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qemu/target/ppc/translate/fp-impl.inc.c
Thomas Huth fcf5ef2ab5 Move target-* CPU file into a target/ folder 
We've currently got 18 architectures in QEMU, and thus 18 target-xxx
folders in the root folder of the QEMU source tree. More architectures
(e.g. RISC-V, AVR) are likely to be included soon, too, so the main
folder of the QEMU sources slowly gets quite overcrowded with the
target-xxx folders.
To disburden the main folder a little bit, let's move the target-xxx
folders into a dedicated target/ folder, so that target-xxx/ simply
becomes target/xxx/ instead.

Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part]
Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part]
Acked-by: Michael Walle <michael@walle.cc> [lm32 part]
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part]
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part]
Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part]
Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part]
Acked-by: Richard Henderson <rth@twiddle.net> [alpha part]
Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part]
Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part]
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part]
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2016-12-20 21:52:12 +01:00

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/*
* translate-fp.c
*
* Standard FPU translation
*/
static inline void gen_reset_fpstatus(void)
{
gen_helper_reset_fpstatus(cpu_env);
}
static inline void gen_compute_fprf(TCGv_i64 arg)
{
gen_helper_compute_fprf(cpu_env, arg);
gen_helper_float_check_status(cpu_env);
}
#if defined(TARGET_PPC64)
static void gen_set_cr1_from_fpscr(DisasContext *ctx)
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(tmp, cpu_fpscr);
tcg_gen_shri_i32(cpu_crf[1], tmp, 28);
tcg_temp_free_i32(tmp);
}
#else
static void gen_set_cr1_from_fpscr(DisasContext *ctx)
{
tcg_gen_shri_tl(cpu_crf[1], cpu_fpscr, 28);
}
#endif
/*** Floating-Point arithmetic ***/
#define _GEN_FLOAT_ACB(name, op, op1, op2, isfloat, set_fprf, type) \
static void gen_f##name(DisasContext *ctx) \
{ \
if (unlikely(!ctx->fpu_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_FPU); \
return; \
} \
gen_reset_fpstatus(); \
gen_helper_f##op(cpu_fpr[rD(ctx->opcode)], cpu_env, \
cpu_fpr[rA(ctx->opcode)], \
cpu_fpr[rC(ctx->opcode)], cpu_fpr[rB(ctx->opcode)]); \
if (isfloat) { \
gen_helper_frsp(cpu_fpr[rD(ctx->opcode)], cpu_env, \
cpu_fpr[rD(ctx->opcode)]); \
} \
if (set_fprf) { \
gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]); \
} \
if (unlikely(Rc(ctx->opcode) != 0)) { \
gen_set_cr1_from_fpscr(ctx); \
} \
}
#define GEN_FLOAT_ACB(name, op2, set_fprf, type) \
_GEN_FLOAT_ACB(name, name, 0x3F, op2, 0, set_fprf, type); \
_GEN_FLOAT_ACB(name##s, name, 0x3B, op2, 1, set_fprf, type);
#define _GEN_FLOAT_AB(name, op, op1, op2, inval, isfloat, set_fprf, type) \
static void gen_f##name(DisasContext *ctx) \
{ \
if (unlikely(!ctx->fpu_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_FPU); \
return; \
} \
gen_reset_fpstatus(); \
gen_helper_f##op(cpu_fpr[rD(ctx->opcode)], cpu_env, \
cpu_fpr[rA(ctx->opcode)], \
cpu_fpr[rB(ctx->opcode)]); \
if (isfloat) { \
gen_helper_frsp(cpu_fpr[rD(ctx->opcode)], cpu_env, \
cpu_fpr[rD(ctx->opcode)]); \
} \
if (set_fprf) { \
gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]); \
} \
if (unlikely(Rc(ctx->opcode) != 0)) { \
gen_set_cr1_from_fpscr(ctx); \
} \
}
#define GEN_FLOAT_AB(name, op2, inval, set_fprf, type) \
