = (T0 & 1) != 0;
}
void OPPROTO op_movl_T0_0(void)
{
T0 = 0;
@ -382,6 +389,14 @@ void OPPROTO op_imull_T0_T1(void)
T0 = res;
}
/* 48 bit signed mul, top 32 bits */
void OPPROTO op_imulw_T0_T1(void)
{
uint64_t res;
res = (int64_t)((int32_t)T0) * (int64_t)((int32_t)T1);
T0 = res >> 16;
}
void OPPROTO op_addq_T0_T1(void)
{
uint64_t res;
@ -391,6 +406,15 @@ void OPPROTO op_addq_T0_T1(void)
T0 = res;
}
void OPPROTO op_addq_lo_T0_T1(void)
{
uint64_t res;
res = ((uint64_t)T1 << 32) | T0;
res += (uint64_t)(env->regs[PARAM1]);
T1 = res >> 32;
T0 = res;
}
void OPPROTO op_logicq_cc(void)
{
env->NZF = (T1 & 0x80000000) | ((T0 | T1) != 0);
@ -694,6 +718,126 @@ void OPPROTO op_rorl_T1_T0_cc(void)
FORCE_RET();
}
/* misc */
void OPPROTO op_clz_T0(void)
{
int count;
for (count = 32; T0 > 0; count--)
T0 = T0 >> 1;
T0 = count;
FORCE_RET();
}
void OPPROTO op_sarl_T0_im(void)
{
T0 = (int32_t)T0 >> PARAM1;
}
/* 16->32 Sign extend */
void OPPROTO op_sxl_T0(void)
{
T0 = (int16_t)T0;
}
void OPPROTO op_sxl_T1(void)
{
T1 = (int16_t)T1;
}
#define SIGNBIT (uint32_t)0x80000000
/* saturating arithmetic */
void OPPROTO op_addl_T0_T1_setq(void)
{
uint32_t res;
res = T0 + T1;
if (((res ^ T0) & SIGNBIT) && !((T0 ^ T1) & SIGNBIT))
env->QF = 1;
T0 = res;
FORCE_RET();
}
void OPPROTO op_addl_T0_T1_saturate(void)
{
uint32_t res;
res = T0 + T1;
if (((res ^ T0) & SIGNBIT) && !((T0 ^ T1) & SIGNBIT)) {
env->QF = 1;
if (T0 & SIGNBIT)
T0 = 0x80000000;
else
T0 = 0x7fffffff;
}
else
T0 = res;
FORCE_RET();
}
void OPPROTO op_subl_T0_T1_saturate(void)
{
uint32_t res;
res = T0 - T1;
if (((res ^ T0) & SIGNBIT) && ((T0 ^ T1) & SIGNBIT)) {
env->QF = 1;
if (T0 & SIGNBIT)
T0 = 0x8000000;
else
T0 = 0x7fffffff;
}
else
T0 = res;
FORCE_RET();
}
/* thumb shift by immediate */
void OPPROTO op_shll_T0_im_thumb(void)
{
int shift;
shift = PARAM1;
if (shift != 0) {
env->CF = (T1 >> (32 - shift)) & 1;
T0 = T0 << shift;
}
env->NZF = T0;
FORCE_RET();
}
void OPPROTO op_shrl_T0_im_thumb(void)
{
int shift;
shift = PARAM1;
if (shift == 0) {
env->CF = 0;
T0 = 0;
} else {
env->CF = (T0 >> (shift - 1)) & 1;
T0 = T0 >> shift;
}
FORCE_RET();
}
void OPPROTO op_sarl_T0_im_thumb(void)
{
int shift;
shift = PARAM1;
if (shift == 0) {
T0 = ((int32_t)T0) >> 31;
env->CF = T0 & 1;
} else {
env->CF = (T0 >> (shift - 1)) & 1;
T0 = ((int32_t)T0) >> shift;
}
env->NZF = T0;
FORCE_RET();
}
/* exceptions */
void OPPROTO op_swi(void)

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@ -19,6 +19,10 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef SET_REG
#define SET_REG(x) REG = x
#endif
void OPPROTO glue(op_movl_T0_, REGNAME)(void)
{
T0 = REG;
@ -36,13 +40,14 @@ void OPPROTO glue(op_movl_T2_, REGNAME)(void)
void OPPROTO glue(glue(op_movl_, REGNAME), _T0)(void)
{
REG = T0;
SET_REG (T0);
