target-ppc: Add VSX ISA2.06 xrsqrte Instructions
This patch adds the VSX floating point reciprocal square root estimate instructions defined by V2.06 of the PowerPC ISA: xsrsqrtedp, xvrsqrtedp, xvrsqrtesp. Signed-off-by: Tom Musta <tommusta@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Tom Musta
Alexander Graf
parent
d32404fe42
commit
d3f9df8fb8
@ -1983,3 +1983,48 @@ void helper_##op(CPUPPCState *env, uint32_t opcode) \
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VSX_SQRT(xssqrtdp, 1, float64, f64, 1)
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VSX_SQRT(xvsqrtdp, 2, float64, f64, 0)
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VSX_SQRT(xvsqrtsp, 4, float32, f32, 0)
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/* VSX_RSQRTE - VSX floating point reciprocal square root estimate
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* op - instruction mnemonic
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* nels - number of elements (1, 2 or 4)
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* tp - type (float32 or float64)
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* fld - vsr_t field (f32 or f64)
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* sfprf - set FPRF
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*/
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#define VSX_RSQRTE(op, nels, tp, fld, sfprf) \
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void helper_##op(CPUPPCState *env, uint32_t opcode) \
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{ \
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ppc_vsr_t xt, xb; \
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int i; \
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\
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getVSR(xB(opcode), &xb, env); \
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getVSR(xT(opcode), &xt, env); \
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helper_reset_fpstatus(env); \
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\
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for (i = 0; i < nels; i++) { \
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float_status tstat = env->fp_status; \
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set_float_exception_flags(0, &tstat); \
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xt.fld[i] = tp##_sqrt(xb.fld[i], &tstat); \
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xt.fld[i] = tp##_div(tp##_one, xt.fld[i], &tstat); \
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env->fp_status.float_exception_flags |= tstat.float_exception_flags; \
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\
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if (unlikely(tstat.float_exception_flags & float_flag_invalid)) { \
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if (tp##_is_neg(xb.fld[i]) && !tp##_is_zero(xb.fld[i])) { \
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fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSQRT, sfprf); \
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} else if (tp##_is_signaling_nan(xb.fld[i])) { \
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fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, sfprf); \
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} \
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} \
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\
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if (sfprf) { \
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helper_compute_fprf(env, xt.fld[i], sfprf); \
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} \
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} \
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\
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putVSR(xT(opcode), &xt, env); \
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helper_float_check_status(env); \
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}
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VSX_RSQRTE(xsrsqrtedp, 1, float64, f64, 1)
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VSX_RSQRTE(xvrsqrtedp, 2, float64, f64, 0)
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VSX_RSQRTE(xvrsqrtesp, 4, float32, f32, 0)
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@ -257,6 +257,7 @@ DEF_HELPER_2(xsmuldp, void, env, i32)
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DEF_HELPER_2(xsdivdp, void, env, i32)
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DEF_HELPER_2(xsredp, void, env, i32)
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DEF_HELPER_2(xssqrtdp, void, env, i32)
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DEF_HELPER_2(xsrsqrtedp, void, env, i32)
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DEF_HELPER_2(xvadddp, void, env, i32)
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DEF_HELPER_2(xvsubdp, void, env, i32)
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@ -264,6 +265,7 @@ DEF_HELPER_2(xvmuldp, void, env, i32)
