Fix PowerPC FPSCR update and floating-point exception generation
in most useful cases. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3458 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
parent
a32ff1ad95
commit
7c58044c0a
@ -224,11 +224,6 @@ void cpu_loop(CPUPPCState *env)
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case POWERPC_EXCP_FP:
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EXCP_DUMP(env, "Floating point program exception\n");
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/* Set FX */
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env->fpscr[7] |= 0x8;
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/* Finally, update FEX */
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if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
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((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
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env->fpscr[7] |= 0x4;
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info.si_signo = SIGFPE;
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info.si_errno = 0;
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switch (env->error_code & 0xF) {
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@ -248,7 +243,7 @@ void cpu_loop(CPUPPCState *env)
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case POWERPC_EXCP_FP_VXSOFT:
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info.si_code = FPE_FLTINV;
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break;
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case POWERPC_EXCP_FP_VXNAN:
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case POWERPC_EXCP_FP_VXSNAN:
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case POWERPC_EXCP_FP_VXISI:
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case POWERPC_EXCP_FP_VXIDI:
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case POWERPC_EXCP_FP_VXIMZ:
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@ -829,12 +829,6 @@ void cpu_loop(CPUPPCState *env)
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switch (env->error_code & ~0xF) {
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case POWERPC_EXCP_FP:
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EXCP_DUMP(env, "Floating point program exception\n");
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/* Set FX */
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env->fpscr[7] |= 0x8;
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/* Finally, update FEX */
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if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
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((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
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env->fpscr[7] |= 0x4;
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info.si_signo = TARGET_SIGFPE;
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info.si_errno = 0;
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switch (env->error_code & 0xF) {
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@ -854,7 +848,7 @@ void cpu_loop(CPUPPCState *env)
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case POWERPC_EXCP_FP_VXSOFT:
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info.si_code = TARGET_FPE_FLTINV;
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break;
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case POWERPC_EXCP_FP_VXNAN:
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case POWERPC_EXCP_FP_VXSNAN:
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case POWERPC_EXCP_FP_VXISI:
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case POWERPC_EXCP_FP_VXIDI:
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case POWERPC_EXCP_FP_VXIMZ:
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@ -239,7 +239,7 @@ enum {
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POWERPC_EXCP_FP_UX = 0x02, /* FP underflow */
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POWERPC_EXCP_FP_ZX = 0x03, /* FP divide by zero */
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POWERPC_EXCP_FP_XX = 0x04, /* FP inexact */
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POWERPC_EXCP_FP_VXNAN = 0x05, /* FP invalid SNaN op */
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POWERPC_EXCP_FP_VXSNAN = 0x05, /* FP invalid SNaN op */
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POWERPC_EXCP_FP_VXISI = 0x06, /* FP invalid infinite subtraction */
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POWERPC_EXCP_FP_VXIDI = 0x07, /* FP invalid infinite divide */
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POWERPC_EXCP_FP_VXZDZ = 0x08, /* FP invalid zero divide */
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@ -433,14 +433,84 @@ enum {
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POWERPC_FLAG_PMM = 0x00000400,
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};
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/*****************************************************************************/
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/* Floating point status and control register */
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#define FPSCR_FX 31 /* Floating-point exception summary */
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#define FPSCR_FEX 30 /* Floating-point enabled exception summary */
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#define FPSCR_VX 29 /* Floating-point invalid operation exception summ. */
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#define FPSCR_OX 28 /* Floating-point overflow exception */
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#define FPSCR_UX 27 /* Floating-point underflow exception */
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#define FPSCR_ZX 26 /* Floating-point zero divide exception */
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#define FPSCR_XX 25 /* Floating-point inexact exception */
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#define FPSCR_VXSNAN 24 /* Floating-point invalid operation exception (sNan) */
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#define FPSCR_VXISI 23 /* Floating-point invalid operation exception (inf) */
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#define FPSCR_VXIDI 22 /* Floating-point invalid operation exception (inf) */
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#define FPSCR_VXZDZ 21 /* Floating-point invalid operation exception (zero) */
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#define FPSCR_VXIMZ 20 /* Floating-point invalid operation exception (inf) */
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#define FPSCR_VXVC 19 /* Floating-point invalid operation exception (comp) */
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#define FPSCR_FR 18 /* Floating-point fraction rounded */
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#define FPSCR_FI 17 /* Floating-point fraction inexact */
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#define FPSCR_C 16 /* Floating-point result class descriptor */
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#define FPSCR_FL 15 /* Floating-point less than or negative */
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#define FPSCR_FG 14 /* Floating-point greater than or negative */
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#define FPSCR_FE 13 /* Floating-point equal or zero */
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#define FPSCR_FU 12 /* Floating-point unordered or NaN */
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#define FPSCR_FPCC 12 /* Floating-point condition code */
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#define FPSCR_FPRF 12 /* Floating-point result flags */
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#define FPSCR_VXSOFT 10 /* Floating-point invalid operation exception (soft) */
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#define FPSCR_VXSQRT 9 /* Floating-point invalid operation exception (sqrt) */
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#define FPSCR_VXCVI 8 /* Floating-point invalid operation exception (int) */
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#define FPSCR_VE 7 /* Floating-point invalid operation exception enable */
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#define FPSCR_OE 6 /* Floating-point overflow exception enable */
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#define FPSCR_UE 5 /* Floating-point undeflow exception enable */
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#define FPSCR_ZE 4 /* Floating-point zero divide exception enable */
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#define FPSCR_XE 3 /* Floating-point inexact exception enable */
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#define FPSCR_NI 2 /* Floating-point non-IEEE mode */
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#define FPSCR_RN1 1
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#define FPSCR_RN 0 /* Floating-point rounding control */
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#define fpscr_fex (((env->fpscr) >> FPSCR_FEX) & 0x1)
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#define fpscr_vx (((env->fpscr) >> FPSCR_VX) & 0x1)
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#define fpscr_ox (((env->fpscr) >> FPSCR_OX) & 0x1)
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#define fpscr_ux (((env->fpscr) >> FPSCR_UX) & 0x1)
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#define fpscr_zx (((env->fpscr) >> FPSCR_ZX) & 0x1)
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#define fpscr_xx (((env->fpscr) >> FPSCR_XX) & 0x1)
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#define fpscr_vxsnan (((env->fpscr) >> FPSCR_VXSNAN) & 0x1)
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#define fpscr_vxisi (((env->fpscr) >> FPSCR_VXISI) & 0x1)
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#define fpscr_vxidi (((env->fpscr) >> FPSCR_VXIDI) & 0x1)
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#define fpscr_vxzdz (((env->fpscr) >> FPSCR_VXZDZ) & 0x1)
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#define fpscr_vximz (((env->fpscr) >> FPSCR_VXIMZ) & 0x1)
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#define fpscr_vxvc (((env->fpscr) >> FPSCR_VXVC) & 0x1)
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#define fpscr_fpcc (((env->fpscr) >> FPSCR_FPCC) & 0xF)
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#define fpscr_vxsoft (((env->fpscr) >> FPSCR_VXSOFT) & 0x1)
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#define fpscr_vxsqrt (((env->fpscr) >> FPSCR_VXSQRT) & 0x1)
