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提交 3cc62370 编写于 作者: B bellard
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ppc fixes (Jocelyn Mayer) 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1297 c046a42c-6fe2-441c-8c8c-71466251a162
上级 c4decf37
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Showing with 101 addition and 67 deletion
target-ppc/cpu.h
浏览文件 @ 3cc62370
......@@ -24,8 +24,6 @@
#include "cpu-defs.h"
//#define USE_OPEN_FIRMWARE
#include "config.h"
#include <setjmp.h>
......
target-ppc/helper.c
浏览文件 @ 3cc62370
......@@ -18,10 +18,6 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "exec.h"
#if defined (USE_OPEN_FIRMWARE)
#include <time.h>
#include "of.h"
#endif
//#define DEBUG_MMU
//#define DEBUG_BATS
......@@ -688,18 +684,6 @@ void do_interrupt (CPUState *env)
}
/* Generate informations in save/restore registers */
switch (excp) {
case EXCP_OFCALL:
#if defined (USE_OPEN_FIRMWARE)
env->gpr[3] = OF_client_entry((void *)env->gpr[3]);
#endif
return;
case EXCP_RTASCALL:
#if defined (USE_OPEN_FIRMWARE)
printf("RTAS call !\n");
env->gpr[3] = RTAS_entry((void *)env->gpr[3]);
printf("RTAS call done\n");
#endif
return;
case EXCP_NONE:
/* Do nothing */
#if defined (DEBUG_EXCEPTIONS)
......
target-ppc/op.c
浏览文件 @ 3cc62370
......@@ -697,9 +697,9 @@ PPC_OP(addzeo)
PPC_OP(divw)
{
if ((Ts0 == INT32_MIN && Ts1 == -1) || Ts1 == 0) {
Ts0 = (-1) * (T0 >> 31);
T0 = (int32_t)((-1) * (T0 >> 31));
} else {
Ts0 /= Ts1;
T0 = (Ts0 / Ts1);
}
RETURN();
}
......@@ -712,7 +712,7 @@ PPC_OP(divwo)
T0 = (-1) * (T0 >> 31);
} else {
xer_ov = 0;
Ts0 /= Ts1;
T0 = (Ts0 / Ts1);
}
RETURN();
}
......@@ -744,7 +744,7 @@ PPC_OP(divwuo)
/* multiply high word */
PPC_OP(mulhw)
{
Ts0 = ((int64_t)Ts0 * (int64_t)Ts1) >> 32;
T0 = ((int64_t)Ts0 * (int64_t)Ts1) >> 32;
RETURN();
}
......@@ -758,7 +758,7 @@ PPC_OP(mulhwu)
/* multiply low immediate */
PPC_OP(mulli)
{
Ts0 *= SPARAM(1);
T0 = (Ts0 * SPARAM(1));
RETURN();
}
......@@ -779,7 +779,7 @@ PPC_OP(mullwo)
} else {
xer_ov = 0;
}
Ts0 = res;
T0 = (int32_t)res;
RETURN();
}
......@@ -787,7 +787,7 @@ PPC_OP(mullwo)
PPC_OP(neg)
{
if (T0 != 0x80000000) {
Ts0 = -Ts0;
T0 = -Ts0;
}
RETURN();
}
......@@ -799,7 +799,7 @@ PPC_OP(nego)
xer_so = 1;
} else {
xer_ov = 0;
Ts0 = -Ts0;
T0 = -Ts0;