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DEF_HELPER_2(xvdivdp, void, env, i32)
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DEF_HELPER_2(xvredp, void, env, i32)
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DEF_HELPER_2(xvsqrtdp, void, env, i32)
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DEF_HELPER_2(xvrsqrtedp, void, env, i32)
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DEF_HELPER_2(xvaddsp, void, env, i32)
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DEF_HELPER_2(xvsubsp, void, env, i32)
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@ -271,6 +273,7 @@ DEF_HELPER_2(xvmulsp, void, env, i32)
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DEF_HELPER_2(xvdivsp, void, env, i32)
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DEF_HELPER_2(xvresp, void, env, i32)
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DEF_HELPER_2(xvsqrtsp, void, env, i32)
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DEF_HELPER_2(xvrsqrtesp, void, env, i32)
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DEF_HELPER_2(efscfsi, i32, env, i32)
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DEF_HELPER_2(efscfui, i32, env, i32)
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@ -7310,6 +7310,7 @@ GEN_VSX_HELPER_2(xsmuldp, 0x00, 0x06, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xsdivdp, 0x00, 0x07, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xsredp, 0x14, 0x05, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xssqrtdp, 0x16, 0x04, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xsrsqrtedp, 0x14, 0x04, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xvadddp, 0x00, 0x0C, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xvsubdp, 0x00, 0x0D, 0, PPC2_VSX)
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@ -7317,6 +7318,7 @@ GEN_VSX_HELPER_2(xvmuldp, 0x00, 0x0E, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xvdivdp, 0x00, 0x0F, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xvredp, 0x14, 0x0D, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xvsqrtdp, 0x16, 0x0C, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xvrsqrtedp, 0x14, 0x0C, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xvaddsp, 0x00, 0x08, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xvsubsp, 0x00, 0x09, 0, PPC2_VSX)
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@ -7324,6 +7326,7 @@ GEN_VSX_HELPER_2(xvmulsp, 0x00, 0x0A, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xvdivsp, 0x00, 0x0B, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xvresp, 0x14, 0x09, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xvsqrtsp, 0x16, 0x08, 0, PPC2_VSX)
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GEN_VSX_HELPER_2(xvrsqrtesp, 0x14, 0x08, 0, PPC2_VSX)
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#define VSX_LOGICAL(name, tcg_op) \
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static void glue(gen_, name)(DisasContext * ctx) \
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@ -10012,6 +10015,7 @@ GEN_XX3FORM(xsmuldp, 0x00, 0x06, PPC2_VSX),
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GEN_XX3FORM(xsdivdp, 0x00, 0x07, PPC2_VSX),
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GEN_XX2FORM(xsredp, 0x14, 0x05, PPC2_VSX),
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GEN_XX2FORM(xssqrtdp, 0x16, 0x04, PPC2_VSX),
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GEN_XX2FORM(xsrsqrtedp, 0x14, 0x04, PPC2_VSX),
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GEN_XX3FORM(xvadddp, 0x00, 0x0C, PPC2_VSX),
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GEN_XX3FORM(xvsubdp, 0x00, 0x0D, PPC2_VSX),
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@ -10019,6 +10023,7 @@ GEN_XX3FORM(xvmuldp, 0x00, 0x0E, PPC2_VSX),
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GEN_XX3FORM(xvdivdp, 0x00, 0x0F, PPC2_VSX),
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GEN_XX2FORM(xvredp, 0x14, 0x0D, PPC2_VSX),
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GEN_XX2FORM(xvsqrtdp, 0x16, 0x0C, PPC2_VSX),
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GEN_XX2FORM(xvrsqrtedp, 0x14, 0x0C, PPC2_VSX),
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GEN_XX3FORM(xvaddsp, 0x00, 0x08, PPC2_VSX),
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GEN_XX3FORM(xvsubsp, 0x00, 0x09, PPC2_VSX),
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@ -10026,6 +10031,7 @@ GEN_XX3FORM(xvmulsp, 0x00, 0x0A, PPC2_VSX),
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GEN_XX3FORM(xvdivsp, 0x00, 0x0B, PPC2_VSX),
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GEN_XX2FORM(xvresp, 0x14, 0x09, PPC2_VSX),
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GEN_XX2FORM(xvsqrtsp, 0x16, 0x08, PPC2_VSX),
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GEN_XX2FORM(xvrsqrtesp, 0x14, 0x08, PPC2_VSX),
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#undef VSX_LOGICAL
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#define VSX_LOGICAL(name, opc2, opc3, fl2) \
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