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#define fpscr_vxcvi (((env->fpscr) >> FPSCR_VXCVI) & 0x1)
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#define fpscr_ve (((env->fpscr) >> FPSCR_VE) & 0x1)
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#define fpscr_oe (((env->fpscr) >> FPSCR_OE) & 0x1)
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#define fpscr_ue (((env->fpscr) >> FPSCR_UE) & 0x1)
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#define fpscr_ze (((env->fpscr) >> FPSCR_ZE) & 0x1)
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#define fpscr_xe (((env->fpscr) >> FPSCR_XE) & 0x1)
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#define fpscr_ni (((env->fpscr) >> FPSCR_NI) & 0x1)
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#define fpscr_rn (((env->fpscr) >> FPSCR_RN) & 0x3)
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/* Invalid operation exception summary */
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#define fpscr_ix ((env->fpscr) & ((1 << FPSCR_VXSNAN) | (1 << FPSCR_VXISI) | \
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(1 << FPSCR_VXIDI) | (1 << FPSCR_VXZDZ) | \
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(1 << FPSCR_VXIMZ) | (1 << FPSCR_VXVC) | \
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(1 << FPSCR_VXSOFT) | (1 << FPSCR_VXSQRT) | \
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(1 << FPSCR_VXCVI)))
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/* exception summary */
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#define fpscr_ex (((env->fpscr) >> FPSCR_XX) & 0x1F)
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/* enabled exception summary */
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#define fpscr_eex (((env->fpscr) >> FPSCR_XX) & ((env->fpscr) >> FPSCR_XE) & \
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0x1F)
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/*****************************************************************************/
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/* The whole PowerPC CPU context */
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#if defined(TARGET_PPC64H)
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#define NB_MMU_MODES 3
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#else
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#define NB_MMU_MODES 2
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#endif
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/*****************************************************************************/
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/* The whole PowerPC CPU context */
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struct CPUPPCState {
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/* First are the most commonly used resources
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* during translated code execution
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@ -482,7 +552,7 @@ struct CPUPPCState {
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/* floating point registers */
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float64 fpr[32];
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/* floating point status and control register */
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uint8_t fpscr[8];
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uint32_t fpscr;
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CPU_COMMON
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@ -2130,6 +2130,8 @@ static always_inline void powerpc_excp (CPUState *env,
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fprintf(logfile, "Ignore floating point exception\n");
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}
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#endif
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env->exception_index = POWERPC_EXCP_NONE;
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env->error_code = 0;
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return;
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}
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new_msr &= ~((target_ulong)1 << MSR_RI);
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@ -2138,12 +2140,6 @@ static always_inline void powerpc_excp (CPUState *env,
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new_msr |= (target_ulong)1 << MSR_HV;
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#endif
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msr |= 0x00100000;
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/* Set FX */
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env->fpscr[7] |= 0x8;
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/* Finally, update FEX */
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if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
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((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
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env->fpscr[7] |= 0x4;
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if (msr_fe0 != msr_fe1) {
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msr |= 0x00010000;
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goto store_current;
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@ -2199,8 +2195,11 @@ static always_inline void powerpc_excp (CPUState *env,
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/* XXX: To be removed */
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if (env->gpr[3] == 0x113724fa && env->gpr[4] == 0x77810f9b &&
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env->osi_call) {
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if (env->osi_call(env) != 0)
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if (env->osi_call(env) != 0) {
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env->exception_index = POWERPC_EXCP_NONE;
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env->error_code = 0;
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return;
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}
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}
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if (loglevel & CPU_LOG_INT) {
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dump_syscall(env);
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130
target-ppc/op.c
130
target-ppc/op.c
@ -135,13 +135,6 @@ void OPPROTO op_set_Rc0 (void)
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RETURN();
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}
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/* Set Rc1 (for floating point arithmetic) */
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void OPPROTO op_set_Rc1 (void)
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{
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env->crf[1] = env->fpscr[7];
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RETURN();
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}
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/* Constants load */
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void OPPROTO op_reset_T0 (void)
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{
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@ -552,9 +545,102 @@ void OPPROTO op_store_dbatl (void)
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#endif /* !defined(CONFIG_USER_ONLY) */
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/* FPSCR */
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void OPPROTO op_load_fpscr (void)
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#ifdef CONFIG_SOFTFLOAT
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void OPPROTO op_reset_fpstatus (void)
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{
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do_load_fpscr();
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env->fp_status.float_exception_flags = 0;
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RETURN();
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}
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#endif
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void OPPROTO op_compute_fprf (void)
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{
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do_compute_fprf(PARAM1);
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RETURN();
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}
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#ifdef CONFIG_SOFTFLOAT
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void OPPROTO op_float_check_status (void)
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{
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do_float_check_status();
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RETURN();
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}
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#else
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void OPPROTO op_float_check_status (void)
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{
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if (env->exception_index == POWERPC_EXCP_PROGRAM &&
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(env->error_code & POWERPC_EXCP_FP)) {
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/* Differred floating-point exception after target FPR update */
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if (msr_fe0 != 0 || msr_fe1 != 0)
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do_raise_exception_err(env->exception_index, env->error_code);
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}
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RETURN();
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}
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#endif
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#if defined(WORDS_BIGENDIAN)
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#define WORD0 0
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#define WORD1 1
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#else
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#define WORD0 1
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#define WORD1 0
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#endif
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void OPPROTO op_load_fpscr_FT0 (void)
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{
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/* The 32 MSB of the target fpr are undefined.