_GEN_FLOAT_AB(name, name, 0x3F, op2, inval, 0, set_fprf, type); \
_GEN_FLOAT_AB(name##s, name, 0x3B, op2, inval, 1, set_fprf, type);
#define _GEN_FLOAT_AC(name, op, op1, op2, inval, isfloat, set_fprf, type) \
static void gen_f##name(DisasContext *ctx) \
{ \
if (unlikely(!ctx->fpu_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_FPU); \
return; \
} \
gen_reset_fpstatus(); \
gen_helper_f##op(cpu_fpr[rD(ctx->opcode)], cpu_env, \
cpu_fpr[rA(ctx->opcode)], \
cpu_fpr[rC(ctx->opcode)]); \
if (isfloat) { \
gen_helper_frsp(cpu_fpr[rD(ctx->opcode)], cpu_env, \
cpu_fpr[rD(ctx->opcode)]); \
} \
if (set_fprf) { \
gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]); \
} \
if (unlikely(Rc(ctx->opcode) != 0)) { \
gen_set_cr1_from_fpscr(ctx); \
} \
}
#define GEN_FLOAT_AC(name, op2, inval, set_fprf, type) \
_GEN_FLOAT_AC(name, name, 0x3F, op2, inval, 0, set_fprf, type); \
_GEN_FLOAT_AC(name##s, name, 0x3B, op2, inval, 1, set_fprf, type);
#define GEN_FLOAT_B(name, op2, op3, set_fprf, type) \
static void gen_f##name(DisasContext *ctx) \
{ \
if (unlikely(!ctx->fpu_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_FPU); \
return; \
} \
gen_reset_fpstatus(); \
gen_helper_f##name(cpu_fpr[rD(ctx->opcode)], cpu_env, \
cpu_fpr[rB(ctx->opcode)]); \
if (set_fprf) { \
gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]); \
} \
if (unlikely(Rc(ctx->opcode) != 0)) { \
gen_set_cr1_from_fpscr(ctx); \
} \
}
#define GEN_FLOAT_BS(name, op1, op2, set_fprf, type) \
static void gen_f##name(DisasContext *ctx) \
{ \
if (unlikely(!ctx->fpu_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_FPU); \
return; \
} \
gen_reset_fpstatus(); \
gen_helper_f##name(cpu_fpr[rD(ctx->opcode)], cpu_env, \
cpu_fpr[rB(ctx->opcode)]); \
if (set_fprf) { \
gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]); \
} \
if (unlikely(Rc(ctx->opcode) != 0)) { \
gen_set_cr1_from_fpscr(ctx); \
} \
}
/* fadd - fadds */
GEN_FLOAT_AB(add, 0x15, 0x000007C0, 1, PPC_FLOAT);
/* fdiv - fdivs */
GEN_FLOAT_AB(div, 0x12, 0x000007C0, 1, PPC_FLOAT);
/* fmul - fmuls */
GEN_FLOAT_AC(mul, 0x19, 0x0000F800, 1, PPC_FLOAT);
/* fre */
GEN_FLOAT_BS(re, 0x3F, 0x18, 1, PPC_FLOAT_EXT);
/* fres */
GEN_FLOAT_BS(res, 0x3B, 0x18, 1, PPC_FLOAT_FRES);
/* frsqrte */
GEN_FLOAT_BS(rsqrte, 0x3F, 0x1A, 1, PPC_FLOAT_FRSQRTE);
/* frsqrtes */
static void gen_frsqrtes(DisasContext *ctx)
{
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
gen_reset_fpstatus();
gen_helper_frsqrte(cpu_fpr[rD(ctx->opcode)], cpu_env,
cpu_fpr[rB(ctx->opcode)]);
gen_helper_frsp(cpu_fpr[rD(ctx->opcode)], cpu_env,
cpu_fpr[rD(ctx->opcode)]);
gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_cr1_from_fpscr(ctx);
}
}
/* fsel */
_GEN_FLOAT_ACB(sel, sel, 0x3F, 0x17, 0, 0, PPC_FLOAT_FSEL);
/* fsub - fsubs */
GEN_FLOAT_AB(sub, 0x14, 0x000007C0, 1, PPC_FLOAT);
/* Optional: */
/* fsqrt */
static void gen_fsqrt(DisasContext *ctx)
{
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
gen_reset_fpstatus();
gen_helper_fsqrt(cpu_fpr[rD(ctx->opcode)], cpu_env,
cpu_fpr[rB(ctx->opcode)]);
gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_cr1_from_fpscr(ctx);
}
}
static void gen_fsqrts(DisasContext *ctx)
{
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
gen_reset_fpstatus();
gen_helper_fsqrt(cpu_fpr[rD(ctx->opcode)], cpu_env,
cpu_fpr[rB(ctx->opcode)]);
gen_helper_frsp(cpu_fpr[rD(ctx->opcode)], cpu_env,
cpu_fpr[rD(ctx->opcode)]);
gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_cr1_from_fpscr(ctx);
}
}
/*** Floating-Point multiply-and-add ***/