}
void OPPROTO glue(glue(op_movl_, REGNAME), _T1)(void)
{
REG = T1;
SET_REG (T1);
}
#undef REG
#undef REGNAME
#undef SET_REG

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@ -245,6 +245,18 @@ static GenOpFunc1 *gen_op_movl_TN_im[3] = {
gen_op_movl_T2_im,
};
static GenOpFunc1 *gen_shift_T0_im_thumb[3] = {
gen_op_shll_T0_im_thumb,
gen_op_shrl_T0_im_thumb,
gen_op_sarl_T0_im_thumb,
};
static inline void gen_bx(DisasContext *s)
{
s->is_jmp = DISAS_UPDATE;
gen_op_bx_T0();
}
static inline void gen_movl_TN_reg(DisasContext *s, int reg, int t)
{
int val;
@ -350,17 +362,166 @@ static void disas_arm_insn(DisasContext *s)
s->pc += 4;
cond = insn >> 28;
if (cond == 0xf)
if (cond == 0xf){
if ((insn & 0x0d70f000) == 0x0550f000)
return; /* PLD */
else if ((insn & 0x0e000000) == 0x0a000000) {
/* branch link and change to thumb (blx <offset>) */
int32_t offset;
val = (uint32_t)s->pc;
gen_op_movl_T0_im(val);
gen_movl_reg_T0(s, 14);
/* Sign-extend the 24-bit offset */
offset = (((int32_t)insn) << 8) >> 8;
/* offset * 4 + bit24 * 2 + (thumb bit) */
val += (offset << 2) | ((insn >> 23) & 2) | 1;
/* pipeline offset */
val += 4;
gen_op_movl_T0_im(val);
gen_bx(s);
return;
}
goto illegal_op;
}
if (cond != 0xe) {
/* if not always execute, we generate a conditional jump to
next instruction */
gen_test_cc[cond ^ 1]((long)s->tb, (long)s->pc);
s->is_jmp = DISAS_JUMP_NEXT;
}
if (((insn & 0x0e000000) == 0 &&
(insn & 0x00000090) != 0x90) ||
((insn & 0x0e000000) == (1 << 25))) {
if ((insn & 0x0f900000) == 0x03000000) {
if ((insn & 0x0ff0f000) != 0x0360f000)
goto illegal_op;
/* CPSR = immediate */
val = insn & 0xff;
shift = ((insn >> 8) & 0xf) * 2;
if (shift)
val = (val >> shift) | (val << (32 - shift));
gen_op_movl_T0_im(val);
if (insn & (1 << 19))
gen_op_movl_psr_T0();
} else if ((insn & 0x0f900000) == 0x01000000
&& (insn & 0x00000090) != 0x00000090) {
/* miscellaneous instructions */
op1 = (insn >> 21) & 3;
sh = (insn >> 4) & 0xf;
rm = insn & 0xf;
switch (sh) {
case 0x0: /* move program status register */
if (op1 & 2) {
/* SPSR not accessible in user mode */
goto illegal_op;
}
if (op1 & 1) {
/* CPSR = reg */
gen_movl_T0_reg(s, rm);
if (insn & (1 << 19))
gen_op_movl_psr_T0();
} else {
/* reg = CPSR */
rd = (insn >> 12) & 0xf;
gen_op_movl_T0_psr();
gen_movl_reg_T0(s, rd);
}
case 0x1:
if (op1 == 1) {
/* branch/exchange thumb (bx). */
gen_movl_T0_reg(s, rm);
gen_bx(s);
} else if (op1 == 3) {
/* clz */
rd = (insn >> 12) & 0xf;
gen_movl_T0_reg(s, rm);
gen_op_clz_T0();
gen_movl_reg_T0(s, rd);
} else {
goto illegal_op;
}
break;
case 0x3:
if (op1 != 1)
goto illegal_op;
/* branch link/exchange thumb (blx) */
val = (uint32_t)s->pc;
gen_op_movl_T0_im(val);
gen_movl_reg_T0(s, 14);
gen_movl_T0_reg(s, rm);
gen_bx(s);
break;