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* They'll be zero...
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*/
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union {
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float64 d;
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struct {
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uint32_t u[2];
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} s;
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} u;
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u.s.u[WORD0] = 0;
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u.s.u[WORD1] = env->fpscr;
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FT0 = u.d;
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RETURN();
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}
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void OPPROTO op_set_FT0 (void)
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{
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union {
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float64 d;
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struct {
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uint32_t u[2];
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} s;
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} u;
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u.s.u[WORD0] = 0;
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u.s.u[WORD1] = PARAM1;
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FT0 = u.d;
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RETURN();
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}
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#undef WORD0
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#undef WORD1
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void OPPROTO op_load_fpscr_T0 (void)
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{
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T0 = (env->fpscr >> PARAM1) & 0xF;
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RETURN();
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}
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void OPPROTO op_load_fpcc (void)
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{
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T0 = fpscr_fpcc;
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RETURN();
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}
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void OPPROTO op_fpscr_resetbit (void)
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{
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env->fpscr &= PARAM1;
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RETURN();
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}
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void OPPROTO op_fpscr_setbit (void)
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{
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do_fpscr_setbit(PARAM1);
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RETURN();
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}
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@ -564,12 +650,6 @@ void OPPROTO op_store_fpscr (void)
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RETURN();
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}
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void OPPROTO op_reset_scrfx (void)
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{
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env->fpscr[7] &= ~0x8;
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RETURN();
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}
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/* crf operations */
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void OPPROTO op_getbit_T0 (void)
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{
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@ -1702,28 +1782,44 @@ void OPPROTO op_srli_T1_64 (void)
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/* fadd - fadd. */
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void OPPROTO op_fadd (void)
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{
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#if USE_PRECISE_EMULATION
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do_fadd();
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#else
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FT0 = float64_add(FT0, FT1, &env->fp_status);
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#endif
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RETURN();
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}
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/* fsub - fsub. */
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void OPPROTO op_fsub (void)
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{
