Merge remote-tracking branch 'remotes/vivier/tags/m68k-for-2.12-pull-request' into staging

# gpg: Signature made Fri 09 Mar 2018 14:54:33 GMT
# gpg:                using RSA key F30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>"
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>"
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>"
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier/tags/m68k-for-2.12-pull-request:
  target/m68k: implement ftentox
  target/m68k: implement ftwotox
  target/m68k: implement fetox
  target/m68k: implement flog2
  target/m68k: implement flog10
  target/m68k: implement flogn
  target/m68k: implement flognp1
  target/m68k: define floatx80_move()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

6 files changed, 1464 insertions, 0 deletions

diff --git a/target/m68k/fpu_helper.c b/target/m68k/fpu_helper.c
index cdb9b50462..62cbb0dff1 100644
--- a/target/m68k/fpu_helper.c
+++ b/target/m68k/fpu_helper.c
@@ -557,3 +557,38 @@ void HELPER(fscale)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
 {
     res->d = floatx80_scale(val1->d, val0->d, &env->fp_status);
 }
+
+void HELPER(flognp1)(CPUM68KState *env, FPReg *res, FPReg *val)
+{
+    res->d = floatx80_lognp1(val->d, &env->fp_status);
+}
+
+void HELPER(flogn)(CPUM68KState *env, FPReg *res, FPReg *val)
+{
+    res->d = floatx80_logn(val->d, &env->fp_status);
+}
+
+void HELPER(flog10)(CPUM68KState *env, FPReg *res, FPReg *val)
+{
+    res->d = floatx80_log10(val->d, &env->fp_status);
+}
+
+void HELPER(flog2)(CPUM68KState *env, FPReg *res, FPReg *val)
+{
+    res->d = floatx80_log2(val->d, &env->fp_status);
+}
+
+void HELPER(fetox)(CPUM68KState *env, FPReg *res, FPReg *val)
+{
+    res->d = floatx80_etox(val->d, &env->fp_status);
+}
+
+void HELPER(ftwotox)(CPUM68KState *env, FPReg *res, FPReg *val)
+{
+    res->d = floatx80_twotox(val->d, &env->fp_status);
+}
+
+void HELPER(ftentox)(CPUM68KState *env, FPReg *res, FPReg *val)
+{
+    res->d = floatx80_tentox(val->d, &env->fp_status);
+}
diff --git a/target/m68k/helper.h b/target/m68k/helper.h
index c348dced3a..9a9734c196 100644
--- a/target/m68k/helper.h
+++ b/target/m68k/helper.h
@@ -68,6 +68,13 @@ DEF_HELPER_4(frem, void, env, fp, fp, fp)
 DEF_HELPER_3(fgetexp, void, env, fp, fp)
 DEF_HELPER_3(fgetman, void, env, fp, fp)
 DEF_HELPER_4(fscale, void, env, fp, fp, fp)
+DEF_HELPER_3(flognp1, void, env, fp, fp)
+DEF_HELPER_3(flogn, void, env, fp, fp)
+DEF_HELPER_3(flog10, void, env, fp, fp)
+DEF_HELPER_3(flog2, void, env, fp, fp)
+DEF_HELPER_3(fetox, void, env, fp, fp)
+DEF_HELPER_3(ftwotox, void, env, fp, fp)
+DEF_HELPER_3(ftentox, void, env, fp, fp)
 
 DEF_HELPER_3(mac_move, void, env, i32, i32)
 DEF_HELPER_3(macmulf, i64, env, i32, i32)
diff --git a/target/m68k/softfloat.c b/target/m68k/softfloat.c
index 9cb141900c..4bd5b9e6b7 100644
--- a/target/m68k/softfloat.c
+++ b/target/m68k/softfloat.c
@@ -21,6 +21,7 @@
 #include "qemu/osdep.h"
 #include "softfloat.h"
 #include "fpu/softfloat-macros.h"
+#include "softfloat_fpsp_tables.h"
 
 static floatx80 propagateFloatx80NaNOneArg(floatx80 a, float_status *status)
 {
@@ -247,3 +248,1021 @@ floatx80 floatx80_scale(floatx80 a, floatx80 b, float_status *status)
     return roundAndPackFloatx80(status->floatx80_rounding_precision,
                                 aSign, aExp, aSig, 0, status);
 }
+
+floatx80 floatx80_move(floatx80 a, float_status *status)
+{
+    flag aSign;
+    int32_t aExp;
+    uint64_t aSig;
+
+    aSig = extractFloatx80Frac(a);
+    aExp = extractFloatx80Exp(a);
+    aSign = extractFloatx80Sign(a);
+
+    if (aExp == 0x7FFF) {
+        if ((uint64_t)(aSig << 1)) {
+            return propagateFloatx80NaNOneArg(a, status);
+        }
+        return a;
+    }
+    if (aExp == 0) {
+        if (aSig == 0) {
+            return a;
+        }
+        normalizeRoundAndPackFloatx80(status->floatx80_rounding_precision,
+                                      aSign, aExp, aSig, 0, status);
+    }
+    return roundAndPackFloatx80(status->floatx80_rounding_precision, aSign,
+                                aExp, aSig, 0, status);
+}
+
+/*----------------------------------------------------------------------------
+| Algorithms for transcendental functions supported by MC68881 and MC68882
+| mathematical coprocessors. The functions are derived from FPSP library.
+*----------------------------------------------------------------------------*/
+
+#define one_exp     0x3FFF
+#define one_sig     LIT64(0x8000000000000000)
+
+/*----------------------------------------------------------------------------
+ | Function for compactifying extended double-precision floating point values.