case 0x5: /* saturating add/subtract */
rd = (insn >> 12) & 0xf;
rn = (insn >> 16) & 0xf;
gen_movl_T0_reg(s, rn);
if (op1 & 2) {
gen_movl_T1_reg(s, rn);
if (op1 & 1)
gen_op_subl_T0_T1_saturate();
else
gen_op_addl_T0_T1_saturate();
}
gen_movl_T1_reg(s, rm);
if (op1 & 1)
gen_op_subl_T0_T1_saturate();
else
gen_op_addl_T0_T1_saturate();
gen_movl_reg_T0(s, rn);
break;
case 0x8: /* signed multiply */
case 0xa:
case 0xc:
case 0xe:
rs = (insn >> 8) & 0xf;
rn = (insn >> 12) & 0xf;
rd = (insn >> 16) & 0xf;
if (op1 == 1) {
/* (32 * 16) >> 16 */
gen_movl_T0_reg(s, rm);
gen_movl_T1_reg(s, rs);
if (sh & 4)
gen_op_sarl_T1_im(16);
else
gen_op_sxl_T1();
gen_op_imulw_T0_T1();
if ((sh & 2) == 0) {
gen_movl_T1_reg(s, rn);
gen_op_addl_T0_T1_setq();
}
gen_movl_reg_T0(s, rd);
} else {
/* 16 * 16 */
gen_movl_T0_reg(s, rm);
if (sh & 2)
gen_op_sarl_T0_im(16);
else
gen_op_sxl_T0();
gen_movl_T1_reg(s, rs);
if (sh & 4)
gen_op_sarl_T1_im(16);
else
gen_op_sxl_T1();
if (op1 == 2) {
gen_op_imull_T0_T1();
gen_op_addq_T0_T1(rn, rd);
gen_movl_reg_T0(s, rn);
gen_movl_reg_T1(s, rd);
} else {
gen_op_mul_T0_T1();
if (op1 == 0) {
gen_movl_T1_reg(s, rn);
gen_op_addl_T0_T1_setq();
}
gen_movl_reg_T0(s, rd);
}
}
break;
default:
goto illegal_op;
}
} else if (((insn & 0x0e000000) == 0 &&
(insn & 0x00000090) != 0x90) ||
((insn & 0x0e000000) == (1 << 25))) {
int set_cc, logic_cc, shiftop;
op1 = (insn >> 21) & 0xf;
@ -519,6 +680,7 @@ static void disas_arm_insn(DisasContext *s)
switch(op1) {
case 0x0:
case 0x1:
/* multiplies, extra load/stores */
sh = (insn >> 5) & 3;
if (sh == 0) {
if (op1 == 0x0) {
@ -526,7 +688,7 @@ static void disas_arm_insn(DisasContext *s)
rn = (insn >> 12) & 0xf;
rs = (insn >> 8) & 0xf;
rm = (insn) & 0xf;
if (!(insn & (1 << 23))) {
if (((insn >> 22) & 3) == 0) {
/* 32 bit mul */
gen_movl_T0_reg(s, rs);
gen_movl_T1_reg(s, rm);
@ -546,30 +708,39 @@ static void disas_arm_insn(DisasContext *s)
gen_op_imull_T0_T1();
else
gen_op_mull_T0_T1();
if (insn & (1 << 21))
if (insn & (1 << 21)) /* mult accumulate */
gen_op_addq_T0_T1(rn, rd);
if (!(insn & (1 << 23))) { /* double accumulate */
gen_op_addq_lo_T0_T1(rn);
gen_op_addq_lo_T0_T1(rd);
}
if (insn & (1 << 20))
gen_op_logicq_cc();
gen_movl_reg_T0(s, rn);
gen_movl_reg_T1(s, rd);
}
} else {
/* SWP instruction */
rn = (insn >> 16) & 0xf;
rd = (insn >> 12) & 0xf;
rm = (insn) & 0xf;
gen_movl_T0_reg(s, rm);
gen_movl_T1_reg(s, rn);
if (insn & (1 << 22)) {
gen_op_swpb_T0_T1();
if (insn & (1 << 23)) {
/* load/store exclusive */
goto illegal_op;
} else {
gen_op_swpl_T0_T1();
/* SWP instruction */
rm = (insn) & 0xf;
gen_movl_T0_reg(s, rm);
gen_movl_T1_reg(s, rn);
if (insn & (1 << 22)) {
gen_op_swpb_T0_T1();
} else {
gen_op_swpl_T0_T1();
}
gen_movl_reg_T0(s, rd);
}
gen_movl_reg_T0(s, rd);
}
} else {
/* load/store half word */