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#if USE_PRECISE_EMULATION
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do_fsub();
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#else
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FT0 = float64_sub(FT0, FT1, &env->fp_status);
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#endif
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RETURN();
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}
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/* fmul - fmul. */
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void OPPROTO op_fmul (void)
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{
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#if USE_PRECISE_EMULATION
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do_fmul();
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#else
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FT0 = float64_mul(FT0, FT1, &env->fp_status);
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#endif
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RETURN();
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}
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/* fdiv - fdiv. */
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void OPPROTO op_fdiv (void)
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{
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#if USE_PRECISE_EMULATION
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do_fdiv();
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#else
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FT0 = float64_div(FT0, FT1, &env->fp_status);
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#endif
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RETURN();
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}
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@ -1805,7 +1901,11 @@ void OPPROTO op_fnmsub (void)
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/* frsp - frsp. */
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void OPPROTO op_frsp (void)
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{
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#if USE_PRECISE_EMULATION
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do_frsp();
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#else
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FT0 = float64_to_float32(FT0, &env->fp_status);
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#endif
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RETURN();
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}
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File diff suppressed because it is too large
Load Diff
@ -60,7 +60,7 @@ void do_store_cr (uint32_t mask);
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#if defined(TARGET_PPC64)
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void do_store_pri (int prio);
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#endif
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void do_load_fpscr (void);
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void do_fpscr_setbit (int bit);
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void do_store_fpscr (uint32_t mask);
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target_ulong ppc_load_dump_spr (int sprn);
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void ppc_store_dump_spr (int sprn, target_ulong val);
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@ -94,6 +94,16 @@ void do_popcntb_64 (void);
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#endif
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/* Floating-point arithmetic helpers */
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void do_compute_fprf (int set_class);
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#ifdef CONFIG_SOFTFLOAT
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void do_float_check_status (void);
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#endif
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#if USE_PRECISE_EMULATION
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void do_fadd (void);
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void do_fsub (void);
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void do_fmul (void);
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void do_fdiv (void);
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#endif
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void do_fsqrt (void);
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void do_fre (void);
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void do_fres (void);
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@ -105,6 +115,9 @@ void do_fmsub (void);
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#endif