+ *----------------------------------------------------------------------------*/
+
+static int32_t floatx80_make_compact(int32_t aExp, uint64_t aSig)
+{
+    return (aExp << 16) | (aSig >> 48);
+}
+
+/*----------------------------------------------------------------------------
+ | Log base e of x plus 1
+ *----------------------------------------------------------------------------*/
+
+floatx80 floatx80_lognp1(floatx80 a, float_status *status)
+{
+    flag aSign;
+    int32_t aExp;
+    uint64_t aSig, fSig;
+
+    int8_t user_rnd_mode, user_rnd_prec;
+
+    int32_t compact, j, k;
+    floatx80 fp0, fp1, fp2, fp3, f, logof2, klog2, saveu;
+
+    aSig = extractFloatx80Frac(a);
+    aExp = extractFloatx80Exp(a);
+    aSign = extractFloatx80Sign(a);
+
+    if (aExp == 0x7FFF) {
+        if ((uint64_t) (aSig << 1)) {
+            propagateFloatx80NaNOneArg(a, status);
+        }
+        if (aSign) {
+            float_raise(float_flag_invalid, status);
+            return floatx80_default_nan(status);
+        }
+        return packFloatx80(0, floatx80_infinity.high, floatx80_infinity.low);
+    }
+
+    if (aExp == 0 && aSig == 0) {
+        return packFloatx80(aSign, 0, 0);
+    }
+
+    if (aSign && aExp >= one_exp) {
+        if (aExp == one_exp && aSig == one_sig) {
+            float_raise(float_flag_divbyzero, status);
+            packFloatx80(aSign, floatx80_infinity.high, floatx80_infinity.low);
+        }
+        float_raise(float_flag_invalid, status);
+        return floatx80_default_nan(status);
+    }
+
+    if (aExp < 0x3f99 || (aExp == 0x3f99 && aSig == one_sig)) {
+        /* <= min threshold */
+        float_raise(float_flag_inexact, status);
+        return floatx80_move(a, status);
+    }
+
+    user_rnd_mode = status->float_rounding_mode;
+    user_rnd_prec = status->floatx80_rounding_precision;
+    status->float_rounding_mode = float_round_nearest_even;
+    status->floatx80_rounding_precision = 80;
+
+    compact = floatx80_make_compact(aExp, aSig);
+
+    fp0 = a; /* Z */
+    fp1 = a;
+
+    fp0 = floatx80_add(fp0, float32_to_floatx80(make_float32(0x3F800000),
+                       status), status); /* X = (1+Z) */
+
+    aExp = extractFloatx80Exp(fp0);
+    aSig = extractFloatx80Frac(fp0);
+
+    compact = floatx80_make_compact(aExp, aSig);
+
+    if (compact < 0x3FFE8000 || compact > 0x3FFFC000) {
+        /* |X| < 1/2 or |X| > 3/2 */
+        k = aExp - 0x3FFF;
+        fp1 = int32_to_floatx80(k, status);
+
+        fSig = (aSig & LIT64(0xFE00000000000000)) | LIT64(0x0100000000000000);
+        j = (fSig >> 56) & 0x7E; /* DISPLACEMENT FOR 1/F */
+
+        f = packFloatx80(0, 0x3FFF, fSig); /* F */
+        fp0 = packFloatx80(0, 0x3FFF, aSig); /* Y */
+
+        fp0 = floatx80_sub(fp0, f, status); /* Y-F */
+
+    lp1cont1:
+        /* LP1CONT1 */
+        fp0 = floatx80_mul(fp0, log_tbl[j], status); /* FP0 IS U = (Y-F)/F */
+        logof2 = packFloatx80(0, 0x3FFE, LIT64(0xB17217F7D1CF79AC));
+        klog2 = floatx80_mul(fp1, logof2, status); /* FP1 IS K*LOG2 */
+        fp2 = floatx80_mul(fp0, fp0, status); /* FP2 IS V=U*U */
+
+        fp3 = fp2;
+        fp1 = fp2;
+
+        fp1 = floatx80_mul(fp1, float64_to_floatx80(
+                           make_float64(0x3FC2499AB5E4040B), status),
+                           status); /* V*A6 */
+        fp2 = floatx80_mul(fp2, float64_to_floatx80(
+                           make_float64(0xBFC555B5848CB7DB), status),
+                           status); /* V*A5 */
+        fp1 = floatx80_add(fp1, float64_to_floatx80(
+                           make_float64(0x3FC99999987D8730), status),
+                           status); /* A4+V*A6 */
+        fp2 = floatx80_add(fp2, float64_to_floatx80(
+                           make_float64(0xBFCFFFFFFF6F7E97), status),
+                           status); /* A3+V*A5 */
+        fp1 = floatx80_mul(fp1, fp3, status); /* V*(A4+V*A6) */
+        fp2 = floatx80_mul(fp2, fp3, status); /* V*(A3+V*A5) */
+        fp1 = floatx80_add(fp1, float64_to_floatx80(
+                           make_float64(0x3FD55555555555A4), status),
+                           status); /* A2+V*(A4+V*A6) */
+        fp2 = floatx80_add(fp2, float64_to_floatx80(
+                           make_float64(0xBFE0000000000008), status),
+                           status); /* A1+V*(A3+V*A5) */
+        fp1 = floatx80_mul(fp1, fp3, status); /* V*(A2+V*(A4+V*A6)) */
+        fp2 = floatx80_mul(fp2, fp3, status); /* V*(A1+V*(A3+V*A5)) */
+        fp1 = floatx80_mul(fp1, fp0, status); /* U*V*(A2+V*(A4+V*A6)) */
+        fp0 = floatx80_add(fp0, fp2, status); /* U+V*(A1+V*(A3+V*A5)) */
+
+        fp1 = floatx80_add(fp1, log_tbl[j + 1],
+                           status); /* LOG(F)+U*V*(A2+V*(A4+V*A6)) */
+        fp0 = floatx80_add(fp0, fp1, status); /* FP0 IS LOG(F) + LOG(1+U) */
+
+        status->float_rounding_mode = user_rnd_mode;
+        status->floatx80_rounding_precision = user_rnd_prec;
+
+        a = floatx80_add(fp0, klog2, status);
+
+        float_raise(float_flag_inexact, status);
+
+        return a;
+    } else if (compact < 0x3FFEF07D || compact > 0x3FFF8841) {
+        /* |X| < 1/16 or |X| > -1/16 */
+        /* LP1CARE */
+        fSig = (aSig & LIT64(0xFE00000000000000)) | LIT64(0x0100000000000000);
+        f = packFloatx80(0, 0x3FFF, fSig); /* F */
+        j = (fSig >> 56) & 0x7E; /* DISPLACEMENT FOR 1/F */
+
+        if (compact >= 0x3FFF8000) { /* 1+Z >= 1 */
+            /* KISZERO */
+            fp0 = floatx80_sub(float32_to_floatx80(make_float32(0x3F800000),
+                               status), f, status); /* 1-F */
+            fp0 = floatx80_add(fp0, fp1, status); /* FP0 IS Y-F = (1-F)+Z */
+            fp1 = packFloatx80(0, 0, 0); /* K = 0 */
+        } else {
+            /* KISNEG */
+            fp0 = floatx80_sub(float32_to_floatx80(make_float32(0x40000000),
+                               status), f, status); /* 2-F */
+            fp1 = floatx80_add(fp1, fp1, status); /* 2Z */
+            fp0 = floatx80_add(fp0, fp1, status); /* FP0 IS Y-F = (2-F)+2Z */
+            fp1 = packFloatx80(1, one_exp, one_sig); /* K = -1 */
+        }
+        goto lp1cont1;
+    } else {
+        /* LP1ONE16 */
+        fp1 = floatx80_add(fp1, fp1, status); /* FP1 IS 2Z */
+        fp0 = floatx80_add(fp0, float32_to_floatx80(make_float32(0x3F800000),
+                           status), status); /* FP0 IS 1+X */
+
+        /* LP1CONT2 */
+        fp1 = floatx80_div(fp1, fp0, status); /* U */
+        saveu = fp1;
+        fp0 = floatx80_mul(fp1, fp1, status); /* FP0 IS V = U*U */
+        fp1 = floatx80_mul(fp0, fp0, status); /* FP1 IS W = V*V */