/* Misc load/store */
rn = (insn >> 16) & 0xf;
rd = (insn >> 12) & 0xf;
gen_movl_T1_reg(s, rn);
@ -590,6 +761,27 @@ static void disas_arm_insn(DisasContext *s)
break;
}
gen_movl_reg_T0(s, rd);
} else if (sh & 2) {
/* doubleword */
if (sh & 1) {
/* store */
gen_movl_T0_reg(s, rd);
gen_op_stl_T0_T1();
gen_op_addl_T1_im(4);
gen_movl_T0_reg(s, rd + 1);
gen_op_stl_T0_T1();
if ((insn & (1 << 24)) || (insn & (1 << 20)))
gen_op_addl_T1_im(-4);
} else {
/* load */
gen_op_ldl_T0_T1();
gen_movl_reg_T0(s, rd);
gen_op_addl_T1_im(4);
gen_op_ldl_T0_T1();
gen_movl_reg_T0(s, rd + 1);
if ((insn & (1 << 24)) || (insn & (1 << 20)))
gen_op_addl_T1_im(-4);
}
} else {
/* store */
gen_movl_T0_reg(s, rd);
@ -619,7 +811,10 @@ static void disas_arm_insn(DisasContext *s)
gen_op_ldub_T0_T1();
else
gen_op_ldl_T0_T1();
gen_movl_reg_T0(s, rd);
if (rd == 15)
gen_bx(s);
else
gen_movl_reg_T0(s, rd);
} else {
/* store */
gen_movl_T0_reg(s, rd);
@ -676,7 +871,10 @@ static void disas_arm_insn(DisasContext *s)
if (insn & (1 << 20)) {
/* load */
gen_op_ldl_T0_T1();
gen_movl_reg_T0(s, i);
if (i == 15)
gen_bx(s);
else
gen_movl_reg_T0(s, i);
} else {
/* store */
if (i == 15) {
@ -720,15 +918,15 @@ static void disas_arm_insn(DisasContext *s)
case 0xa:
case 0xb:
{
int offset;
int32_t offset;
/* branch (and link) */
val = (int)s->pc;
val = (int32_t)s->pc;
if (insn & (1 << 24)) {
gen_op_movl_T0_im(val);
gen_op_movl_reg_TN[0][14]();
}
offset = (((int)insn << 8) >> 8);
offset = (((int32_t)insn << 8) >> 8);
val += (offset << 2) + 4;
gen_op_jmp((long)s->tb, val);
s->is_jmp = DISAS_TB_JUMP;
@ -752,6 +950,500 @@ static void disas_arm_insn(DisasContext *s)
}
}
static void disas_thumb_insn(DisasContext *s)
{
uint32_t val, insn, op, rm, rn, rd, shift, cond;
int32_t offset;
int i;
insn = lduw(s->pc);
s->pc += 2;
switch (insn >> 12) {
case 0: case 1:
rd = insn & 7;
op = (insn >> 11) & 3;
if (op == 3) {
/* add/subtract */
rn = (insn >> 3) & 7;
gen_movl_T0_reg(s, rn);
if (insn & (1 << 10)) {
/* immediate */
gen_op_movl_T1_im((insn >> 6) & 7);
} else {
/* reg */
rm = (insn >> 6) & 7;
gen_movl_T1_reg(s, rm);
}
if (insn & (1 << 9))
gen_op_addl_T0_T1_cc();
else
gen_op_addl_T0_T1_cc();
gen_movl_reg_T0(s, rd);
} else {
/* shift immediate */
rm = (insn >> 3) & 7;
shift = (insn >> 6) & 0x1f;
gen_movl_T0_reg(s, rm);
gen_shift_T0_im_thumb[op](shift);
gen_movl_reg_T0(s, rd);
}
break;
case 2: case 3:
/* arithmetic large immediate */
op = (insn >> 11) & 3;
rd = (insn >> 8) & 0x7;
if (op == 0) {
gen_op_movl_T0_im(insn & 0xff);
} else {
gen_movl_T0_reg(s, rd);
gen_op_movl_T1_im(insn & 0xff);
}
switch (op) {
case 0: /* mov */
gen_op_logic_T0_cc();
break;
case 1: /* cmp */
gen_op_subl_T0_T1_cc();
break;
case 2: /* add */
gen_op_addl_T0_T1_cc();
break;
case 3: /* sub */