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void do_fnmadd (void);
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void do_fnmsub (void);
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#if USE_PRECISE_EMULATION
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void do_frsp (void);
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#endif
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void do_fctiw (void);
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void do_fctiwz (void);
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#if defined(TARGET_PPC64)
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||||
|
@ -165,39 +165,6 @@ void OPPROTO glue(op_store_T1_crf_crf, REG) (void)
|
||||
RETURN();
|
||||
}
|
||||
|
||||
/* Floating point condition and status register moves */
|
||||
void OPPROTO glue(op_load_fpscr_T0_fpscr, REG) (void)
|
||||
{
|
||||
T0 = env->fpscr[REG];
|
||||
RETURN();
|
||||
}
|
||||
|
||||
#if REG == 0
|
||||
void OPPROTO glue(op_store_T0_fpscr_fpscr, REG) (void)
|
||||
{
|
||||
env->fpscr[REG] = (env->fpscr[REG] & 0x9) | (T0 & ~0x9);
|
||||
RETURN();
|
||||
}
|
||||
|
||||
void OPPROTO glue(op_clear_fpscr_fpscr, REG) (void)
|
||||
{
|
||||
env->fpscr[REG] = (env->fpscr[REG] & 0x9);
|
||||
RETURN();
|
||||
}
|
||||
#else
|
||||
void OPPROTO glue(op_store_T0_fpscr_fpscr, REG) (void)
|
||||
{
|
||||
env->fpscr[REG] = T0;
|
||||
RETURN();
|
||||
}
|
||||
|
||||
void OPPROTO glue(op_clear_fpscr_fpscr, REG) (void)
|
||||
{
|
||||
env->fpscr[REG] = 0x0;
|
||||
RETURN();
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* REG <= 7 */
|
||||
|
||||
/* floating point registers moves */
|
||||
|
@ -32,6 +32,7 @@
|
||||
//#define PPC_DEBUG_DISAS
|
||||
//#define DEBUG_MEMORY_ACCESSES
|
||||
//#define DO_PPC_STATISTICS
|
||||
//#define OPTIMIZE_FPRF_UPDATE
|
||||
|
||||
/*****************************************************************************/
|
||||
/* Code translation helpers */
|
||||
@ -50,6 +51,10 @@ enum {
|
||||
|
||||
static uint16_t *gen_opc_ptr;
|
||||
static uint32_t *gen_opparam_ptr;
|
||||
#if defined(OPTIMIZE_FPRF_UPDATE)
|
||||
static uint16_t *gen_fprf_buf[OPC_BUF_SIZE];
|
||||
static uint16_t **gen_fprf_ptr;
|
||||
#endif
|
||||
|
||||
#include "gen-op.h"
|
||||
|
||||
@ -117,16 +122,6 @@ GEN8(gen_op_load_crf_T1, gen_op_load_crf_T1_crf);
|
||||
GEN8(gen_op_store_T0_crf, gen_op_store_T0_crf_crf);
|
||||
GEN8(gen_op_store_T1_crf, gen_op_store_T1_crf_crf);
|
||||
|
||||
/* Floating point condition and status register moves */
|
||||
GEN8(gen_op_load_fpscr_T0, gen_op_load_fpscr_T0_fpscr);
|
||||
GEN8(gen_op_store_T0_fpscr, gen_op_store_T0_fpscr_fpscr);
|
||||
GEN8(gen_op_clear_fpscr, gen_op_clear_fpscr_fpscr);
|
||||
static always_inline void gen_op_store_T0_fpscri (int n, uint8_t param)
|
||||
{
|
||||
gen_op_set_T0(param);
|
||||
gen_op_store_T0_fpscr(n);
|
||||
}
|
||||
|
||||
/* General purpose registers moves */
|
||||
GEN32(gen_op_load_gpr_T0, gen_op_load_gpr_T0_gpr);
|
||||
GEN32(gen_op_load_gpr_T1, gen_op_load_gpr_T1_gpr);
|
||||
@ -199,6 +194,44 @@ static always_inline void gen_set_Rc0 (DisasContext *ctx)
|
||||
gen_op_set_Rc0();
|
||||
}
|
||||
|
||||
static always_inline void gen_reset_fpstatus (void)
|
||||
{
|
||||
#ifdef CONFIG_SOFTFLOAT
|
||||
gen_op_reset_fpstatus();
|
||||
#endif
|
||||
}
|
||||
|
||||
static always_inline void gen_compute_fprf (int set_fprf, int set_rc)
|
||||
{
|
||||
if (set_fprf != 0) {
|
||||
/* This case might be optimized later */
|
||||
#if defined(OPTIMIZE_FPRF_UPDATE)
|
||||
*gen_fprf_ptr++ = gen_opc_ptr;
|
||||
#endif
|
||||
gen_op_compute_fprf(1);
|
||||
if (unlikely(set_rc))
|
||||
gen_op_store_T0_crf(1);
|
||||
gen_op_float_check_status();
|
||||
} else if (unlikely(set_rc)) {
|
||||
/* We always need to compute fpcc */
|
||||
gen_op_compute_fprf(0);
|
||||
gen_op_store_T0_crf(1);
|
||||
if (set_fprf)
|
||||
gen_op_float_check_status();
|
||||
}
|
||||
}
|
||||
|
||||
static always_inline void gen_optimize_fprf (void)
|
||||
{
|
||||
#if defined(OPTIMIZE_FPRF_UPDATE)
|
||||
uint16_t **ptr;
|
||||
|
||||
for (ptr = gen_fprf_buf; ptr != (gen_fprf_ptr - 1); ptr++)
|
||||
*ptr = INDEX_op_nop1;
|
||||
gen_fprf_ptr = gen_fprf_buf;
|
||||
#endif
|
||||
}
|
||||
|
||||
static always_inline void gen_update_nip (DisasContext *ctx, target_ulong nip)
|
||||
{
|
||||
#if defined(TARGET_PPC64)
|
||||
@ -497,6 +530,8 @@ enum {
|
||||
PPC_CACHE_DCBZ = 0x0000400000000000ULL,
|
||||
/* dcbz instruction with tunable cache line size */
|
||||
PPC_CACHE_DCBZT = 0x0000800000000000ULL,
|
||||
/* frsqrtes extension */
|
||||
PPC_FLOAT_FRSQRTES = 0x0001000000000000ULL,
|
||||
};
|
||||
|
||||
/*****************************************************************************/
|
||||
@ -1656,124 +1691,127 @@ __GEN_LOGICAL2(srd, 0x1B, 0x10, PPC_64B);
|
||||
#endif
|
||||
|
||||
/*** Floating-Point arithmetic ***/
|
||||
#define _GEN_FLOAT_ACB(name, op, op1, op2, isfloat, type) \
|
||||