/* fmadd - fmadds */
GEN_FLOAT_ACB(madd, 0x1D, 1, PPC_FLOAT);
/* fmsub - fmsubs */
GEN_FLOAT_ACB(msub, 0x1C, 1, PPC_FLOAT);
/* fnmadd - fnmadds */
GEN_FLOAT_ACB(nmadd, 0x1F, 1, PPC_FLOAT);
/* fnmsub - fnmsubs */
GEN_FLOAT_ACB(nmsub, 0x1E, 1, PPC_FLOAT);
/*** Floating-Point round & convert ***/
/* fctiw */
GEN_FLOAT_B(ctiw, 0x0E, 0x00, 0, PPC_FLOAT);
/* fctiwu */
GEN_FLOAT_B(ctiwu, 0x0E, 0x04, 0, PPC2_FP_CVT_ISA206);
/* fctiwz */
GEN_FLOAT_B(ctiwz, 0x0F, 0x00, 0, PPC_FLOAT);
/* fctiwuz */
GEN_FLOAT_B(ctiwuz, 0x0F, 0x04, 0, PPC2_FP_CVT_ISA206);
/* frsp */
GEN_FLOAT_B(rsp, 0x0C, 0x00, 1, PPC_FLOAT);
/* fcfid */
GEN_FLOAT_B(cfid, 0x0E, 0x1A, 1, PPC2_FP_CVT_S64);
/* fcfids */
GEN_FLOAT_B(cfids, 0x0E, 0x1A, 0, PPC2_FP_CVT_ISA206);
/* fcfidu */
GEN_FLOAT_B(cfidu, 0x0E, 0x1E, 0, PPC2_FP_CVT_ISA206);
/* fcfidus */
GEN_FLOAT_B(cfidus, 0x0E, 0x1E, 0, PPC2_FP_CVT_ISA206);
/* fctid */
GEN_FLOAT_B(ctid, 0x0E, 0x19, 0, PPC2_FP_CVT_S64);
/* fctidu */
GEN_FLOAT_B(ctidu, 0x0E, 0x1D, 0, PPC2_FP_CVT_ISA206);
/* fctidz */
GEN_FLOAT_B(ctidz, 0x0F, 0x19, 0, PPC2_FP_CVT_S64);
/* fctidu */
GEN_FLOAT_B(ctiduz, 0x0F, 0x1D, 0, PPC2_FP_CVT_ISA206);
/* frin */
GEN_FLOAT_B(rin, 0x08, 0x0C, 1, PPC_FLOAT_EXT);
/* friz */
GEN_FLOAT_B(riz, 0x08, 0x0D, 1, PPC_FLOAT_EXT);
/* frip */
GEN_FLOAT_B(rip, 0x08, 0x0E, 1, PPC_FLOAT_EXT);
/* frim */
GEN_FLOAT_B(rim, 0x08, 0x0F, 1, PPC_FLOAT_EXT);
static void gen_ftdiv(DisasContext *ctx)
{
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
gen_helper_ftdiv(cpu_crf[crfD(ctx->opcode)], cpu_fpr[rA(ctx->opcode)],
cpu_fpr[rB(ctx->opcode)]);
}
static void gen_ftsqrt(DisasContext *ctx)
{
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
gen_helper_ftsqrt(cpu_crf[crfD(ctx->opcode)], cpu_fpr[rB(ctx->opcode)]);
}
/*** Floating-Point compare ***/
/* fcmpo */
static void gen_fcmpo(DisasContext *ctx)
{
TCGv_i32 crf;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
gen_reset_fpstatus();
crf = tcg_const_i32(crfD(ctx->opcode));
gen_helper_fcmpo(cpu_env, cpu_fpr[rA(ctx->opcode)],
cpu_fpr[rB(ctx->opcode)], crf);
tcg_temp_free_i32(crf);
gen_helper_float_check_status(cpu_env);
}
/* fcmpu */
static void gen_fcmpu(DisasContext *ctx)
{
TCGv_i32 crf;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
gen_reset_fpstatus();
crf = tcg_const_i32(crfD(ctx->opcode));
gen_helper_fcmpu(cpu_env, cpu_fpr[rA(ctx->opcode)],
cpu_fpr[rB(ctx->opcode)], crf);
tcg_temp_free_i32(crf);
gen_helper_float_check_status(cpu_env);
}
/*** Floating-point move ***/
/* fabs */
/* XXX: beware that fabs never checks for NaNs nor update FPSCR */
static void gen_fabs(DisasContext *ctx)
{
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
tcg_gen_andi_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpr[rB(ctx->opcode)],
~(1ULL << 63));
if (unlikely(Rc(ctx->opcode))) {
gen_set_cr1_from_fpscr(ctx);
}
}
/* fmr - fmr. */
/* XXX: beware that fmr never checks for NaNs nor update FPSCR */
static void gen_fmr(DisasContext *ctx)
{
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
tcg_gen_mov_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpr[rB(ctx->opcode)]);
if (unlikely(Rc(ctx->opcode))) {
gen_set_cr1_from_fpscr(ctx);
}
}
/* fnabs */
/* XXX: beware that fnabs never checks for NaNs nor update FPSCR */
static void gen_fnabs(DisasContext *ctx)
{
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
tcg_gen_ori_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpr[rB(ctx->opcode)],
1ULL << 63);
if (unlikely(Rc(ctx->opcode))) {
gen_set_cr1_from_fpscr(ctx);
}
}
/* fneg */