gen_op_subl_T0_T1_cc();
break;
}
if (op != 1)
gen_movl_reg_T0(s, rd);
break;
case 4:
if (insn & (1 << 11)) {
rd = (insn >> 8) & 7;
/* load pc-relative */
val = (insn & 0xff) * 4;
gen_op_movl_T1_im(val);
gen_movl_T2_reg(s, 15);
gen_op_addl_T1_T2();
gen_op_ldl_T0_T1();
gen_movl_reg_T0(s, rd);
break;
}
if (insn & (1 << 10)) {
/* data processing extended or blx */
rd = (insn & 7) | ((insn >> 4) & 8);
rm = (insn >> 3) & 0xf;
op = (insn >> 8) & 3;
switch (op) {
case 0: /* add */
gen_movl_T0_reg(s, rd);
gen_movl_T1_reg(s, rm);
gen_op_addl_T0_T1();
gen_movl_reg_T0(s, rd);
break;
case 1: /* cmp */
gen_movl_T0_reg(s, rd);
gen_movl_T1_reg(s, rm);
gen_op_subl_T0_T1_cc();
break;
case 2: /* mov/cpy */
gen_movl_T0_reg(s, rm);
gen_movl_reg_T0(s, rd);
break;
case 3:/* branch [and link] exchange thumb register */
if (insn & (1 << 7)) {
val = (uint32_t)s->pc | 1;
gen_op_movl_T1_im(val);
gen_movl_reg_T1(s, 14);
}
gen_movl_T0_reg(s, rm);
gen_bx(s);
break;
}
break;
}
/* data processing register */
rd = insn & 7;
rm = (insn >> 3) & 7;
op = (insn >> 6) & 0xf;
if (op == 2 || op == 3 || op == 4 || op == 7) {
/* the shift/rotate ops want the operands backwards */
val = rm;
rm = rd;
rd = val;
val = 1;
} else {
val = 0;
}
if (op == 9) /* neg */
gen_op_movl_T0_im(0);
else if (op != 0xf) /* mvn doesn't read its first operand */
gen_movl_T0_reg(s, rd);
gen_movl_T1_reg(s, rm);
switch (insn >> 6) {
case 0x0: /* and */
gen_op_andl_T0_T1();
gen_op_logic_T0_cc();
break;
case 0x1: /* eor */
gen_op_xorl_T0_T1();
gen_op_logic_T0_cc();
break;
case 0x2: /* lsl */
gen_op_shll_T1_T0_cc();
break;
case 0x3: /* lsr */
gen_op_shrl_T1_T0_cc();
break;
case 0x4: /* asr */
gen_op_sarl_T1_T0_cc();
break;
case 0x5: /* adc */
gen_op_adcl_T0_T1_cc();
break;
case 0x6: /* sbc */
gen_op_sbcl_T0_T1_cc();
break;
case 0x7: /* ror */
gen_op_rorl_T1_T0_cc();
break;
case 0x8: /* tst */
gen_op_andl_T0_T1();
gen_op_logic_T0_cc();
rd = 16;
case 0x9: /* neg */
gen_op_rsbl_T0_T1_cc();
break;
case 0xa: /* cmp */
gen_op_subl_T0_T1_cc();
rd = 16;
break;
case 0xb: /* cmn */
gen_op_addl_T0_T1_cc();
rd = 16;
break;
case 0xc: /* orr */
gen_op_orl_T0_T1();
gen_op_logic_T0_cc();
break;
case 0xd: /* mul */
gen_op_mull_T0_T1();
gen_op_logic_T0_cc();
break;
case 0xe: /* bic */
gen_op_bicl_T0_T1();
gen_op_logic_T0_cc();
break;
case 0xf: /* mvn */
gen_op_notl_T1();
gen_op_logic_T1_cc();
val = 1;
break;
}
if (rd != 16) {
if (val)
gen_movl_reg_T1(s, rd);
else
gen_movl_reg_T0(s, rd);
}
break;
case 5:
/* load/store register offset. */
rd = insn & 7;
rn = (insn >> 3) & 7;
rm = (insn >> 6) & 7;
op = (insn >> 9) & 7;
gen_movl_T1_reg(s, rn);
gen_movl_T2_reg(s, rm);
gen_op_addl_T1_T2();
if (op < 3) /* store */
gen_movl_T0_reg(s, rd);
switch (op) {
case 0: /* str */
gen_op_stl_T0_T1();