#define _GEN_FLOAT_ACB(name, op, op1, op2, isfloat, set_fprf, type) \
|
||||
GEN_HANDLER(f##name, op1, op2, 0xFF, 0x00000000, type) \
|
||||
{ \
|
||||
if (unlikely(!ctx->fpu_enabled)) { \
|
||||
GEN_EXCP_NO_FP(ctx); \
|
||||
return; \
|
||||
} \
|
||||
gen_op_reset_scrfx(); \
|
||||
gen_op_load_fpr_FT0(rA(ctx->opcode)); \
|
||||
gen_op_load_fpr_FT1(rC(ctx->opcode)); \
|
||||
gen_op_load_fpr_FT2(rB(ctx->opcode)); \
|
||||
gen_reset_fpstatus(); \
|
||||
gen_op_f##op(); \
|
||||
if (isfloat) { \
|
||||
gen_op_frsp(); \
|
||||
} \
|
||||
gen_op_store_FT0_fpr(rD(ctx->opcode)); \
|
||||
if (unlikely(Rc(ctx->opcode) != 0)) \
|
||||
gen_op_set_Rc1(); \
|
||||
gen_compute_fprf(set_fprf, Rc(ctx->opcode) != 0); \
|
||||
}
|
||||
|
||||
#define GEN_FLOAT_ACB(name, op2, type) \
|
||||
_GEN_FLOAT_ACB(name, name, 0x3F, op2, 0, type); \
|
||||
_GEN_FLOAT_ACB(name##s, name, 0x3B, op2, 1, type);
|
||||
#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) \
|
||||
GEN_HANDLER(f##name, op1, op2, 0xFF, inval, PPC_FLOAT) \
|
||||
#define _GEN_FLOAT_AB(name, op, op1, op2, inval, isfloat, set_fprf, type) \
|
||||
GEN_HANDLER(f##name, op1, op2, 0xFF, inval, type) \
|
||||
{ \
|
||||
if (unlikely(!ctx->fpu_enabled)) { \
|
||||
GEN_EXCP_NO_FP(ctx); \
|
||||
return; \
|
||||
} \
|
||||
gen_op_reset_scrfx(); \
|
||||
gen_op_load_fpr_FT0(rA(ctx->opcode)); \
|
||||
gen_op_load_fpr_FT1(rB(ctx->opcode)); \
|
||||
gen_reset_fpstatus(); \
|
||||
gen_op_f##op(); \
|
||||
if (isfloat) { \
|
||||
gen_op_frsp(); \
|
||||
} \
|
||||
gen_op_store_FT0_fpr(rD(ctx->opcode)); \
|
||||
if (unlikely(Rc(ctx->opcode) != 0)) \
|
||||
gen_op_set_Rc1(); \
|
||||
gen_compute_fprf(set_fprf, Rc(ctx->opcode) != 0); \
|
||||
}
|
||||
#define GEN_FLOAT_AB(name, op2, inval) \
|
||||
_GEN_FLOAT_AB(name, name, 0x3F, op2, inval, 0); \
|
||||
_GEN_FLOAT_AB(name##s, name, 0x3B, op2, inval, 1);
|
||||
#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) \
|
||||
GEN_HANDLER(f##name, op1, op2, 0xFF, inval, PPC_FLOAT) \
|
||||
#define _GEN_FLOAT_AC(name, op, op1, op2, inval, isfloat, set_fprf, type) \
|
||||
GEN_HANDLER(f##name, op1, op2, 0xFF, inval, type) \
|
||||
{ \
|
||||
if (unlikely(!ctx->fpu_enabled)) { \
|
||||
GEN_EXCP_NO_FP(ctx); \
|
||||
return; \
|
||||
} \
|
||||
gen_op_reset_scrfx(); \
|
||||
gen_op_load_fpr_FT0(rA(ctx->opcode)); \
|
||||
gen_op_load_fpr_FT1(rC(ctx->opcode)); \
|
||||
gen_reset_fpstatus(); \
|
||||
gen_op_f##op(); \
|
||||
if (isfloat) { \
|
||||
gen_op_frsp(); \
|
||||
} \
|
||||
gen_op_store_FT0_fpr(rD(ctx->opcode)); \
|
||||
if (unlikely(Rc(ctx->opcode) != 0)) \
|
||||
gen_op_set_Rc1(); \
|
||||
gen_compute_fprf(set_fprf, Rc(ctx->opcode) != 0); \
|
||||
}
|
||||
#define GEN_FLOAT_AC(name, op2, inval) \
|
||||
_GEN_FLOAT_AC(name, name, 0x3F, op2, inval, 0); \
|
||||
_GEN_FLOAT_AC(name##s, name, 0x3B, op2, inval, 1);
|
||||
#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, type) \
|
||||
#define GEN_FLOAT_B(name, op2, op3, set_fprf, type) \
|
||||
GEN_HANDLER(f##name, 0x3F, op2, op3, 0x001F0000, type) \
|
||||
{ \
|
||||
if (unlikely(!ctx->fpu_enabled)) { \
|
||||
GEN_EXCP_NO_FP(ctx); \
|
||||
return; \
|
||||
} \
|
||||
gen_op_reset_scrfx(); \
|
||||
gen_op_load_fpr_FT0(rB(ctx->opcode)); \
|
||||
gen_reset_fpstatus(); \
|
||||
gen_op_f##name(); \
|
||||
gen_op_store_FT0_fpr(rD(ctx->opcode)); \
|
||||
if (unlikely(Rc(ctx->opcode) != 0)) \
|
||||
gen_op_set_Rc1(); \
|
||||
gen_compute_fprf(set_fprf, Rc(ctx->opcode) != 0); \
|
||||
}
|
||||
|
||||
#define GEN_FLOAT_BS(name, op1, op2, type) \
|
||||
#define GEN_FLOAT_BS(name, op1, op2, set_fprf, type) \
|
||||
GEN_HANDLER(f##name, op1, op2, 0xFF, 0x001F07C0, type) \
|
||||
{ \
|
||||
if (unlikely(!ctx->fpu_enabled)) { \
|
||||
GEN_EXCP_NO_FP(ctx); \
|
||||
return; \
|
||||
} \
|
||||
gen_op_reset_scrfx(); \
|
||||
gen_op_load_fpr_FT0(rB(ctx->opcode)); \
|
||||
gen_reset_fpstatus(); \
|
||||
gen_op_f##name(); \
|
||||
gen_op_store_FT0_fpr(rD(ctx->opcode)); \
|
||||
if (unlikely(Rc(ctx->opcode) != 0)) \
|
||||
gen_op_set_Rc1(); \
|
||||
gen_compute_fprf(set_fprf, Rc(ctx->opcode) != 0); \
|
||||
}
|
||||
|
||||
/* fadd - fadds */
|
||||
GEN_FLOAT_AB(add, 0x15, 0x000007C0);
|
||||
GEN_FLOAT_AB(add, 0x15, 0x000007C0, 1, PPC_FLOAT);
|
||||
/* fdiv - fdivs */
|
||||
GEN_FLOAT_AB(div, 0x12, 0x000007C0);
|
||||
GEN_FLOAT_AB(div, 0x12, 0x000007C0, 1, PPC_FLOAT);
|
||||
/* fmul - fmuls */
|
||||
GEN_FLOAT_AC(mul, 0x19, 0x0000F800);
|
||||
GEN_FLOAT_AC(mul, 0x19, 0x0000F800, 1, PPC_FLOAT);
|
||||
|
||||
/* fre */
|
||||
GEN_FLOAT_BS(re, 0x3F, 0x18, PPC_FLOAT_EXT);
|
||||
GEN_FLOAT_BS(re, 0x3F, 0x18, 1, PPC_FLOAT_EXT);
|
||||
|
||||
/* fres */
|
||||
GEN_FLOAT_BS(res, 0x3B, 0x18, PPC_FLOAT_FRES);
|
||||
GEN_FLOAT_BS(res, 0x3B, 0x18, 1, PPC_FLOAT_FRES);
|
||||
|
||||
/* frsqrte */
|
||||
GEN_FLOAT_BS(rsqrte, 0x3F, 0x1A, PPC_FLOAT_FRSQRTE);
|
||||
GEN_FLOAT_BS(rsqrte, 0x3F, 0x1A, 1, PPC_FLOAT_FRSQRTE);
|
||||
|
||||