/* XXX: beware that fneg never checks for NaNs nor update FPSCR */
static void gen_fneg(DisasContext *ctx)
{
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
tcg_gen_xori_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpr[rB(ctx->opcode)],
1ULL << 63);
if (unlikely(Rc(ctx->opcode))) {
gen_set_cr1_from_fpscr(ctx);
}
}
/* fcpsgn: PowerPC 2.05 specification */
/* XXX: beware that fcpsgn never checks for NaNs nor update FPSCR */
static void gen_fcpsgn(DisasContext *ctx)
{
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
tcg_gen_deposit_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpr[rA(ctx->opcode)],
cpu_fpr[rB(ctx->opcode)], 0, 63);
if (unlikely(Rc(ctx->opcode))) {
gen_set_cr1_from_fpscr(ctx);
}
}
static void gen_fmrgew(DisasContext *ctx)
{
TCGv_i64 b0;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
b0 = tcg_temp_new_i64();
tcg_gen_shri_i64(b0, cpu_fpr[rB(ctx->opcode)], 32);
tcg_gen_deposit_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpr[rA(ctx->opcode)],
b0, 0, 32);
tcg_temp_free_i64(b0);
}
static void gen_fmrgow(DisasContext *ctx)
{
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
tcg_gen_deposit_i64(cpu_fpr[rD(ctx->opcode)],
cpu_fpr[rB(ctx->opcode)],
cpu_fpr[rA(ctx->opcode)],
32, 32);
}
/*** Floating-Point status & ctrl register ***/
/* mcrfs */
static void gen_mcrfs(DisasContext *ctx)
{
TCGv tmp = tcg_temp_new();
TCGv_i32 tmask;
TCGv_i64 tnew_fpscr = tcg_temp_new_i64();
int bfa;
int nibble;
int shift;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
bfa = crfS(ctx->opcode);
nibble = 7 - bfa;
shift = 4 * nibble;
tcg_gen_shri_tl(tmp, cpu_fpscr, shift);
tcg_gen_trunc_tl_i32(cpu_crf[crfD(ctx->opcode)], tmp);
tcg_gen_andi_i32(cpu_crf[crfD(ctx->opcode)], cpu_crf[crfD(ctx->opcode)], 0xf);
tcg_temp_free(tmp);
tcg_gen_extu_tl_i64(tnew_fpscr, cpu_fpscr);
/* Only the exception bits (including FX) should be cleared if read */
tcg_gen_andi_i64(tnew_fpscr, tnew_fpscr, ~((0xF << shift) & FP_EX_CLEAR_BITS));
/* FEX and VX need to be updated, so don't set fpscr directly */
tmask = tcg_const_i32(1 << nibble);
gen_helper_store_fpscr(cpu_env, tnew_fpscr, tmask);
tcg_temp_free_i32(tmask);
tcg_temp_free_i64(tnew_fpscr);
}
/* mffs */
static void gen_mffs(DisasContext *ctx)
{
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
gen_reset_fpstatus();
tcg_gen_extu_tl_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpscr);
if (unlikely(Rc(ctx->opcode))) {
gen_set_cr1_from_fpscr(ctx);
}
}
/* mtfsb0 */
static void gen_mtfsb0(DisasContext *ctx)
{
uint8_t crb;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
crb = 31 - crbD(ctx->opcode);
gen_reset_fpstatus();
if (likely(crb != FPSCR_FEX && crb != FPSCR_VX)) {
TCGv_i32 t0;
t0 = tcg_const_i32(crb);
gen_helper_fpscr_clrbit(cpu_env, t0);
tcg_temp_free_i32(t0);
}
if (unlikely(Rc(ctx->opcode) != 0)) {
tcg_gen_trunc_tl_i32(cpu_crf[1], cpu_fpscr);
tcg_gen_shri_i32(cpu_crf[1], cpu_crf[1], FPSCR_OX);
}
}
/* mtfsb1 */
static void gen_mtfsb1(DisasContext *ctx)
{
uint8_t crb;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
crb = 31 - crbD(ctx->opcode);
gen_reset_fpstatus();
/* XXX: we pretend we can only do IEEE floating-point computations */
if (likely(crb != FPSCR_FEX && crb != FPSCR_VX && crb != FPSCR_NI)) {
TCGv_i32 t0;
t0 = tcg_const_i32(crb);
gen_helper_fpscr_setbit(cpu_env, t0);
tcg_temp_free_i32(t0);
}
if (unlikely(Rc(ctx->opcode) != 0)) {
tcg_gen_trunc_tl_i32(cpu_crf[1], cpu_fpscr);
tcg_gen_shri_i32(cpu_crf[1], cpu_crf[1], FPSCR_OX);
}
/* We can raise a differed exception */