}
RETURN();
}
......@@ -1047,14 +1047,14 @@ PPC_OP(eqv)
/* extend sign byte */
PPC_OP(extsb)
{
Ts0 = (int8_t)(Ts0);
T0 = (int32_t)((int8_t)(Ts0));
RETURN();
}
/* extend sign half word */
PPC_OP(extsh)
{
Ts0 = (int16_t)(Ts0);
T0 = (int32_t)((int16_t)(Ts0));
RETURN();
}
......@@ -1175,8 +1175,8 @@ PPC_OP(sraw)
/* shift right algebraic word immediate */
PPC_OP(srawi)
{
Ts1 = Ts0;
Ts0 = Ts0 >> PARAM(1);
T1 = T0;
T0 = (Ts0 >> PARAM(1));
if (Ts1 < 0 && (Ts1 & PARAM(2)) != 0) {
xer_ca = 1;
} else {
......@@ -1207,7 +1207,7 @@ PPC_OP(fadd)
/* fadds - fadds. */
PPC_OP(fadds)
{
FTS0 += FTS1;
FT0 = FTS0 + FTS1;
RETURN();
}
......@@ -1221,7 +1221,7 @@ PPC_OP(fsub)
/* fsubs - fsubs. */
PPC_OP(fsubs)
{
FTS0 -= FTS1;
FT0 = FTS0 - FTS1;
RETURN();
}
......@@ -1235,7 +1235,7 @@ PPC_OP(fmul)
/* fmuls - fmuls. */
PPC_OP(fmuls)
{
FTS0 *= FTS1;
FT0 = FTS0 * FTS1;
RETURN();
}
......@@ -1249,7 +1249,7 @@ PPC_OP(fdiv)
/* fdivs - fdivs. */
PPC_OP(fdivs)
{
FTS0 /= FTS1;
FT0 = FTS0 / FTS1;
RETURN();
}
......@@ -1299,7 +1299,7 @@ PPC_OP(fmadd)
/* fmadds - fmadds. */
PPC_OP(fmadds)
{
FTS0 = (FTS0 * FTS1) + FTS2;
FT0 = (FTS0 * FTS1) + FTS2;
RETURN();
}
......@@ -1313,7 +1313,7 @@ PPC_OP(fmsub)
/* fmsubs - fmsubs. */
PPC_OP(fmsubs)
{
FTS0 = (FTS0 * FTS1) - FTS2;
FT0 = (FTS0 * FTS1) - FTS2;
RETURN();
}
......@@ -1349,7 +1349,7 @@ PPC_OP(fnmsubs)
/* frsp - frsp. */
PPC_OP(frsp)
{
FTS0 = FT0;
FT0 = (float)FT0;
RETURN();
}
......
target-ppc/op_helper.c
浏览文件 @ 3cc62370
......@@ -188,10 +188,17 @@ void do_load_fpscr (void)
} u;
int i;
u.s.u[0] = 0;
u.s.u[1] = 0;
#ifdef WORDS_BIGENDIAN
#define WORD0 0
#define WORD1 1
#else
#define WORD0 1
#define WORD1 0
#endif
u.s.u[WORD0] = 0;
u.s.u[WORD1] = 0;
for (i = 0; i < 8; i++)
u.s.u[1] |= env->fpscr[i] << (4 * i);
u.s.u[WORD1] |= env->fpscr[i] << (4 * i);
FT0 = u.d;
}
......@@ -210,10 +217,10 @@ void do_store_fpscr (uint32_t mask)
u.d = FT0;
if (mask & 0x80)
env->fpscr[0] = (env->fpscr[0] & 0x9) | ((u.s.u[1] >> 28) & ~0x9);
env->fpscr[0] = (env->fpscr[0] & 0x9) | ((u.s.u[WORD1] >> 28) & ~0x9);
for (i = 1; i < 7; i++) {
if (mask & (1 << (7 - i)))
env->fpscr[i] = (u.s.u[1] >> (4 * (7 - i))) & 0xF;
env->fpscr[i] = (u.s.u[WORD1] >> (4 * (7 - i))) & 0xF;
}
/* TODO: update FEX & VX */
/* Set rounding mode */
......