/* frsqrtes */
|
||||
static always_inline void gen_op_frsqrtes (void)
|
||||
{
|
||||
gen_op_frsqrte();
|
||||
gen_op_frsp();
|
||||
}
|
||||
GEN_FLOAT_BS(rsqrtes, 0x3F, 0x1A, 1, PPC_FLOAT_FRSQRTES);
|
||||
|
||||
/* fsel */
|
||||
_GEN_FLOAT_ACB(sel, sel, 0x3F, 0x17, 0, PPC_FLOAT_FSEL);
|
||||
_GEN_FLOAT_ACB(sel, sel, 0x3F, 0x17, 0, 0, PPC_FLOAT_FSEL);
|
||||
/* fsub - fsubs */
|
||||
GEN_FLOAT_AB(sub, 0x14, 0x000007C0);
|
||||
GEN_FLOAT_AB(sub, 0x14, 0x000007C0, 1, PPC_FLOAT);
|
||||
/* Optional: */
|
||||
/* fsqrt */
|
||||
GEN_HANDLER(fsqrt, 0x3F, 0x16, 0xFF, 0x001F07C0, PPC_FLOAT_FSQRT)
|
||||
@ -1782,12 +1820,11 @@ GEN_HANDLER(fsqrt, 0x3F, 0x16, 0xFF, 0x001F07C0, PPC_FLOAT_FSQRT)
|
||||
GEN_EXCP_NO_FP(ctx);
|
||||
return;
|
||||
}
|
||||
gen_op_reset_scrfx();
|
||||
gen_op_load_fpr_FT0(rB(ctx->opcode));
|
||||
gen_reset_fpstatus();
|
||||
gen_op_fsqrt();
|
||||
gen_op_store_FT0_fpr(rD(ctx->opcode));
|
||||
if (unlikely(Rc(ctx->opcode) != 0))
|
||||
gen_op_set_Rc1();
|
||||
gen_compute_fprf(1, Rc(ctx->opcode) != 0);
|
||||
}
|
||||
|
||||
GEN_HANDLER(fsqrts, 0x3B, 0x16, 0xFF, 0x001F07C0, PPC_FLOAT_FSQRT)
|
||||
@ -1796,49 +1833,48 @@ GEN_HANDLER(fsqrts, 0x3B, 0x16, 0xFF, 0x001F07C0, PPC_FLOAT_FSQRT)
|
||||
GEN_EXCP_NO_FP(ctx);
|
||||
return;
|
||||
}
|
||||
gen_op_reset_scrfx();
|
||||
gen_op_load_fpr_FT0(rB(ctx->opcode));
|
||||
gen_reset_fpstatus();
|
||||
gen_op_fsqrt();
|
||||
gen_op_frsp();
|
||||
gen_op_store_FT0_fpr(rD(ctx->opcode));
|
||||
if (unlikely(Rc(ctx->opcode) != 0))
|
||||
gen_op_set_Rc1();
|
||||
gen_compute_fprf(1, Rc(ctx->opcode) != 0);
|
||||
}
|
||||
|
||||
/*** Floating-Point multiply-and-add ***/
|
||||
/* fmadd - fmadds */
|
||||
GEN_FLOAT_ACB(madd, 0x1D, PPC_FLOAT);
|
||||
GEN_FLOAT_ACB(madd, 0x1D, 1, PPC_FLOAT);
|
||||
/* fmsub - fmsubs */
|
||||
GEN_FLOAT_ACB(msub, 0x1C, PPC_FLOAT);
|
||||
GEN_FLOAT_ACB(msub, 0x1C, 1, PPC_FLOAT);
|
||||
/* fnmadd - fnmadds */
|
||||
GEN_FLOAT_ACB(nmadd, 0x1F, PPC_FLOAT);
|
||||
GEN_FLOAT_ACB(nmadd, 0x1F, 1, PPC_FLOAT);
|
||||
/* fnmsub - fnmsubs */
|
||||
GEN_FLOAT_ACB(nmsub, 0x1E, PPC_FLOAT);
|
||||
GEN_FLOAT_ACB(nmsub, 0x1E, 1, PPC_FLOAT);
|
||||
|
||||
/*** Floating-Point round & convert ***/
|
||||
/* fctiw */
|
||||
GEN_FLOAT_B(ctiw, 0x0E, 0x00, PPC_FLOAT);
|
||||
GEN_FLOAT_B(ctiw, 0x0E, 0x00, 0, PPC_FLOAT);
|
||||
/* fctiwz */
|
||||
GEN_FLOAT_B(ctiwz, 0x0F, 0x00, PPC_FLOAT);
|
||||
GEN_FLOAT_B(ctiwz, 0x0F, 0x00, 0, PPC_FLOAT);
|
||||
/* frsp */
|
||||
GEN_FLOAT_B(rsp, 0x0C, 0x00, PPC_FLOAT);
|
||||
GEN_FLOAT_B(rsp, 0x0C, 0x00, 1, PPC_FLOAT);
|
||||
#if defined(TARGET_PPC64)
|
||||
/* fcfid */
|
||||
GEN_FLOAT_B(cfid, 0x0E, 0x1A, PPC_64B);
|
||||
GEN_FLOAT_B(cfid, 0x0E, 0x1A, 1, PPC_64B);
|
||||
/* fctid */
|
||||
GEN_FLOAT_B(ctid, 0x0E, 0x19, PPC_64B);
|
||||
GEN_FLOAT_B(ctid, 0x0E, 0x19, 0, PPC_64B);
|
||||
/* fctidz */
|
||||
GEN_FLOAT_B(ctidz, 0x0F, 0x19, PPC_64B);
|
||||
GEN_FLOAT_B(ctidz, 0x0F, 0x19, 0, PPC_64B);
|
||||
#endif
|
||||
|
||||
/* frin */
|
||||
GEN_FLOAT_B(rin, 0x08, 0x0C, PPC_FLOAT_EXT);
|
||||
GEN_FLOAT_B(rin, 0x08, 0x0C, 1, PPC_FLOAT_EXT);
|
||||
/* friz */
|
||||
GEN_FLOAT_B(riz, 0x08, 0x0D, PPC_FLOAT_EXT);
|
||||
GEN_FLOAT_B(riz, 0x08, 0x0D, 1, PPC_FLOAT_EXT);
|
||||
/* frip */
|
||||
GEN_FLOAT_B(rip, 0x08, 0x0E, PPC_FLOAT_EXT);
|
||||
GEN_FLOAT_B(rip, 0x08, 0x0E, 1, PPC_FLOAT_EXT);
|
||||
/* frim */
|
||||
GEN_FLOAT_B(rim, 0x08, 0x0F, PPC_FLOAT_EXT);
|
||||
GEN_FLOAT_B(rim, 0x08, 0x0F, 1, PPC_FLOAT_EXT);
|
||||
|
||||
/*** Floating-Point compare ***/
|
||||
/* fcmpo */
|
||||
@ -1848,11 +1884,12 @@ GEN_HANDLER(fcmpo, 0x3F, 0x00, 0x01, 0x00600001, PPC_FLOAT)
|
||||
GEN_EXCP_NO_FP(ctx);
|
||||
return;
|
||||
}
|
||||
gen_op_reset_scrfx();
|
||||
gen_op_load_fpr_FT0(rA(ctx->opcode));
|
||||
gen_op_load_fpr_FT1(rB(ctx->opcode));
|
||||
gen_reset_fpstatus();
|
||||
gen_op_fcmpo();
|
||||
gen_op_store_T0_crf(crfD(ctx->opcode));
|
||||
gen_op_float_check_status();
|
||||
}
|
||||
|
||||
/* fcmpu */
|
||||
@ -1862,47 +1899,54 @@ GEN_HANDLER(fcmpu, 0x3F, 0x00, 0x00, 0x00600001, PPC_FLOAT)
|
||||
GEN_EXCP_NO_FP(ctx);
|
||||
return;
|
||||
}
|
||||
gen_op_reset_scrfx();
|
||||
gen_op_load_fpr_FT0(rA(ctx->opcode));
|
||||
gen_op_load_fpr_FT1(rB(ctx->opcode));
|
||||
gen_reset_fpstatus();
|
||||
gen_op_fcmpu();
|
||||
gen_op_store_T0_crf(crfD(ctx->opcode));
|
||||
gen_op_float_check_status();
|
||||
}
|
||||
|
||||
/*** Floating-point move ***/
|
||||
/* fabs */
|
||||
GEN_FLOAT_B(abs, 0x08, 0x08, PPC_FLOAT);
|
||||
/* XXX: beware that fabs never checks for NaNs nor update FPSCR */
|
||||
GEN_FLOAT_B(abs, 0x08, 0x08, 0, PPC_FLOAT);
|
||||
|
||||
/* fmr - fmr. */
|
||||
/* XXX: beware that fmr never checks for NaNs nor update FPSCR */
|
||||
GEN_HANDLER(fmr, 0x3F, 0x08, 0x02, 0x001F0000, PPC_FLOAT)
|
||||
{
|
||||
if (unlikely(!ctx->fpu_enabled)) {
|
||||
GEN_EXCP_NO_FP(ctx);
|
||||
return;
|
||||
}
|
||||
gen_op_reset_scrfx();
|
||||
gen_op_load_fpr_FT0(rB(ctx->opcode));