break;
case 1: /* strh */
gen_op_stw_T0_T1();
break;
case 2: /* strb */
gen_op_stb_T0_T1();
break;
case 3: /* ldrsb */
gen_op_ldsb_T0_T1();
break;
case 4: /* ldr */
gen_op_ldl_T0_T1();
break;
case 5: /* ldrh */
gen_op_ldsw_T0_T1();
break;
case 6: /* ldrb */
gen_op_ldub_T0_T1();
break;
case 7: /* ldrsh */
gen_op_ldsw_T0_T1();
break;
}
if (op >= 3) /* load */
gen_movl_reg_T0(s, rd);
break;
case 6:
/* load/store word immediate offset */
rd = insn & 7;
rn = (insn >> 3) & 7;
gen_movl_T1_reg(s, rn);
val = (insn >> 4) & 0x7c;
gen_op_movl_T2_im(val);
gen_op_addl_T1_T2();
if (insn & (1 << 11)) {
/* load */
gen_op_ldl_T0_T1();
gen_movl_reg_T0(s, rd);
} else {
/* store */
gen_movl_T0_reg(s, rd);
gen_op_stl_T0_T1();
}
break;
case 7:
/* load/store byte immediate offset */
rd = insn & 7;
rn = (insn >> 3) & 7;
gen_movl_T1_reg(s, rn);
val = (insn >> 6) & 0x1f;
gen_op_movl_T2_im(val);
gen_op_addl_T1_T2();
if (insn & (1 << 11)) {
/* load */
gen_op_ldub_T0_T1();
gen_movl_reg_T0(s, rd);
} else {
/* store */
gen_movl_T0_reg(s, rd);
gen_op_stb_T0_T1();
}
break;
case 8:
/* load/store halfword immediate offset */
rd = insn & 7;
rn = (insn >> 3) & 7;
gen_movl_T1_reg(s, rn);
val = (insn >> 5) & 0x3e;
gen_op_movl_T2_im(val);
gen_op_addl_T1_T2();
if (insn & (1 << 11)) {
/* load */
gen_op_lduw_T0_T1();
gen_movl_reg_T0(s, rd);
} else {
/* store */
gen_movl_T0_reg(s, rd);
gen_op_stw_T0_T1();
}
break;
case 9:
/* load/store from stack */
rd = (insn >> 8) & 7;
gen_movl_T1_reg(s, 13);
val = (insn & 0xff) * 4;
gen_op_movl_T2_im(val);
gen_op_addl_T1_T2();
if (insn & (1 << 11)) {
/* load */
gen_op_ldl_T0_T1();
gen_movl_reg_T0(s, rd);
} else {
/* store */
gen_movl_T0_reg(s, rd);
gen_op_stl_T0_T1();
}
break;
case 10:
/* add to high reg */
rd = (insn >> 8) & 7;
if (insn & (1 << 11))
rm = 13; /* sp */
else
rm = 15; /* pc */
gen_movl_T0_reg(s, rm);
val = (insn & 0xff) * 4;
gen_op_movl_T1_im(val);
gen_op_addl_T0_T1();
gen_movl_reg_T0(s, rd);
break;
case 11:
/* misc */
op = (insn >> 8) & 0xf;
switch (op) {
case 0:
/* adjust stack pointer */
gen_movl_T1_reg(s, 13);
val = (insn & 0x7f) * 4;
if (insn & (1 << 7))
val = -(int32_t)val;
gen_op_movl_T2_im(val);
gen_op_addl_T1_T2();
gen_movl_reg_T1(s, 13);
break;
case 4: case 5: case 0xc: case 0xd:
/* push/pop */
gen_movl_T1_reg(s, 13);
if (insn & (1 << 11))
val = 4;
else
val = -4;
gen_op_movl_T2_im(val);
for (i = 0; i < 8; i++) {
if (insn & (1 << i)) {
if (insn & (1 << 11)) {
/* pop */
gen_op_ldl_T0_T1();
gen_movl_reg_T0(s, i);
} else {
/* push */
gen_movl_T0_reg(s, i);
gen_op_stl_T0_T1();
}
/* move to the next address */
gen_op_addl_T1_T2();
}
}
if (insn & (1 << 8)) {
if (insn & (1 << 11)) {
/* pop pc */
gen_op_ldl_T0_T1();
/* don't set the pc until the rest of the instruction
has completed */
} else {