gen_helper_float_check_status(cpu_env);
}
/* mtfsf */
static void gen_mtfsf(DisasContext *ctx)
{
TCGv_i32 t0;
int flm, l, w;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
flm = FPFLM(ctx->opcode);
l = FPL(ctx->opcode);
w = FPW(ctx->opcode);
if (unlikely(w & !(ctx->insns_flags2 & PPC2_ISA205))) {
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
return;
}
gen_reset_fpstatus();
if (l) {
t0 = tcg_const_i32((ctx->insns_flags2 & PPC2_ISA205) ? 0xffff : 0xff);
} else {
t0 = tcg_const_i32(flm << (w * 8));
}
gen_helper_store_fpscr(cpu_env, cpu_fpr[rB(ctx->opcode)], t0);
tcg_temp_free_i32(t0);
if (unlikely(Rc(ctx->opcode) != 0)) {
tcg_gen_trunc_tl_i32(cpu_crf[1], cpu_fpscr);
tcg_gen_shri_i32(cpu_crf[1], cpu_crf[1], FPSCR_OX);
}
/* We can raise a differed exception */
gen_helper_float_check_status(cpu_env);
}
/* mtfsfi */
static void gen_mtfsfi(DisasContext *ctx)
{
int bf, sh, w;
TCGv_i64 t0;
TCGv_i32 t1;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
w = FPW(ctx->opcode);
bf = FPBF(ctx->opcode);
if (unlikely(w & !(ctx->insns_flags2 & PPC2_ISA205))) {
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
return;
}
sh = (8 * w) + 7 - bf;
gen_reset_fpstatus();
t0 = tcg_const_i64(((uint64_t)FPIMM(ctx->opcode)) << (4 * sh));
t1 = tcg_const_i32(1 << sh);
gen_helper_store_fpscr(cpu_env, t0, t1);
tcg_temp_free_i64(t0);
tcg_temp_free_i32(t1);
if (unlikely(Rc(ctx->opcode) != 0)) {
tcg_gen_trunc_tl_i32(cpu_crf[1], cpu_fpscr);
tcg_gen_shri_i32(cpu_crf[1], cpu_crf[1], FPSCR_OX);
}
/* We can raise a differed exception */
gen_helper_float_check_status(cpu_env);
}
/*** Floating-point load ***/
#define GEN_LDF(name, ldop, opc, type) \
static void glue(gen_, name)(DisasContext *ctx) \
{ \
TCGv EA; \
if (unlikely(!ctx->fpu_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_FPU); \
return; \
} \
gen_set_access_type(ctx, ACCESS_FLOAT); \
EA = tcg_temp_new(); \
gen_addr_imm_index(ctx, EA, 0); \
gen_qemu_##ldop(ctx, cpu_fpr[rD(ctx->opcode)], EA); \
tcg_temp_free(EA); \
}
#define GEN_LDUF(name, ldop, opc, type) \
static void glue(gen_, name##u)(DisasContext *ctx) \
{ \
TCGv EA; \
if (unlikely(!ctx->fpu_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_FPU); \
return; \
} \
if (unlikely(rA(ctx->opcode) == 0)) { \
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL); \
return; \
} \
gen_set_access_type(ctx, ACCESS_FLOAT); \
EA = tcg_temp_new(); \
gen_addr_imm_index(ctx, EA, 0); \
gen_qemu_##ldop(ctx, cpu_fpr[rD(ctx->opcode)], EA); \
tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA); \
tcg_temp_free(EA); \
}
#define GEN_LDUXF(name, ldop, opc, type) \
static void glue(gen_, name##ux)(DisasContext *ctx) \
{ \
TCGv EA; \
if (unlikely(!ctx->fpu_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_FPU); \
return; \
} \
if (unlikely(rA(ctx->opcode) == 0)) { \
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL); \
return; \
} \
gen_set_access_type(ctx, ACCESS_FLOAT); \
EA = tcg_temp_new(); \
gen_addr_reg_index(ctx, EA); \
gen_qemu_##ldop(ctx, cpu_fpr[rD(ctx->opcode)], EA); \
tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA); \
tcg_temp_free(EA); \
}
#define GEN_LDXF(name, ldop, opc2, opc3, type) \
static void glue(gen_, name##x)(DisasContext *ctx) \
{ \
TCGv EA; \
if (unlikely(!ctx->fpu_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_FPU); \
return; \
} \
gen_set_access_type(ctx, ACCESS_FLOAT); \
EA = tcg_temp_new(); \
gen_addr_reg_index(ctx, EA); \
gen_qemu_##ldop(ctx, cpu_fpr[rD(ctx->opcode)], EA); \
tcg_temp_free(EA); \
}
#define GEN_LDFS(name, ldop, op, type) \