+
+        fp3 = float64_to_floatx80(make_float64(0x3F175496ADD7DAD6),
+                                  status); /* B5 */
+        fp2 = float64_to_floatx80(make_float64(0x3F3C71C2FE80C7E0),
+                                  status); /* B4 */
+        fp3 = floatx80_mul(fp3, fp1, status); /* W*B5 */
+        fp2 = floatx80_mul(fp2, fp1, status); /* W*B4 */
+        fp3 = floatx80_add(fp3, float64_to_floatx80(
+                           make_float64(0x3F624924928BCCFF), status),
+                           status); /* B3+W*B5 */
+        fp2 = floatx80_add(fp2, float64_to_floatx80(
+                           make_float64(0x3F899999999995EC), status),
+                           status); /* B2+W*B4 */
+        fp1 = floatx80_mul(fp1, fp3, status); /* W*(B3+W*B5) */
+        fp2 = floatx80_mul(fp2, fp0, status); /* V*(B2+W*B4) */
+        fp1 = floatx80_add(fp1, float64_to_floatx80(
+                           make_float64(0x3FB5555555555555), status),
+                           status); /* B1+W*(B3+W*B5) */
+
+        fp0 = floatx80_mul(fp0, saveu, status); /* FP0 IS U*V */
+        fp1 = floatx80_add(fp1, fp2,
+                           status); /* B1+W*(B3+W*B5) + V*(B2+W*B4) */
+        fp0 = floatx80_mul(fp0, fp1,
+                           status); /* U*V*([B1+W*(B3+W*B5)] + [V*(B2+W*B4)]) */
+
+        status->float_rounding_mode = user_rnd_mode;
+        status->floatx80_rounding_precision = user_rnd_prec;
+
+        a = floatx80_add(fp0, saveu, status);
+
+        /*if (!floatx80_is_zero(a)) { */
+            float_raise(float_flag_inexact, status);
+        /*} */
+
+        return a;
+    }
+}
+
+/*----------------------------------------------------------------------------
+ | Log base e
+ *----------------------------------------------------------------------------*/
+
+floatx80 floatx80_logn(floatx80 a, float_status *status)
+{
+    flag aSign;
+    int32_t aExp;
+    uint64_t aSig, fSig;
+
+    int8_t user_rnd_mode, user_rnd_prec;
+
+    int32_t compact, j, k, adjk;
+    floatx80 fp0, fp1, fp2, fp3, f, logof2, klog2, saveu;
+
+    aSig = extractFloatx80Frac(a);
+    aExp = extractFloatx80Exp(a);
+    aSign = extractFloatx80Sign(a);
+
+    if (aExp == 0x7FFF) {
+        if ((uint64_t) (aSig << 1)) {
+            propagateFloatx80NaNOneArg(a, status);
+        }
+        if (aSign == 0) {
+            return packFloatx80(0, floatx80_infinity.high,
+                                floatx80_infinity.low);
+        }
+    }
+
+    adjk = 0;
+
+    if (aExp == 0) {
+        if (aSig == 0) { /* zero */
+            float_raise(float_flag_divbyzero, status);
+            return packFloatx80(1, floatx80_infinity.high,
+                                floatx80_infinity.low);
+        }
+        if ((aSig & one_sig) == 0) { /* denormal */
+            normalizeFloatx80Subnormal(aSig, &aExp, &aSig);
+            adjk = -100;
+            aExp += 100;
+            a = packFloatx80(aSign, aExp, aSig);
+        }
+    }
+
+    if (aSign) {
+        float_raise(float_flag_invalid, status);
+        return floatx80_default_nan(status);
+    }
+
+    user_rnd_mode = status->float_rounding_mode;
+    user_rnd_prec = status->floatx80_rounding_precision;
+    status->float_rounding_mode = float_round_nearest_even;
+    status->floatx80_rounding_precision = 80;
+
+    compact = floatx80_make_compact(aExp, aSig);
+
+    if (compact < 0x3FFEF07D || compact > 0x3FFF8841) {
+        /* |X| < 15/16 or |X| > 17/16 */
+        k = aExp - 0x3FFF;
+        k += adjk;
+        fp1 = int32_to_floatx80(k, status);
+
+        fSig = (aSig & LIT64(0xFE00000000000000)) | LIT64(0x0100000000000000);
+        j = (fSig >> 56) & 0x7E; /* DISPLACEMENT FOR 1/F */
+
+        f = packFloatx80(0, 0x3FFF, fSig); /* F */
+        fp0 = packFloatx80(0, 0x3FFF, aSig); /* Y */
+
+        fp0 = floatx80_sub(fp0, f, status); /* Y-F */
+
+        /* LP1CONT1 */
+        fp0 = floatx80_mul(fp0, log_tbl[j], status); /* FP0 IS U = (Y-F)/F */
+        logof2 = packFloatx80(0, 0x3FFE, LIT64(0xB17217F7D1CF79AC));
+        klog2 = floatx80_mul(fp1, logof2, status); /* FP1 IS K*LOG2 */
+        fp2 = floatx80_mul(fp0, fp0, status); /* FP2 IS V=U*U */
+
+        fp3 = fp2;
+        fp1 = fp2;
+
+        fp1 = floatx80_mul(fp1, float64_to_floatx80(
+                           make_float64(0x3FC2499AB5E4040B), status),
+                           status); /* V*A6 */
+        fp2 = floatx80_mul(fp2, float64_to_floatx80(
+                           make_float64(0xBFC555B5848CB7DB), status),
+                           status); /* V*A5 */
+        fp1 = floatx80_add(fp1, float64_to_floatx80(
+                           make_float64(0x3FC99999987D8730), status),
+                           status); /* A4+V*A6 */
+        fp2 = floatx80_add(fp2, float64_to_floatx80(
+                           make_float64(0xBFCFFFFFFF6F7E97), status),
+                           status); /* A3+V*A5 */
+        fp1 = floatx80_mul(fp1, fp3, status); /* V*(A4+V*A6) */
+        fp2 = floatx80_mul(fp2, fp3, status); /* V*(A3+V*A5) */
+        fp1 = floatx80_add(fp1, float64_to_floatx80(
+                           make_float64(0x3FD55555555555A4), status),
+                           status); /* A2+V*(A4+V*A6) */
+        fp2 = floatx80_add(fp2, float64_to_floatx80(
+                           make_float64(0xBFE0000000000008), status),
+                           status); /* A1+V*(A3+V*A5) */
+        fp1 = floatx80_mul(fp1, fp3, status); /* V*(A2+V*(A4+V*A6)) */
+        fp2 = floatx80_mul(fp2, fp3, status); /* V*(A1+V*(A3+V*A5)) */
+        fp1 = floatx80_mul(fp1, fp0, status); /* U*V*(A2+V*(A4+V*A6)) */
+        fp0 = floatx80_add(fp0, fp2, status); /* U+V*(A1+V*(A3+V*A5)) */
+
+        fp1 = floatx80_add(fp1, log_tbl[j + 1],
+                           status); /* LOG(F)+U*V*(A2+V*(A4+V*A6)) */
+        fp0 = floatx80_add(fp0, fp1, status); /* FP0 IS LOG(F) + LOG(1+U) */
+
+        status->float_rounding_mode = user_rnd_mode;
+        status->floatx80_rounding_precision = user_rnd_prec;
+
+        a = floatx80_add(fp0, klog2, status);
+
+        float_raise(float_flag_inexact, status);
+
+        return a;
+    } else { /* |X-1| >= 1/16 */
+        fp0 = a;
+        fp1 = a;
+        fp1 = floatx80_sub(fp1, float32_to_floatx80(make_float32(0x3F800000),
+                           status), status); /* FP1 IS X-1 */
+        fp0 = floatx80_add(fp0, float32_to_floatx80(make_float32(0x3F800000),
+                           status), status); /* FP0 IS X+1 */
+        fp1 = floatx80_add(fp1, fp1, status); /* FP1 IS 2(X-1) */
+
+        /* LP1CONT2 */
+        fp1 = floatx80_div(fp1, fp0, status); /* U */
+        saveu = fp1;