/* push lr */
gen_movl_T0_reg(s, 14);
gen_op_stl_T0_T1();
}
gen_op_addl_T1_T2();
}
/* write back the new stack pointer */
gen_movl_reg_T1(s, 13);
/* set the new PC value */
if ((insn & 0x0900) == 0x0900)
gen_bx(s);
break;
default:
goto undef;
}
break;
case 12:
/* load/store multiple */
rn = (insn >> 8) & 0x7;
gen_movl_T1_reg(s, rn);
gen_op_movl_T2_im(4);
val = 0;
for (i = 0; i < 8; i++) {
if (insn & (1 << i)) {
/* advance to the next address */
if (val)
gen_op_addl_T1_T2();
else
val = 1;
if (insn & (1 << 11)) {
/* load */
gen_op_ldl_T0_T1();
gen_movl_reg_T0(s, i);
} else {
/* store */
gen_movl_T0_reg(s, i);
gen_op_stl_T0_T1();
}
}
}
break;
case 13:
/* conditional branch or swi */
cond = (insn >> 8) & 0xf;
if (cond == 0xe)
goto undef;
if (cond == 0xf) {
/* swi */
gen_op_movl_T0_im((long)s->pc | 1);
/* Don't set r15. */
gen_op_movl_reg_TN[0][15]();
gen_op_swi();
s->is_jmp = DISAS_JUMP;
break;
}
/* generate a conditional jump to next instruction */
gen_test_cc[cond ^ 1]((long)s->tb, (long)s->pc);
s->is_jmp = DISAS_JUMP_NEXT;
gen_movl_T1_reg(s, 15);
/* jump to the offset */
val = (uint32_t)s->pc;
offset = ((int32_t)insn << 24) >> 24;
val += (offset << 1) + 2;
gen_op_jmp((long)s->tb, val);
s->is_jmp = DISAS_TB_JUMP;
break;
case 14:
/* unconditional branch */
if (insn & (1 << 11))
goto undef; /* Second half of a blx */
val = (uint32_t)s->pc;
offset = ((int32_t)insn << 21) >> 21;
val += (offset << 1) + 2;
gen_op_jmp((long)s->tb, val);
s->is_jmp = DISAS_TB_JUMP;
break;
case 15:
/* branch and link [and switch to arm] */
offset = ((int32_t)insn << 21) >> 10;
insn = lduw(s->pc);
offset |= insn & 0x7ff;
val = (uint32_t)s->pc + 2;
gen_op_movl_T1_im(val | 1);
gen_movl_reg_T1(s, 14);
val += offset;
if (insn & (1 << 11)) {
/* bl */
gen_op_jmp((long)s->tb, val);
s->is_jmp = DISAS_TB_JUMP;
} else {
/* blx */
gen_op_movl_T0_im(val);
gen_bx(s);
}
}
return;
undef:
gen_op_movl_T0_im((long)s->pc - 4);
gen_op_movl_reg_TN[0][15]();
gen_op_undef_insn();
s->is_jmp = DISAS_JUMP;
}
/* generate intermediate code in gen_opc_buf and gen_opparam_buf for
basic block 'tb'. If search_pc is TRUE, also generate PC
information for each intermediate instruction. */
@ -787,7 +1479,10 @@ static inline int gen_intermediate_code_internal(CPUState *env,
gen_opc_pc[lj] = dc->pc;
gen_opc_instr_start[lj] = 1;
}
disas_arm_insn(dc);
if (env->thumb)
disas_thumb_insn(dc);
else
disas_arm_insn(dc);
} while (!dc->is_jmp && gen_opc_ptr < gen_opc_end &&
(dc->pc - pc_start) < (TARGET_PAGE_SIZE - 32));
switch(dc->is_jmp) {
@ -797,6 +1492,7 @@ static inline int gen_intermediate_code_internal(CPUState *env,
break;
default:
case DISAS_JUMP:
case DISAS_UPDATE:
/* indicate that the hash table must be used to find the next TB */
gen_op_movl_T0_0();
gen_op_exit_tb();