GEN_LDF(name, ldop, op | 0x20, type); \
GEN_LDUF(name, ldop, op | 0x21, type); \
GEN_LDUXF(name, ldop, op | 0x01, type); \
GEN_LDXF(name, ldop, 0x17, op | 0x00, type)
static inline void gen_qemu_ld32fs(DisasContext *ctx, TCGv_i64 arg1, TCGv arg2)
{
TCGv t0 = tcg_temp_new();
TCGv_i32 t1 = tcg_temp_new_i32();
gen_qemu_ld32u(ctx, t0, arg2);
tcg_gen_trunc_tl_i32(t1, t0);
tcg_temp_free(t0);
gen_helper_float32_to_float64(arg1, cpu_env, t1);
tcg_temp_free_i32(t1);
}
/* lfd lfdu lfdux lfdx */
GEN_LDFS(lfd, ld64_i64, 0x12, PPC_FLOAT);
/* lfs lfsu lfsux lfsx */
GEN_LDFS(lfs, ld32fs, 0x10, PPC_FLOAT);
/* lfdp */
static void gen_lfdp(DisasContext *ctx)
{
TCGv EA;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
gen_set_access_type(ctx, ACCESS_FLOAT);
EA = tcg_temp_new();
gen_addr_imm_index(ctx, EA, 0);
/* We only need to swap high and low halves. gen_qemu_ld64_i64 does
necessary 64-bit byteswap already. */
if (unlikely(ctx->le_mode)) {
gen_qemu_ld64_i64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
tcg_gen_addi_tl(EA, EA, 8);
gen_qemu_ld64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
} else {
gen_qemu_ld64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
tcg_gen_addi_tl(EA, EA, 8);
gen_qemu_ld64_i64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
}
tcg_temp_free(EA);
}
/* lfdpx */
static void gen_lfdpx(DisasContext *ctx)
{
TCGv EA;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
gen_set_access_type(ctx, ACCESS_FLOAT);
EA = tcg_temp_new();
gen_addr_reg_index(ctx, EA);
/* We only need to swap high and low halves. gen_qemu_ld64_i64 does
necessary 64-bit byteswap already. */
if (unlikely(ctx->le_mode)) {
gen_qemu_ld64_i64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
tcg_gen_addi_tl(EA, EA, 8);
gen_qemu_ld64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
} else {
gen_qemu_ld64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
tcg_gen_addi_tl(EA, EA, 8);
gen_qemu_ld64_i64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
}
tcg_temp_free(EA);
}
/* lfiwax */
static void gen_lfiwax(DisasContext *ctx)
{
TCGv EA;
TCGv t0;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
gen_set_access_type(ctx, ACCESS_FLOAT);
EA = tcg_temp_new();
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, EA);
gen_qemu_ld32s(ctx, t0, EA);
tcg_gen_ext_tl_i64(cpu_fpr[rD(ctx->opcode)], t0);
tcg_temp_free(EA);
tcg_temp_free(t0);
}
/* lfiwzx */
static void gen_lfiwzx(DisasContext *ctx)
{
TCGv EA;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
gen_set_access_type(ctx, ACCESS_FLOAT);
EA = tcg_temp_new();
gen_addr_reg_index(ctx, EA);
gen_qemu_ld32u_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
tcg_temp_free(EA);
}
/*** Floating-point store ***/
#define GEN_STF(name, stop, opc, type) \
static void glue(gen_, name)(DisasContext *ctx) \
{ \
TCGv EA; \
if (unlikely(!ctx->fpu_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_FPU); \
return; \
} \
gen_set_access_type(ctx, ACCESS_FLOAT); \
EA = tcg_temp_new(); \
gen_addr_imm_index(ctx, EA, 0); \
gen_qemu_##stop(ctx, cpu_fpr[rS(ctx->opcode)], EA); \
tcg_temp_free(EA); \
}
#define GEN_STUF(name, stop, opc, type) \
static void glue(gen_, name##u)(DisasContext *ctx) \
{ \
TCGv EA; \
if (unlikely(!ctx->fpu_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_FPU); \
return; \
} \
if (unlikely(rA(ctx->opcode) == 0)) { \
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL); \
return; \
} \
gen_set_access_type(ctx, ACCESS_FLOAT); \
EA = tcg_temp_new(); \
gen_addr_imm_index(ctx, EA, 0); \