+        fp0 = floatx80_mul(fp1, fp1, status); /* FP0 IS V = U*U */
+        fp1 = floatx80_mul(fp0, fp0, status); /* FP1 IS W = V*V */
+
+        fp3 = float64_to_floatx80(make_float64(0x3F175496ADD7DAD6),
+                                  status); /* B5 */
+        fp2 = float64_to_floatx80(make_float64(0x3F3C71C2FE80C7E0),
+                                  status); /* B4 */
+        fp3 = floatx80_mul(fp3, fp1, status); /* W*B5 */
+        fp2 = floatx80_mul(fp2, fp1, status); /* W*B4 */
+        fp3 = floatx80_add(fp3, float64_to_floatx80(
+                           make_float64(0x3F624924928BCCFF), status),
+                           status); /* B3+W*B5 */
+        fp2 = floatx80_add(fp2, float64_to_floatx80(
+                           make_float64(0x3F899999999995EC), status),
+                           status); /* B2+W*B4 */
+        fp1 = floatx80_mul(fp1, fp3, status); /* W*(B3+W*B5) */
+        fp2 = floatx80_mul(fp2, fp0, status); /* V*(B2+W*B4) */
+        fp1 = floatx80_add(fp1, float64_to_floatx80(
+                           make_float64(0x3FB5555555555555), status),
+                           status); /* B1+W*(B3+W*B5) */
+
+        fp0 = floatx80_mul(fp0, saveu, status); /* FP0 IS U*V */
+        fp1 = floatx80_add(fp1, fp2, status); /* B1+W*(B3+W*B5) + V*(B2+W*B4) */
+        fp0 = floatx80_mul(fp0, fp1,
+                           status); /* U*V*([B1+W*(B3+W*B5)] + [V*(B2+W*B4)]) */
+
+        status->float_rounding_mode = user_rnd_mode;
+        status->floatx80_rounding_precision = user_rnd_prec;
+
+        a = floatx80_add(fp0, saveu, status);
+
+        /*if (!floatx80_is_zero(a)) { */
+            float_raise(float_flag_inexact, status);
+        /*} */
+
+        return a;
+    }
+}
+
+/*----------------------------------------------------------------------------
+ | Log base 10
+ *----------------------------------------------------------------------------*/
+
+floatx80 floatx80_log10(floatx80 a, float_status *status)
+{
+    flag aSign;
+    int32_t aExp;
+    uint64_t aSig;
+
+    int8_t user_rnd_mode, user_rnd_prec;
+
+    floatx80 fp0, fp1;
+
+    aSig = extractFloatx80Frac(a);
+    aExp = extractFloatx80Exp(a);
+    aSign = extractFloatx80Sign(a);
+
+    if (aExp == 0x7FFF) {
+        if ((uint64_t) (aSig << 1)) {
+            propagateFloatx80NaNOneArg(a, status);
+        }
+        if (aSign == 0) {
+            return packFloatx80(0, floatx80_infinity.high,
+                                floatx80_infinity.low);
+        }
+    }
+
+    if (aExp == 0 && aSig == 0) {
+        float_raise(float_flag_divbyzero, status);
+        return packFloatx80(1, floatx80_infinity.high,
+                            floatx80_infinity.low);
+    }
+
+    if (aSign) {
+        float_raise(float_flag_invalid, status);
+        return floatx80_default_nan(status);
+    }
+
+    user_rnd_mode = status->float_rounding_mode;
+    user_rnd_prec = status->floatx80_rounding_precision;
+    status->float_rounding_mode = float_round_nearest_even;
+    status->floatx80_rounding_precision = 80;
+
+    fp0 = floatx80_logn(a, status);
+    fp1 = packFloatx80(0, 0x3FFD, LIT64(0xDE5BD8A937287195)); /* INV_L10 */
+
+    status->float_rounding_mode = user_rnd_mode;
+    status->floatx80_rounding_precision = user_rnd_prec;
+
+    a = floatx80_mul(fp0, fp1, status); /* LOGN(X)*INV_L10 */
+
+    float_raise(float_flag_inexact, status);
+
+    return a;
+}
+
+/*----------------------------------------------------------------------------
+ | Log base 2
+ *----------------------------------------------------------------------------*/
+
+floatx80 floatx80_log2(floatx80 a, float_status *status)
+{
+    flag aSign;
+    int32_t aExp;
+    uint64_t aSig;
+
+    int8_t user_rnd_mode, user_rnd_prec;
+
+    floatx80 fp0, fp1;
+
+    aSig = extractFloatx80Frac(a);
+    aExp = extractFloatx80Exp(a);
+    aSign = extractFloatx80Sign(a);
+
+    if (aExp == 0x7FFF) {
+        if ((uint64_t) (aSig << 1)) {
+            propagateFloatx80NaNOneArg(a, status);
+        }
+        if (aSign == 0) {
+            return packFloatx80(0, floatx80_infinity.high,
+                                floatx80_infinity.low);
+        }
+    }
+
+    if (aExp == 0) {
+        if (aSig == 0) {
+            float_raise(float_flag_divbyzero, status);
+            return packFloatx80(1, floatx80_infinity.high,
+                                floatx80_infinity.low);
+        }
+        normalizeFloatx80Subnormal(aSig, &aExp, &aSig);
+    }
+
+    if (aSign) {
+        float_raise(float_flag_invalid, status);
+        return floatx80_default_nan(status);
+    }
+
+    user_rnd_mode = status->float_rounding_mode;
+    user_rnd_prec = status->floatx80_rounding_precision;
+    status->float_rounding_mode = float_round_nearest_even;
+    status->floatx80_rounding_precision = 80;
+
+    if (aSig == one_sig) { /* X is 2^k */
+        status->float_rounding_mode = user_rnd_mode;
+        status->floatx80_rounding_precision = user_rnd_prec;
+
+        a = int32_to_floatx80(aExp - 0x3FFF, status);
+    } else {
+        fp0 = floatx80_logn(a, status);
+        fp1 = packFloatx80(0, 0x3FFF, LIT64(0xB8AA3B295C17F0BC)); /* INV_L2 */
+
+        status->float_rounding_mode = user_rnd_mode;
+        status->floatx80_rounding_precision = user_rnd_prec;
+
+        a = floatx80_mul(fp0, fp1, status); /* LOGN(X)*INV_L2 */
+    }
+
+    float_raise(float_flag_inexact, status);
+
+    return a;
+}
+
+/*----------------------------------------------------------------------------
+ | e to x
+ *----------------------------------------------------------------------------*/
+
+floatx80 floatx80_etox(floatx80 a, float_status *status)
+{
+    flag aSign;
+    int32_t aExp;
+    uint64_t aSig;
+
+    int8_t user_rnd_mode, user_rnd_prec;
+
+    int32_t compact, n, j, k, m, m1;
+    floatx80 fp0, fp1, fp2, fp3, l2, scale, adjscale;
+    flag adjflag;
+
+    aSig = extractFloatx80Frac(a);
+    aExp = extractFloatx80Exp(a);
+    aSign = extractFloatx80Sign(a);
+
+    if (aExp == 0x7FFF) {
+        if ((uint64_t) (aSig << 1)) {
+            return propagateFloatx80NaNOneArg(a, status);
+        }
+        if (aSign) {
+            return packFloatx80(0, 0, 0);
+        }
+        return packFloatx80(0, floatx80_infinity.high,
+                            floatx80_infinity.low);
+    }
+
+    if (aExp == 0 && aSig == 0) {
+        return packFloatx80(0, one_exp, one_sig);
+    }
+
+    user_rnd_mode = status->float_rounding_mode;
+    user_rnd_prec = status->floatx80_rounding_precision;
+    status->float_rounding_mode = float_round_nearest_even;
+    status->floatx80_rounding_precision = 80;
+