target-ppc/translate.c
浏览文件 @ 3cc62370
......@@ -134,12 +134,13 @@ typedef struct DisasContext {
target_ulong nip;
uint32_t opcode;
uint32_t exception;
/* Execution mode */
/* Routine used to access memory */
int mem_idx;
/* Translation flags */
#if !defined(CONFIG_USER_ONLY)
int supervisor;
#endif
/* Routine used to access memory */
int mem_idx;
int fpu_enabled;
} DisasContext;
typedef struct opc_handler_t {
......@@ -330,19 +331,6 @@ GEN_HANDLER(stop, 0x06, 0x00, 0xFF, 0x03FFFFC1, PPC_COMMON)
RET_EXCP(ctx, EXCP_HLT, 0);
}
/* Special opcode to call open-firmware */
GEN_HANDLER(of_enter, 0x06, 0x01, 0xFF, 0x03FFFFC1, PPC_COMMON)
{
RET_EXCP(ctx, EXCP_OFCALL, 0);
}
/* Special opcode to call RTAS */
GEN_HANDLER(rtas_enter, 0x06, 0x02, 0xFF, 0x03FFFFC1, PPC_COMMON)
{
printf("RTAS entry point !\n");
RET_EXCP(ctx, EXCP_RTASCALL, 0);
}
static opc_handler_t invalid_handler = {
.inval = 0xFFFFFFFF,
.type = PPC_NONE,
......@@ -764,6 +752,10 @@ __GEN_LOGICAL2(srw, 0x18, 0x10);
#define _GEN_FLOAT_ACB(name, op1, op2) \
GEN_HANDLER(f##name, op1, op2, 0xFF, 0x00000000, PPC_FLOAT) \
{ \
if (!ctx->fpu_enabled) { \
RET_EXCP(ctx, EXCP_NO_FP, 0); \
return; \
} \
gen_op_reset_scrfx(); \
gen_op_load_fpr_FT0(rA(ctx->opcode)); \
gen_op_load_fpr_FT1(rC(ctx->opcode)); \
......@@ -781,6 +773,10 @@ _GEN_FLOAT_ACB(name##s, 0x3B, op2);
#define _GEN_FLOAT_AB(name, op1, op2, inval) \
GEN_HANDLER(f##name, op1, op2, 0xFF, inval, PPC_FLOAT) \
{ \
if (!ctx->fpu_enabled) { \
RET_EXCP(ctx, EXCP_NO_FP, 0); \
return; \
} \
gen_op_reset_scrfx(); \
gen_op_load_fpr_FT0(rA(ctx->opcode)); \
gen_op_load_fpr_FT1(rB(ctx->opcode)); \
......@@ -796,6 +792,10 @@ _GEN_FLOAT_AB(name##s, 0x3B, op2, inval);
#define _GEN_FLOAT_AC(name, op1, op2, inval) \
GEN_HANDLER(f##name, op1, op2, 0xFF, inval, PPC_FLOAT) \
{ \
if (!ctx->fpu_enabled) { \
RET_EXCP(ctx, EXCP_NO_FP, 0); \
return; \
} \
gen_op_reset_scrfx(); \
gen_op_load_fpr_FT0(rA(ctx->opcode)); \
gen_op_load_fpr_FT1(rC(ctx->opcode)); \
......@@ -811,6 +811,10 @@ _GEN_FLOAT_AC(name##s, 0x3B, op2, inval);
#define GEN_FLOAT_B(name, op2, op3) \
GEN_HANDLER(f##name, 0x3F, op2, op3, 0x001F0000, PPC_FLOAT) \
{ \
if (!ctx->fpu_enabled) { \
RET_EXCP(ctx, EXCP_NO_FP, 0); \
return; \
} \
gen_op_reset_scrfx(); \
gen_op_load_fpr_FT0(rB(ctx->opcode)); \
gen_op_f##name(); \