gen_qemu_##stop(ctx, cpu_fpr[rS(ctx->opcode)], EA); \
tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA); \
tcg_temp_free(EA); \
}
#define GEN_STUXF(name, stop, opc, type) \
static void glue(gen_, name##ux)(DisasContext *ctx) \
{ \
TCGv EA; \
if (unlikely(!ctx->fpu_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_FPU); \
return; \
} \
if (unlikely(rA(ctx->opcode) == 0)) { \
gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL); \
return; \
} \
gen_set_access_type(ctx, ACCESS_FLOAT); \
EA = tcg_temp_new(); \
gen_addr_reg_index(ctx, EA); \
gen_qemu_##stop(ctx, cpu_fpr[rS(ctx->opcode)], EA); \
tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA); \
tcg_temp_free(EA); \
}
#define GEN_STXF(name, stop, opc2, opc3, type) \
static void glue(gen_, name##x)(DisasContext *ctx) \
{ \
TCGv EA; \
if (unlikely(!ctx->fpu_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_FPU); \
return; \
} \
gen_set_access_type(ctx, ACCESS_FLOAT); \
EA = tcg_temp_new(); \
gen_addr_reg_index(ctx, EA); \
gen_qemu_##stop(ctx, cpu_fpr[rS(ctx->opcode)], EA); \
tcg_temp_free(EA); \
}
#define GEN_STFS(name, stop, op, type) \
GEN_STF(name, stop, op | 0x20, type); \
GEN_STUF(name, stop, op | 0x21, type); \
GEN_STUXF(name, stop, op | 0x01, type); \
GEN_STXF(name, stop, 0x17, op | 0x00, type)
static inline void gen_qemu_st32fs(DisasContext *ctx, TCGv_i64 arg1, TCGv arg2)
{
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv t1 = tcg_temp_new();
gen_helper_float64_to_float32(t0, cpu_env, arg1);
tcg_gen_extu_i32_tl(t1, t0);
tcg_temp_free_i32(t0);
gen_qemu_st32(ctx, t1, arg2);
tcg_temp_free(t1);
}
/* stfd stfdu stfdux stfdx */
GEN_STFS(stfd, st64_i64, 0x16, PPC_FLOAT);
/* stfs stfsu stfsux stfsx */
GEN_STFS(stfs, st32fs, 0x14, PPC_FLOAT);
/* stfdp */
static void gen_stfdp(DisasContext *ctx)
{
TCGv EA;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
gen_set_access_type(ctx, ACCESS_FLOAT);
EA = tcg_temp_new();
gen_addr_imm_index(ctx, EA, 0);
/* We only need to swap high and low halves. gen_qemu_st64_i64 does
necessary 64-bit byteswap already. */
if (unlikely(ctx->le_mode)) {
gen_qemu_st64_i64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
tcg_gen_addi_tl(EA, EA, 8);
gen_qemu_st64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
} else {
gen_qemu_st64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
tcg_gen_addi_tl(EA, EA, 8);
gen_qemu_st64_i64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
}
tcg_temp_free(EA);
}
/* stfdpx */
static void gen_stfdpx(DisasContext *ctx)
{
TCGv EA;
if (unlikely(!ctx->fpu_enabled)) {
gen_exception(ctx, POWERPC_EXCP_FPU);
return;
}
gen_set_access_type(ctx, ACCESS_FLOAT);
EA = tcg_temp_new();
gen_addr_reg_index(ctx, EA);
/* We only need to swap high and low halves. gen_qemu_st64_i64 does
necessary 64-bit byteswap already. */
if (unlikely(ctx->le_mode)) {
gen_qemu_st64_i64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
tcg_gen_addi_tl(EA, EA, 8);
gen_qemu_st64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
} else {
gen_qemu_st64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
tcg_gen_addi_tl(EA, EA, 8);
gen_qemu_st64_i64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
}
tcg_temp_free(EA);
}
/* Optional: */
static inline void gen_qemu_st32fiw(DisasContext *ctx, TCGv_i64 arg1, TCGv arg2)
{
TCGv t0 = tcg_temp_new();
tcg_gen_trunc_i64_tl(t0, arg1),
gen_qemu_st32(ctx, t0, arg2);
tcg_temp_free(t0);
}
/* stfiwx */
GEN_STXF(stfiw, st32fiw, 0x17, 0x1E, PPC_FLOAT_STFIWX);
/* POWER2 specific instructions */