+    adjflag = 0;
+
+    if (aExp >= 0x3FBE) { /* |X| >= 2^(-65) */
+        compact = floatx80_make_compact(aExp, aSig);
+
+        if (compact < 0x400CB167) { /* |X| < 16380 log2 */
+            fp0 = a;
+            fp1 = a;
+            fp0 = floatx80_mul(fp0, float32_to_floatx80(
+                               make_float32(0x42B8AA3B), status),
+                               status); /* 64/log2 * X */
+            adjflag = 0;
+            n = floatx80_to_int32(fp0, status); /* int(64/log2*X) */
+            fp0 = int32_to_floatx80(n, status);
+
+            j = n & 0x3F; /* J = N mod 64 */
+            m = n / 64; /* NOTE: this is really arithmetic right shift by 6 */
+            if (n < 0 && j) {
+                /* arithmetic right shift is division and
+                 * round towards minus infinity
+                 */
+                m--;
+            }
+            m += 0x3FFF; /* biased exponent of 2^(M) */
+
+        expcont1:
+            fp2 = fp0; /* N */
+            fp0 = floatx80_mul(fp0, float32_to_floatx80(
+                               make_float32(0xBC317218), status),
+                               status); /* N * L1, L1 = lead(-log2/64) */
+            l2 = packFloatx80(0, 0x3FDC, LIT64(0x82E308654361C4C6));
+            fp2 = floatx80_mul(fp2, l2, status); /* N * L2, L1+L2 = -log2/64 */
+            fp0 = floatx80_add(fp0, fp1, status); /* X + N*L1 */
+            fp0 = floatx80_add(fp0, fp2, status); /* R */
+
+            fp1 = floatx80_mul(fp0, fp0, status); /* S = R*R */
+            fp2 = float32_to_floatx80(make_float32(0x3AB60B70),
+                                      status); /* A5 */
+            fp2 = floatx80_mul(fp2, fp1, status); /* fp2 is S*A5 */
+            fp3 = floatx80_mul(float32_to_floatx80(make_float32(0x3C088895),
+                               status), fp1,
+                               status); /* fp3 is S*A4 */
+            fp2 = floatx80_add(fp2, float64_to_floatx80(make_float64(
+                               0x3FA5555555554431), status),
+                               status); /* fp2 is A3+S*A5 */
+            fp3 = floatx80_add(fp3, float64_to_floatx80(make_float64(
+                               0x3FC5555555554018), status),
+                               status); /* fp3 is A2+S*A4 */
+            fp2 = floatx80_mul(fp2, fp1, status); /* fp2 is S*(A3+S*A5) */
+            fp3 = floatx80_mul(fp3, fp1, status); /* fp3 is S*(A2+S*A4) */
+            fp2 = floatx80_add(fp2, float32_to_floatx80(
+                               make_float32(0x3F000000), status),
+                               status); /* fp2 is A1+S*(A3+S*A5) */
+            fp3 = floatx80_mul(fp3, fp0, status); /* fp3 IS R*S*(A2+S*A4) */
+            fp2 = floatx80_mul(fp2, fp1,
+                               status); /* fp2 IS S*(A1+S*(A3+S*A5)) */
+            fp0 = floatx80_add(fp0, fp3, status); /* fp0 IS R+R*S*(A2+S*A4) */
+            fp0 = floatx80_add(fp0, fp2, status); /* fp0 IS EXP(R) - 1 */
+
+            fp1 = exp_tbl[j];
+            fp0 = floatx80_mul(fp0, fp1, status); /* 2^(J/64)*(Exp(R)-1) */
+            fp0 = floatx80_add(fp0, float32_to_floatx80(exp_tbl2[j], status),
+                               status); /* accurate 2^(J/64) */
+            fp0 = floatx80_add(fp0, fp1,
+                               status); /* 2^(J/64) + 2^(J/64)*(Exp(R)-1) */
+
+            scale = packFloatx80(0, m, one_sig);
+            if (adjflag) {
+                adjscale = packFloatx80(0, m1, one_sig);
+                fp0 = floatx80_mul(fp0, adjscale, status);
+            }
+
+            status->float_rounding_mode = user_rnd_mode;
+            status->floatx80_rounding_precision = user_rnd_prec;
+
+            a = floatx80_mul(fp0, scale, status);
+
+            float_raise(float_flag_inexact, status);
+
+            return a;
+        } else { /* |X| >= 16380 log2 */
+            if (compact > 0x400CB27C) { /* |X| >= 16480 log2 */
+                status->float_rounding_mode = user_rnd_mode;
+                status->floatx80_rounding_precision = user_rnd_prec;
+                if (aSign) {
+                    a = roundAndPackFloatx80(
+                                           status->floatx80_rounding_precision,
+                                           0, -0x1000, aSig, 0, status);
+                } else {
+                    a = roundAndPackFloatx80(
+                                           status->floatx80_rounding_precision,
+                                           0, 0x8000, aSig, 0, status);
+                }
+                float_raise(float_flag_inexact, status);
+
+                return a;
+            } else {
+                fp0 = a;
+                fp1 = a;
+                fp0 = floatx80_mul(fp0, float32_to_floatx80(
+                                   make_float32(0x42B8AA3B), status),
+                                   status); /* 64/log2 * X */
+                adjflag = 1;
+                n = floatx80_to_int32(fp0, status); /* int(64/log2*X) */
+                fp0 = int32_to_floatx80(n, status);
+
+                j = n & 0x3F; /* J = N mod 64 */
+                /* NOTE: this is really arithmetic right shift by 6 */
+                k = n / 64;
+                if (n < 0 && j) {
+                    /* arithmetic right shift is division and
+                     * round towards minus infinity
+                     */
+                    k--;
+                }
+                /* NOTE: this is really arithmetic right shift by 1 */
+                m1 = k / 2;
+                if (k < 0 && (k & 1)) {
+                    /* arithmetic right shift is division and
+                     * round towards minus infinity
+                     */
+                    m1--;
+                }
+                m = k - m1;
+                m1 += 0x3FFF; /* biased exponent of 2^(M1) */
+                m += 0x3FFF; /* biased exponent of 2^(M) */
+
+                goto expcont1;
+            }
+        }
+    } else { /* |X| < 2^(-65) */
+        status->float_rounding_mode = user_rnd_mode;
+        status->floatx80_rounding_precision = user_rnd_prec;
+
+        a = floatx80_add(a, float32_to_floatx80(make_float32(0x3F800000),
+                         status), status); /* 1 + X */
+
+        float_raise(float_flag_inexact, status);
+
+        return a;
+    }
+}
+
+/*----------------------------------------------------------------------------
+ | 2 to x
+ *----------------------------------------------------------------------------*/
+
+floatx80 floatx80_twotox(floatx80 a, float_status *status)
+{
+    flag aSign;
+    int32_t aExp;
+    uint64_t aSig;
+
+    int8_t user_rnd_mode, user_rnd_prec;