......@@ -822,6 +826,10 @@ GEN_HANDLER(f##name, 0x3F, op2, op3, 0x001F0000, PPC_FLOAT) \
#define GEN_FLOAT_BS(name, op2) \
GEN_HANDLER(f##name, 0x3F, op2, 0xFF, 0x001F07C0, PPC_FLOAT) \
{ \
if (!ctx->fpu_enabled) { \
RET_EXCP(ctx, EXCP_NO_FP, 0); \
return; \
} \
gen_op_reset_scrfx(); \
gen_op_load_fpr_FT0(rB(ctx->opcode)); \
gen_op_f##name(); \
......@@ -853,6 +861,10 @@ GEN_FLOAT_BS(sqrt, 0x16);
GEN_HANDLER(fsqrts, 0x3B, 0x16, 0xFF, 0x001F07C0, PPC_FLOAT_OPT)
{
if (!ctx->fpu_enabled) {
RET_EXCP(ctx, EXCP_NO_FP, 0);
return;
}
gen_op_reset_scrfx();
gen_op_load_fpr_FT0(rB(ctx->opcode));
gen_op_fsqrts();
......@@ -883,6 +895,10 @@ GEN_FLOAT_B(rsp, 0x0C, 0x00);
/* fcmpo */
GEN_HANDLER(fcmpo, 0x3F, 0x00, 0x00, 0x00600001, PPC_FLOAT)
{
if (!ctx->fpu_enabled) {
RET_EXCP(ctx, EXCP_NO_FP, 0);
return;
}
gen_op_reset_scrfx();
gen_op_load_fpr_FT0(rA(ctx->opcode));
gen_op_load_fpr_FT1(rB(ctx->opcode));
......@@ -893,6 +909,10 @@ GEN_HANDLER(fcmpo, 0x3F, 0x00, 0x00, 0x00600001, PPC_FLOAT)
/* fcmpu */
GEN_HANDLER(fcmpu, 0x3F, 0x00, 0x01, 0x00600001, PPC_FLOAT)
{
if (!ctx->fpu_enabled) {
RET_EXCP(ctx, EXCP_NO_FP, 0);
return;
}
gen_op_reset_scrfx();
gen_op_load_fpr_FT0(rA(ctx->opcode));
gen_op_load_fpr_FT1(rB(ctx->opcode));
......@@ -907,6 +927,10 @@ GEN_FLOAT_B(abs, 0x08, 0x08);
/* fmr - fmr. */
GEN_HANDLER(fmr, 0x3F, 0x08, 0x02, 0x001F0000, PPC_FLOAT)
{
if (!ctx->fpu_enabled) {
RET_EXCP(ctx, EXCP_NO_FP, 0);
return;
}
gen_op_reset_scrfx();
gen_op_load_fpr_FT0(rB(ctx->opcode));
gen_op_store_FT0_fpr(rD(ctx->opcode));
......@@ -923,6 +947,10 @@ GEN_FLOAT_B(neg, 0x08, 0x01);
/* mcrfs */
GEN_HANDLER(mcrfs, 0x3F, 0x00, 0x02, 0x0063F801, PPC_FLOAT)
{
if (!ctx->fpu_enabled) {
RET_EXCP(ctx, EXCP_NO_FP, 0);
return;
}
gen_op_load_fpscr_T0(crfS(ctx->opcode));
gen_op_store_T0_crf(crfD(ctx->opcode));
gen_op_clear_fpscr(crfS(ctx->opcode));
......@@ -931,6 +959,10 @@ GEN_HANDLER(mcrfs, 0x3F, 0x00, 0x02, 0x0063F801, PPC_FLOAT)
/* mffs */
GEN_HANDLER(mffs, 0x3F, 0x07, 0x12, 0x001FF800, PPC_FLOAT)
{
if (!ctx->fpu_enabled) {
RET_EXCP(ctx, EXCP_NO_FP, 0);
return;
}
gen_op_load_fpscr();
gen_op_store_FT0_fpr(rD(ctx->opcode));
if (Rc(ctx->opcode))
......@@ -942,6 +974,10 @@ GEN_HANDLER(mtfsb0, 0x3F, 0x06, 0x02, 0x001FF800, PPC_FLOAT)
{
uint8_t crb;
if (!ctx->fpu_enabled) {
RET_EXCP(ctx, EXCP_NO_FP, 0);
return;
}
crb = crbD(ctx->opcode) >> 2;
gen_op_load_fpscr_T0(crb);