/* Quad manipulation (load/store two floats at a time) */
/* lfq */
static void gen_lfq(DisasContext *ctx)
{
int rd = rD(ctx->opcode);
TCGv t0;
gen_set_access_type(ctx, ACCESS_FLOAT);
t0 = tcg_temp_new();
gen_addr_imm_index(ctx, t0, 0);
gen_qemu_ld64_i64(ctx, cpu_fpr[rd], t0);
gen_addr_add(ctx, t0, t0, 8);
gen_qemu_ld64_i64(ctx, cpu_fpr[(rd + 1) % 32], t0);
tcg_temp_free(t0);
}
/* lfqu */
static void gen_lfqu(DisasContext *ctx)
{
int ra = rA(ctx->opcode);
int rd = rD(ctx->opcode);
TCGv t0, t1;
gen_set_access_type(ctx, ACCESS_FLOAT);
t0 = tcg_temp_new();
t1 = tcg_temp_new();
gen_addr_imm_index(ctx, t0, 0);
gen_qemu_ld64_i64(ctx, cpu_fpr[rd], t0);
gen_addr_add(ctx, t1, t0, 8);
gen_qemu_ld64_i64(ctx, cpu_fpr[(rd + 1) % 32], t1);
if (ra != 0)
tcg_gen_mov_tl(cpu_gpr[ra], t0);
tcg_temp_free(t0);
tcg_temp_free(t1);
}
/* lfqux */
static void gen_lfqux(DisasContext *ctx)
{
int ra = rA(ctx->opcode);
int rd = rD(ctx->opcode);
gen_set_access_type(ctx, ACCESS_FLOAT);
TCGv t0, t1;
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
gen_qemu_ld64_i64(ctx, cpu_fpr[rd], t0);
t1 = tcg_temp_new();
gen_addr_add(ctx, t1, t0, 8);
gen_qemu_ld64_i64(ctx, cpu_fpr[(rd + 1) % 32], t1);
tcg_temp_free(t1);
if (ra != 0)
tcg_gen_mov_tl(cpu_gpr[ra], t0);
tcg_temp_free(t0);
}
/* lfqx */
static void gen_lfqx(DisasContext *ctx)
{
int rd = rD(ctx->opcode);
TCGv t0;
gen_set_access_type(ctx, ACCESS_FLOAT);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
gen_qemu_ld64_i64(ctx, cpu_fpr[rd], t0);
gen_addr_add(ctx, t0, t0, 8);
gen_qemu_ld64_i64(ctx, cpu_fpr[(rd + 1) % 32], t0);
tcg_temp_free(t0);
}
/* stfq */
static void gen_stfq(DisasContext *ctx)
{
int rd = rD(ctx->opcode);
TCGv t0;
gen_set_access_type(ctx, ACCESS_FLOAT);
t0 = tcg_temp_new();
gen_addr_imm_index(ctx, t0, 0);
gen_qemu_st64_i64(ctx, cpu_fpr[rd], t0);
gen_addr_add(ctx, t0, t0, 8);
gen_qemu_st64_i64(ctx, cpu_fpr[(rd + 1) % 32], t0);
tcg_temp_free(t0);
}
/* stfqu */
static void gen_stfqu(DisasContext *ctx)
{
int ra = rA(ctx->opcode);
int rd = rD(ctx->opcode);
TCGv t0, t1;
gen_set_access_type(ctx, ACCESS_FLOAT);
t0 = tcg_temp_new();
gen_addr_imm_index(ctx, t0, 0);
gen_qemu_st64_i64(ctx, cpu_fpr[rd], t0);
t1 = tcg_temp_new();
gen_addr_add(ctx, t1, t0, 8);
gen_qemu_st64_i64(ctx, cpu_fpr[(rd + 1) % 32], t1);
tcg_temp_free(t1);
if (ra != 0)
tcg_gen_mov_tl(cpu_gpr[ra], t0);
tcg_temp_free(t0);
}
/* stfqux */
static void gen_stfqux(DisasContext *ctx)
{
int ra = rA(ctx->opcode);
int rd = rD(ctx->opcode);
TCGv t0, t1;
gen_set_access_type(ctx, ACCESS_FLOAT);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
gen_qemu_st64_i64(ctx, cpu_fpr[rd], t0);
t1 = tcg_temp_new();
gen_addr_add(ctx, t1, t0, 8);
gen_qemu_st64_i64(ctx, cpu_fpr[(rd + 1) % 32], t1);
tcg_temp_free(t1);
if (ra != 0)
tcg_gen_mov_tl(cpu_gpr[ra], t0);
tcg_temp_free(t0);
}
/* stfqx */
static void gen_stfqx(DisasContext *ctx)
{
int rd = rD(ctx->opcode);
TCGv t0;
gen_set_access_type(ctx, ACCESS_FLOAT);
t0 = tcg_temp_new();
gen_addr_reg_index(ctx, t0);
gen_qemu_st64_i64(ctx, cpu_fpr[rd], t0);
gen_addr_add(ctx, t0, t0, 8);
gen_qemu_st64_i64(ctx, cpu_fpr[(rd + 1) % 32], t0);
tcg_temp_free(t0);
}
#undef _GEN_FLOAT_ACB
#undef GEN_FLOAT_ACB
#undef _GEN_FLOAT_AB
#undef GEN_FLOAT_AB
#undef _GEN_FLOAT_AC
#undef GEN_FLOAT_AC
#undef GEN_FLOAT_B
#undef GEN_FLOAT_BS
#undef GEN_LDF
#undef GEN_LDUF
#undef GEN_LDUXF
#undef GEN_LDXF
#undef GEN_LDFS
#undef GEN_STF
#undef GEN_STUF
#undef GEN_STUXF
#undef GEN_STXF
#undef GEN_STFS
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