+
+    int32_t compact, n, j, l, m, m1;
+    floatx80 fp0, fp1, fp2, fp3, adjfact, fact1, fact2;
+
+    aSig = extractFloatx80Frac(a);
+    aExp = extractFloatx80Exp(a);
+    aSign = extractFloatx80Sign(a);
+
+    if (aExp == 0x7FFF) {
+        if ((uint64_t) (aSig << 1)) {
+            return propagateFloatx80NaNOneArg(a, status);
+        }
+        if (aSign) {
+            return packFloatx80(0, 0, 0);
+        }
+        return packFloatx80(0, floatx80_infinity.high,
+                            floatx80_infinity.low);
+    }
+
+    if (aExp == 0 && aSig == 0) {
+        return packFloatx80(0, one_exp, one_sig);
+    }
+
+    user_rnd_mode = status->float_rounding_mode;
+    user_rnd_prec = status->floatx80_rounding_precision;
+    status->float_rounding_mode = float_round_nearest_even;
+    status->floatx80_rounding_precision = 80;
+
+    fp0 = a;
+
+    compact = floatx80_make_compact(aExp, aSig);
+
+    if (compact < 0x3FB98000 || compact > 0x400D80C0) {
+        /* |X| > 16480 or |X| < 2^(-70) */
+        if (compact > 0x3FFF8000) { /* |X| > 16480 */
+            status->float_rounding_mode = user_rnd_mode;
+            status->floatx80_rounding_precision = user_rnd_prec;
+
+            if (aSign) {
+                return roundAndPackFloatx80(status->floatx80_rounding_precision,
+                                            0, -0x1000, aSig, 0, status);
+            } else {
+                return roundAndPackFloatx80(status->floatx80_rounding_precision,
+                                            0, 0x8000, aSig, 0, status);
+            }
+        } else { /* |X| < 2^(-70) */
+            status->float_rounding_mode = user_rnd_mode;
+            status->floatx80_rounding_precision = user_rnd_prec;
+
+            a = floatx80_add(fp0, float32_to_floatx80(
+                             make_float32(0x3F800000), status),
+                             status); /* 1 + X */
+
+            float_raise(float_flag_inexact, status);
+
+            return a;
+        }
+    } else { /* 2^(-70) <= |X| <= 16480 */
+        fp1 = fp0; /* X */
+        fp1 = floatx80_mul(fp1, float32_to_floatx80(
+                           make_float32(0x42800000), status),
+                           status); /* X * 64 */
+        n = floatx80_to_int32(fp1, status);
+        fp1 = int32_to_floatx80(n, status);
+        j = n & 0x3F;
+        l = n / 64; /* NOTE: this is really arithmetic right shift by 6 */
+        if (n < 0 && j) {
+            /* arithmetic right shift is division and
+             * round towards minus infinity
+             */
+            l--;
+        }
+        m = l / 2; /* NOTE: this is really arithmetic right shift by 1 */
+        if (l < 0 && (l & 1)) {
+            /* arithmetic right shift is division and
+             * round towards minus infinity
+             */
+            m--;
+        }
+        m1 = l - m;
+        m1 += 0x3FFF; /* ADJFACT IS 2^(M') */
+
+        adjfact = packFloatx80(0, m1, one_sig);
+        fact1 = exp2_tbl[j];
+        fact1.high += m;
+        fact2.high = exp2_tbl2[j] >> 16;
+        fact2.high += m;
+        fact2.low = (uint64_t)(exp2_tbl2[j] & 0xFFFF);
+        fact2.low <<= 48;
+
+        fp1 = floatx80_mul(fp1, float32_to_floatx80(
+                           make_float32(0x3C800000), status),
+                           status); /* (1/64)*N */
+        fp0 = floatx80_sub(fp0, fp1, status); /* X - (1/64)*INT(64 X) */
+        fp2 = packFloatx80(0, 0x3FFE, LIT64(0xB17217F7D1CF79AC)); /* LOG2 */
+        fp0 = floatx80_mul(fp0, fp2, status); /* R */
+
+        /* EXPR */
+        fp1 = floatx80_mul(fp0, fp0, status); /* S = R*R */
+        fp2 = float64_to_floatx80(make_float64(0x3F56C16D6F7BD0B2),
+                                  status); /* A5 */
+        fp3 = float64_to_floatx80(make_float64(0x3F811112302C712C),
+                                  status); /* A4 */
+        fp2 = floatx80_mul(fp2, fp1, status); /* S*A5 */
+        fp3 = floatx80_mul(fp3, fp1, status); /* S*A4 */
+        fp2 = floatx80_add(fp2, float64_to_floatx80(
+                           make_float64(0x3FA5555555554CC1), status),
+                           status); /* A3+S*A5 */
+        fp3 = floatx80_add(fp3, float64_to_floatx80(
+                           make_float64(0x3FC5555555554A54), status),
+                           status); /* A2+S*A4 */
+        fp2 = floatx80_mul(fp2, fp1, status); /* S*(A3+S*A5) */
+        fp3 = floatx80_mul(fp3, fp1, status); /* S*(A2+S*A4) */
+        fp2 = floatx80_add(fp2, float64_to_floatx80(
+                           make_float64(0x3FE0000000000000), status),
+                           status); /* A1+S*(A3+S*A5) */
+        fp3 = floatx80_mul(fp3, fp0, status); /* R*S*(A2+S*A4) */
+
+        fp2 = floatx80_mul(fp2, fp1, status); /* S*(A1+S*(A3+S*A5)) */
+        fp0 = floatx80_add(fp0, fp3, status); /* R+R*S*(A2+S*A4) */
+        fp0 = floatx80_add(fp0, fp2, status); /* EXP(R) - 1 */
+
+        fp0 = floatx80_mul(fp0, fact1, status);
+        fp0 = floatx80_add(fp0, fact2, status);
+        fp0 = floatx80_add(fp0, fact1, status);
+
+        status->float_rounding_mode = user_rnd_mode;
+        status->floatx80_rounding_precision = user_rnd_prec;
+
+        a = floatx80_mul(fp0, adjfact, status);
+
+        float_raise(float_flag_inexact, status);
+
+        return a;
+    }
+}
+
+/*----------------------------------------------------------------------------
+ | 10 to x
+ *----------------------------------------------------------------------------*/
+
+floatx80 floatx80_tentox(floatx80 a, float_status *status)
+{
+    flag aSign;
+    int32_t aExp;
+    uint64_t aSig;
+
+    int8_t user_rnd_mode, user_rnd_prec;
+
+    int32_t compact, n, j, l, m, m1;
+    floatx80 fp0, fp1, fp2, fp3, adjfact, fact1, fact2;
+
+    aSig = extractFloatx80Frac(a);
+    aExp = extractFloatx80Exp(a);
+    aSign = extractFloatx80Sign(a);
+
+    if (aExp == 0x7FFF) {
+        if ((uint64_t) (aSig << 1)) {
+            return propagateFloatx80NaNOneArg(a, status);
+        }
+        if (aSign) {
+            return packFloatx80(0, 0, 0);
+        }
+        return packFloatx80(0, floatx80_infinity.high,
+                            floatx80_infinity.low);
+    }
+
+    if (aExp == 0 && aSig == 0) {
+        return packFloatx80(0, one_exp, one_sig);
+    }
+
+    user_rnd_mode = status->float_rounding_mode;
+    user_rnd_prec = status->floatx80_rounding_precision;
+    status->float_rounding_mode = float_round_nearest_even;
+    status->floatx80_rounding_precision = 80;
+
+    fp0 = a;
+
+    compact = floatx80_make_compact(aExp, aSig);
+
+    if (compact < 0x3FB98000 || compact > 0x400B9B07) {