gen_op_andi_(~(1 << (crbD(ctx->opcode) & 0x03)));
......@@ -955,6 +991,10 @@ GEN_HANDLER(mtfsb1, 0x3F, 0x06, 0x01, 0x001FF800, PPC_FLOAT)
{
uint8_t crb;
if (!ctx->fpu_enabled) {
RET_EXCP(ctx, EXCP_NO_FP, 0);
return;
}
crb = crbD(ctx->opcode) >> 2;
gen_op_load_fpscr_T0(crb);
gen_op_ori(1 << (crbD(ctx->opcode) & 0x03));
......@@ -966,6 +1006,10 @@ GEN_HANDLER(mtfsb1, 0x3F, 0x06, 0x01, 0x001FF800, PPC_FLOAT)
/* mtfsf */
GEN_HANDLER(mtfsf, 0x3F, 0x07, 0x16, 0x02010000, PPC_FLOAT)
{
if (!ctx->fpu_enabled) {
RET_EXCP(ctx, EXCP_NO_FP, 0);
return;
}
gen_op_load_fpr_FT0(rB(ctx->opcode));
gen_op_store_fpscr(FM(ctx->opcode));
if (Rc(ctx->opcode))
......@@ -975,6 +1019,10 @@ GEN_HANDLER(mtfsf, 0x3F, 0x07, 0x16, 0x02010000, PPC_FLOAT)
/* mtfsfi */
GEN_HANDLER(mtfsfi, 0x3F, 0x06, 0x04, 0x006f0800, PPC_FLOAT)
{
if (!ctx->fpu_enabled) {
RET_EXCP(ctx, EXCP_NO_FP, 0);
return;
}
gen_op_store_T0_fpscri(crbD(ctx->opcode) >> 2, FPIMM(ctx->opcode));
if (Rc(ctx->opcode))
gen_op_set_Rc1();
......@@ -1525,6 +1573,10 @@ GEN_STFS(fs, 0x14);
/* stfiwx */
GEN_HANDLER(stfiwx, 0x1F, 0x17, 0x1E, 0x00000001, PPC_FLOAT)
{
if (!ctx->fpu_enabled) {
RET_EXCP(ctx, EXCP_NO_FP, 0);
return;
}
RET_INVAL(ctx);
}
......@@ -2978,10 +3030,6 @@ void cpu_dump_state(CPUState *env, FILE *f,
cpu_fprintf(f, "reservation 0x%08x\n", env->reserve);
}
#if !defined(CONFIG_USER_ONLY) && defined (USE_OPENFIRMWARE)
int setup_machine (CPUPPCState *env, uint32_t mid);
#endif
CPUPPCState *cpu_ppc_init(void)
{
CPUPPCState *env;
......@@ -2991,14 +3039,10 @@ CPUPPCState *cpu_ppc_init(void)
env = qemu_mallocz(sizeof(CPUPPCState));
if (!env)
return NULL;
#if !defined(CONFIG_USER_ONLY) && defined (USE_OPEN_FIRMWARE)
setup_machine(env, 0);
#else
// env->spr[PVR] = 0; /* Basic PPC */
env->spr[PVR] = 0x00080100; /* G3 CPU */
// env->spr[PVR] = 0x00083100; /* MPC755 (G3 embedded) */
// env->spr[PVR] = 0x00070100; /* IBM 750FX */
#endif
tlb_flush(env, 1);
#if defined (DO_SINGLE_STEP)
/* Single step trace mode */
......@@ -3053,8 +3097,9 @@ int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
ctx.mem_idx = 0;
#else
ctx.supervisor = 1 - msr_pr;
ctx.mem_idx = (1 - msr_pr);
ctx.mem_idx = 1 - msr_pr;
#endif
ctx.fpu_enabled = msr_fp;
#if defined (DO_SINGLE_STEP)
/* Single step trace mode */
msr_se = 1;
......
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