|
||||
gen_op_store_FT0_fpr(rD(ctx->opcode));
|
||||
if (unlikely(Rc(ctx->opcode) != 0))
|
||||
gen_op_set_Rc1();
|
||||
gen_compute_fprf(0, Rc(ctx->opcode) != 0);
|
||||
}
|
||||
|
||||
/* fnabs */
|
||||
GEN_FLOAT_B(nabs, 0x08, 0x04, PPC_FLOAT);
|
||||
/* XXX: beware that fnabs never checks for NaNs nor update FPSCR */
|
||||
GEN_FLOAT_B(nabs, 0x08, 0x04, 0, PPC_FLOAT);
|
||||
/* fneg */
|
||||
GEN_FLOAT_B(neg, 0x08, 0x01, PPC_FLOAT);
|
||||
/* XXX: beware that fneg never checks for NaNs nor update FPSCR */
|
||||
GEN_FLOAT_B(neg, 0x08, 0x01, 0, PPC_FLOAT);
|
||||
|
||||
/*** Floating-Point status & ctrl register ***/
|
||||
/* mcrfs */
|
||||
GEN_HANDLER(mcrfs, 0x3F, 0x00, 0x02, 0x0063F801, PPC_FLOAT)
|
||||
{
|
||||
int bfa;
|
||||
|
||||
if (unlikely(!ctx->fpu_enabled)) {
|
||||
GEN_EXCP_NO_FP(ctx);
|
||||
return;
|
||||
}
|
||||
gen_op_load_fpscr_T0(crfS(ctx->opcode));
|
||||
gen_optimize_fprf();
|
||||
bfa = 4 * (7 - crfS(ctx->opcode));
|
||||
gen_op_load_fpscr_T0(bfa);
|
||||
gen_op_store_T0_crf(crfD(ctx->opcode));
|
||||
gen_op_clear_fpscr(crfS(ctx->opcode));
|
||||
gen_op_fpscr_resetbit(~(0xF << bfa));
|
||||
}
|
||||
|
||||
/* mffs */
|
||||
@ -1912,10 +1956,11 @@ GEN_HANDLER(mffs, 0x3F, 0x07, 0x12, 0x001FF800, PPC_FLOAT)
|
||||
GEN_EXCP_NO_FP(ctx);
|
||||
return;
|
||||
}
|
||||
gen_op_load_fpscr();
|
||||
gen_optimize_fprf();
|
||||
gen_reset_fpstatus();
|
||||
gen_op_load_fpscr_FT0();
|
||||
gen_op_store_FT0_fpr(rD(ctx->opcode));
|
||||
if (unlikely(Rc(ctx->opcode) != 0))
|
||||
gen_op_set_Rc1();
|
||||
gen_compute_fprf(0, Rc(ctx->opcode) != 0);
|
||||
}
|
||||
|
||||
/* mtfsb0 */
|
||||
@ -1927,12 +1972,15 @@ GEN_HANDLER(mtfsb0, 0x3F, 0x06, 0x02, 0x001FF800, PPC_FLOAT)
|
||||
GEN_EXCP_NO_FP(ctx);
|
||||
return;
|
||||
}
|
||||
crb = crbD(ctx->opcode) >> 2;
|
||||
gen_op_load_fpscr_T0(crb);
|
||||
gen_op_andi_T0(~(1 << (crbD(ctx->opcode) & 0x03)));
|
||||
gen_op_store_T0_fpscr(crb);
|
||||
if (unlikely(Rc(ctx->opcode) != 0))
|
||||
gen_op_set_Rc1();
|
||||
crb = 32 - (crbD(ctx->opcode) >> 2);
|
||||
gen_optimize_fprf();
|
||||
gen_reset_fpstatus();
|
||||
if (likely(crb != 30 && crb != 29))
|
||||
gen_op_fpscr_resetbit(~(1 << crb));
|
||||
if (unlikely(Rc(ctx->opcode) != 0)) {
|
||||
gen_op_load_fpcc();
|
||||
gen_op_set_Rc0();
|
||||
}
|
||||
}
|
||||
|
||||
/* mtfsb1 */
|
||||
@ -1944,12 +1992,18 @@ GEN_HANDLER(mtfsb1, 0x3F, 0x06, 0x01, 0x001FF800, PPC_FLOAT)
|
||||
GEN_EXCP_NO_FP(ctx);
|
||||
return;
|
||||
}
|
||||
crb = crbD(ctx->opcode) >> 2;
|
||||
gen_op_load_fpscr_T0(crb);
|
||||
gen_op_ori(1 << (crbD(ctx->opcode) & 0x03));
|
||||
gen_op_store_T0_fpscr(crb);
|
||||
if (unlikely(Rc(ctx->opcode) != 0))
|
||||
gen_op_set_Rc1();
|
||||
crb = 32 - (crbD(ctx->opcode) >> 2);
|
||||
gen_optimize_fprf();
|
||||
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))
|
||||
gen_op_fpscr_setbit(crb);
|
||||
if (unlikely(Rc(ctx->opcode) != 0)) {
|
||||
gen_op_load_fpcc();
|
||||
gen_op_set_Rc0();
|
||||
}
|
||||
/* We can raise a differed exception */
|
||||
gen_op_float_check_status();
|
||||
}
|
||||
|
||||
/* mtfsf */
|
||||
@ -1959,22 +2013,39 @@ GEN_HANDLER(mtfsf, 0x3F, 0x07, 0x16, 0x02010000, PPC_FLOAT)
|
||||
GEN_EXCP_NO_FP(ctx);
|
||||
return;
|
||||
}
|
||||
gen_optimize_fprf();
|
||||
gen_op_load_fpr_FT0(rB(ctx->opcode));
|
||||
gen_reset_fpstatus();
|
||||
gen_op_store_fpscr(FM(ctx->opcode));
|
||||
if (unlikely(Rc(ctx->opcode) != 0))
|
||||
gen_op_set_Rc1();
|
||||
if (unlikely(Rc(ctx->opcode) != 0)) {
|
||||
gen_op_load_fpcc();
|
||||
gen_op_set_Rc0();
|
||||
}
|
||||
/* We can raise a differed exception */
|
||||
gen_op_float_check_status();
|
||||
}
|
||||
|
||||
/* mtfsfi */
|
||||
GEN_HANDLER(mtfsfi, 0x3F, 0x06, 0x04, 0x006f0800, PPC_FLOAT)
|
||||
{
|
||||
int bf, sh;
|
||||
|
||||
if (unlikely(!ctx->fpu_enabled)) {
|
||||
GEN_EXCP_NO_FP(ctx);
|
||||
return;
|
||||
}
|
||||
gen_op_store_T0_fpscri(crbD(ctx->opcode) >> 2, FPIMM(ctx->opcode));
|
||||
if (unlikely(Rc(ctx->opcode) != 0))
|
||||
gen_op_set_Rc1();
|
||||
bf = crbD(ctx->opcode) >> 2;
|
||||
sh = 7 - bf;
|
||||
gen_optimize_fprf();
|
||||
gen_op_set_FT0(FPIMM(ctx->opcode) << (4 * sh));
|
||||
gen_reset_fpstatus();
|
||||
gen_op_store_fpscr(1 << sh);
|
||||
if (unlikely(Rc(ctx->opcode) != 0)) {
|
||||
gen_op_load_fpcc();
|
||||
gen_op_set_Rc0();
|
||||
}
|
||||
/* We can raise a differed exception */
|
||||
gen_op_float_check_status();
|
||||
}
|
||||
|
||||
/*** Addressing modes ***/
|
||||
@ -6717,6 +6788,9 @@ static always_inline int gen_intermediate_code_internal (CPUState *env,
|
||||
gen_opc_ptr = gen_opc_buf;
|
||||
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
|
||||
gen_opparam_ptr = gen_opparam_buf;
|
||||
#if defined(OPTIMIZE_FPRF_UPDATE)
|
||||
gen_fprf_ptr = gen_fprf_buf;
|
||||
#endif
|
||||
nb_gen_labels = 0;
|
||||
ctx.nip = pc_start;
|
||||
ctx.tb = tb;
|
||||
|
Loading…
Reference in New Issue
Block a user