+        /* |X| > 16480 LOG2/LOG10 or |X| < 2^(-70) */
+        if (compact > 0x3FFF8000) { /* |X| > 16480 */
+            status->float_rounding_mode = user_rnd_mode;
+            status->floatx80_rounding_precision = user_rnd_prec;
+
+            if (aSign) {
+                return roundAndPackFloatx80(status->floatx80_rounding_precision,
+                                            0, -0x1000, aSig, 0, status);
+            } else {
+                return roundAndPackFloatx80(status->floatx80_rounding_precision,
+                                            0, 0x8000, aSig, 0, status);
+            }
+        } else { /* |X| < 2^(-70) */
+            status->float_rounding_mode = user_rnd_mode;
+            status->floatx80_rounding_precision = user_rnd_prec;
+
+            a = floatx80_add(fp0, float32_to_floatx80(
+                             make_float32(0x3F800000), status),
+                             status); /* 1 + X */
+
+            float_raise(float_flag_inexact, status);
+
+            return a;
+        }
+    } else { /* 2^(-70) <= |X| <= 16480 LOG 2 / LOG 10 */
+        fp1 = fp0; /* X */
+        fp1 = floatx80_mul(fp1, float64_to_floatx80(
+                           make_float64(0x406A934F0979A371),
+                           status), status); /* X*64*LOG10/LOG2 */
+        n = floatx80_to_int32(fp1, status); /* N=INT(X*64*LOG10/LOG2) */
+        fp1 = int32_to_floatx80(n, status);
+
+        j = n & 0x3F;
+        l = n / 64; /* NOTE: this is really arithmetic right shift by 6 */
+        if (n < 0 && j) {
+            /* arithmetic right shift is division and
+             * round towards minus infinity
+             */
+            l--;
+        }
+        m = l / 2; /* NOTE: this is really arithmetic right shift by 1 */
+        if (l < 0 && (l & 1)) {
+            /* arithmetic right shift is division and
+             * round towards minus infinity
+             */
+            m--;
+        }
+        m1 = l - m;
+        m1 += 0x3FFF; /* ADJFACT IS 2^(M') */
+
+        adjfact = packFloatx80(0, m1, one_sig);
+        fact1 = exp2_tbl[j];
+        fact1.high += m;
+        fact2.high = exp2_tbl2[j] >> 16;
+        fact2.high += m;
+        fact2.low = (uint64_t)(exp2_tbl2[j] & 0xFFFF);
+        fact2.low <<= 48;
+
+        fp2 = fp1; /* N */
+        fp1 = floatx80_mul(fp1, float64_to_floatx80(
+                           make_float64(0x3F734413509F8000), status),
+                           status); /* N*(LOG2/64LOG10)_LEAD */
+        fp3 = packFloatx80(1, 0x3FCD, LIT64(0xC0219DC1DA994FD2));
+        fp2 = floatx80_mul(fp2, fp3, status); /* N*(LOG2/64LOG10)_TRAIL */
+        fp0 = floatx80_sub(fp0, fp1, status); /* X - N L_LEAD */
+        fp0 = floatx80_sub(fp0, fp2, status); /* X - N L_TRAIL */
+        fp2 = packFloatx80(0, 0x4000, LIT64(0x935D8DDDAAA8AC17)); /* LOG10 */
+        fp0 = floatx80_mul(fp0, fp2, status); /* R */
+
+        /* EXPR */
+        fp1 = floatx80_mul(fp0, fp0, status); /* S = R*R */
+        fp2 = float64_to_floatx80(make_float64(0x3F56C16D6F7BD0B2),
+                                  status); /* A5 */
+        fp3 = float64_to_floatx80(make_float64(0x3F811112302C712C),
+                                  status); /* A4 */
+        fp2 = floatx80_mul(fp2, fp1, status); /* S*A5 */
+        fp3 = floatx80_mul(fp3, fp1, status); /* S*A4 */
+        fp2 = floatx80_add(fp2, float64_to_floatx80(
+                           make_float64(0x3FA5555555554CC1), status),
+                           status); /* A3+S*A5 */
+        fp3 = floatx80_add(fp3, float64_to_floatx80(
+                           make_float64(0x3FC5555555554A54), status),
+                           status); /* A2+S*A4 */
+        fp2 = floatx80_mul(fp2, fp1, status); /* S*(A3+S*A5) */
+        fp3 = floatx80_mul(fp3, fp1, status); /* S*(A2+S*A4) */
+        fp2 = floatx80_add(fp2, float64_to_floatx80(
+                           make_float64(0x3FE0000000000000), status),
+                           status); /* A1+S*(A3+S*A5) */
+        fp3 = floatx80_mul(fp3, fp0, status); /* R*S*(A2+S*A4) */
+
+        fp2 = floatx80_mul(fp2, fp1, status); /* S*(A1+S*(A3+S*A5)) */
+        fp0 = floatx80_add(fp0, fp3, status); /* R+R*S*(A2+S*A4) */
+        fp0 = floatx80_add(fp0, fp2, status); /* EXP(R) - 1 */
+
+        fp0 = floatx80_mul(fp0, fact1, status);
+        fp0 = floatx80_add(fp0, fact2, status);
+        fp0 = floatx80_add(fp0, fact1, status);
+
+        status->float_rounding_mode = user_rnd_mode;
+        status->floatx80_rounding_precision = user_rnd_prec;
+
+        a = floatx80_mul(fp0, adjfact, status);
+
+        float_raise(float_flag_inexact, status);
+
+        return a;
+    }
+}
diff --git a/target/m68k/softfloat.h b/target/m68k/softfloat.h
index 78fbc0cd0c..d28e49fe9f 100644
--- a/target/m68k/softfloat.h
+++ b/target/m68k/softfloat.h
@@ -26,4 +26,12 @@ floatx80 floatx80_mod(floatx80 a, floatx80 b, float_status *status);
 floatx80 floatx80_getman(floatx80 a, float_status *status);
 floatx80 floatx80_getexp(floatx80 a, float_status *status);
 floatx80 floatx80_scale(floatx80 a, floatx80 b, float_status *status);
+floatx80 floatx80_move(floatx80 a, float_status *status);
+floatx80 floatx80_lognp1(floatx80 a, float_status *status);
+floatx80 floatx80_logn(floatx80 a, float_status *status);
+floatx80 floatx80_log10(floatx80 a, float_status *status);
+floatx80 floatx80_log2(floatx80 a, float_status *status);
+floatx80 floatx80_etox(floatx80 a, float_status *status);
+floatx80 floatx80_twotox(floatx80 a, float_status *status);
+floatx80 floatx80_tentox(floatx80 a, float_status *status);
 #endif
diff --git a/target/m68k/softfloat_fpsp_tables.h b/target/m68k/softfloat_fpsp_tables.h
new file mode 100644
index 0000000000..dd76dc0373
--- /dev/null
+++ b/target/m68k/softfloat_fpsp_tables.h
@@ -0,0 +1,374 @@
+/*
+ * Ported from a work by Andreas Grabher for Previous, NeXT Computer Emulator,
+ * derived from NetBSD M68040 FPSP functions,
+ * derived from release 2a of the SoftFloat IEC/IEEE Floating-point Arithmetic
+ * Package. Those parts of the code (and some later contributions) are
+ * provided under that license, as detailed below.
+ * It has subsequently been modified by contributors to the QEMU Project,
+ * so some portions are provided under:
+ *  the SoftFloat-2a license
+ *  the BSD license
+ *  GPL-v2-or-later
+ *
+ * Any future contributions to this file will be taken to be licensed under
+ * the Softfloat-2a license unless specifically indicated otherwise.
+ */
+
+/* Portions of this work are licensed under the terms of the GNU GPL,
+ * version 2 or later. See the COPYING file in the top-level directory.
+ */
+
+#ifndef TARGET_M68K_SOFTFLOAT_FPSP_TABLES_H
+#define TARGET_M68K_SOFTFLOAT_FPSP_TABLES_H
+
+static const floatx80 log_tbl[128] = {
+    make_floatx80_init(0x3FFE, 0xFE03F80FE03F80FE),
+    make_floatx80_init(0x3FF7, 0xFF015358833C47E2),
+    make_floatx80_init(0x3FFE, 0xFA232CF252138AC0),
+    make_floatx80_init(0x3FF9, 0xBDC8D83EAD88D549),
+    make_floatx80_init(0x3FFE, 0xF6603D980F6603DA),
+    make_floatx80_init(0x3FFA, 0x9CF43DCFF5EAFD48),
+    make_floatx80_init(0x3FFE, 0xF2B9D6480F2B9D65),
+    make_floatx80_init(0x3FFA, 0xDA16EB88CB8DF614),
+    make_floatx80_init(0x3FFE, 0xEF2EB71FC4345238),
+    make_floatx80_init(0x3FFB, 0x8B29B7751BD70743),
+    make_floatx80_init(0x3FFE, 0xEBBDB2A5C1619C8C),
+    make_floatx80_init(0x3FFB, 0xA8D839F830C1FB49),
+    make_floatx80_init(0x3FFE, 0xE865AC7B7603A197),
+    make_floatx80_init(0x3FFB, 0xC61A2EB18CD907AD),
+    make_floatx80_init(0x3FFE, 0xE525982AF70C880E),
+    make_floatx80_init(0x3FFB, 0xE2F2A47ADE3A18AF),
+    make_floatx80_init(0x3FFE, 0xE1FC780E1FC780E2),
+    make_floatx80_init(0x3FFB, 0xFF64898EDF55D551),
+    make_floatx80_init(0x3FFE, 0xDEE95C4CA037BA57),
+    make_floatx80_init(0x3FFC, 0x8DB956A97B3D0148),
+    make_floatx80_init(0x3FFE, 0xDBEB61EED19C5958),
+    make_floatx80_init(0x3FFC, 0x9B8FE100F47BA1DE),
+    make_floatx80_init(0x3FFE, 0xD901B2036406C80E),
+    make_floatx80_init(0x3FFC, 0xA9372F1D0DA1BD17),
+    make_floatx80_init(0x3FFE, 0xD62B80D62B80D62C),
+    make_floatx80_init(0x3FFC, 0xB6B07F38CE90E46B),
+    make_floatx80_init(0x3FFE, 0xD3680D3680D3680D),
+    make_floatx80_init(0x3FFC, 0xC3FD032906488481),
+    make_floatx80_init(0x3FFE, 0xD0B69FCBD2580D0B),
+    make_floatx80_init(0x3FFC, 0xD11DE0FF15AB18CA),
+    make_floatx80_init(0x3FFE, 0xCE168A7725080CE1),
+    make_floatx80_init(0x3FFC, 0xDE1433A16C66B150),
+    make_floatx80_init(0x3FFE, 0xCB8727C065C393E0),
+    make_floatx80_init(0x3FFC, 0xEAE10B5A7DDC8ADD),
+    make_floatx80_init(0x3FFE, 0xC907DA4E871146AD),
+    make_floatx80_init(0x3FFC, 0xF7856E5EE2C9B291),
+    make_floatx80_init(0x3FFE, 0xC6980C6980C6980C),
+    make_floatx80_init(0x3FFD, 0x82012CA5A68206D7),
+    make_floatx80_init(0x3FFE, 0xC4372F855D824CA6),
+    make_floatx80_init(0x3FFD, 0x882C5FCD7256A8C5),
+    make_floatx80_init(0x3FFE, 0xC1E4BBD595F6E947),
+    make_floatx80_init(0x3FFD, 0x8E44C60B4CCFD7DE),
+    make_floatx80_init(0x3FFE, 0xBFA02FE80BFA02FF),
+    make_floatx80_init(0x3FFD, 0x944AD09EF4351AF6),
+    make_floatx80_init(0x3FFE, 0xBD69104707661AA3),
+    make_floatx80_init(0x3FFD, 0x9A3EECD4C3EAA6B2),
+    make_floatx80_init(0x3FFE, 0xBB3EE721A54D880C),
+    make_floatx80_init(0x3FFD, 0xA0218434353F1DE8),
+    make_floatx80_init(0x3FFE, 0xB92143FA36F5E02E),
+    make_floatx80_init(0x3FFD, 0xA5F2FCABBBC506DA),
+    make_floatx80_init(0x3FFE, 0xB70FBB5A19BE3659),
+    make_floatx80_init(0x3FFD, 0xABB3B8BA2AD362A5),
+    make_floatx80_init(0x3FFE, 0xB509E68A9B94821F),
+    make_floatx80_init(0x3FFD, 0xB1641795CE3CA97B),
+    make_floatx80_init(0x3FFE, 0xB30F63528917C80B),
+    make_floatx80_init(0x3FFD, 0xB70475515D0F1C61),
+    make_floatx80_init(0x3FFE, 0xB11FD3B80B11FD3C),
+    make_floatx80_init(0x3FFD, 0xBC952AFEEA3D13E1),
+    make_floatx80_init(0x3FFE, 0xAF3ADDC680AF3ADE),
+    make_floatx80_init(0x3FFD, 0xC2168ED0F458BA4A),
+    make_floatx80_init(0x3FFE, 0xAD602B580AD602B6),
+    make_floatx80_init(0x3FFD, 0xC788F439B3163BF1),
+    make_floatx80_init(0x3FFE, 0xAB8F69E28359CD11),
+    make_floatx80_init(0x3FFD, 0xCCECAC08BF04565D),
+    make_floatx80_init(0x3FFE, 0xA9C84A47A07F5638),
+    make_floatx80_init(0x3FFD, 0xD24204872DD85160),
+    make_floatx80_init(0x3FFE, 0xA80A80A80A80A80B),
+    make_floatx80_init(0x3FFD, 0xD78949923BC3588A),
+    make_floatx80_init(0x3FFE, 0xA655C4392D7B73A8),
+    make_floatx80_init(0x3FFD, 0xDCC2C4B49887DACC),
+    make_floatx80_init(0x3FFE, 0xA4A9CF1D96833751),
+    make_floatx80_init(0x3FFD, 0xE1EEBD3E6D6A6B9E),
+    make_floatx80_init(0x3FFE, 0xA3065E3FAE7CD0E0),
+    make_floatx80_init(0x3FFD, 0xE70D785C2F9F5BDC),
+    make_floatx80_init(0x3FFE, 0xA16B312EA8FC377D),
+    make_floatx80_init(0x3FFD, 0xEC1F392C5179F283),
+    make_floatx80_init(0x3FFE, 0x9FD809FD809FD80A),
+    make_floatx80_init(0x3FFD, 0xF12440D3E36130E6),
+    make_floatx80_init(0x3FFE, 0x9E4CAD23DD5F3A20),
+    make_floatx80_init(0x3FFD, 0xF61CCE92346600BB),
+    make_floatx80_init(0x3FFE, 0x9CC8E160C3FB19B9),
+    make_floatx80_init(0x3FFD, 0xFB091FD38145630A),
+    make_floatx80_init(0x3FFE, 0x9B4C6F9EF03A3CAA),
+    make_floatx80_init(0x3FFD, 0xFFE97042BFA4C2AD),
+    make_floatx80_init(0x3FFE, 0x99D722DABDE58F06),
+    make_floatx80_init(0x3FFE, 0x825EFCED49369330),
+    make_floatx80_init(0x3FFE, 0x9868C809868C8098),
+    make_floatx80_init(0x3FFE, 0x84C37A7AB9A905C9),
+    make_floatx80_init(0x3FFE, 0x97012E025C04B809),
+    make_floatx80_init(0x3FFE, 0x87224C2E8E645FB7),
+    make_floatx80_init(0x3FFE, 0x95A02568095A0257),
+    make_floatx80_init(0x3FFE, 0x897B8CAC9F7DE298),
+    make_floatx80_init(0x3FFE, 0x9445809445809446),
+    make_floatx80_init(0x3FFE, 0x8BCF55DEC4CD05FE),
+    make_floatx80_init(0x3FFE, 0x92F113840497889C),
+    make_floatx80_init(0x3FFE, 0x8E1DC0FB89E125E5),
+    make_floatx80_init(0x3FFE, 0x91A2B3C4D5E6F809),
+    make_floatx80_init(0x3FFE, 0x9066E68C955B6C9B),
+    make_floatx80_init(0x3FFE, 0x905A38633E06C43B),
+    make_floatx80_init(0x3FFE, 0x92AADE74C7BE59E0),
+    make_floatx80_init(0x3FFE, 0x8F1779D9FDC3A219),
+    make_floatx80_init(0x3FFE, 0x94E9BFF615845643),
+    make_floatx80_init(0x3FFE, 0x8DDA520237694809),
+    make_floatx80_init(0x3FFE, 0x9723A1B720134203),
+    make_floatx80_init(0x3FFE, 0x8CA29C046514E023),
+    make_floatx80_init(0x3FFE, 0x995899C890EB8990),
+    make_floatx80_init(0x3FFE, 0x8B70344A139BC75A),
+    make_floatx80_init(0x3FFE, 0x9B88BDAA3A3DAE2F),
+    make_floatx80_init(0x3FFE, 0x8A42F8705669DB46),
+    make_floatx80_init(0x3FFE, 0x9DB4224FFFE1157C),
+    make_floatx80_init(0x3FFE, 0x891AC73AE9819B50),
+    make_floatx80_init(0x3FFE, 0x9FDADC268B7A12DA),
+    make_floatx80_init(0x3FFE, 0x87F78087F78087F8),
+    make_floatx80_init(0x3FFE, 0xA1FCFF17CE733BD4),
+    make_floatx80_init(0x3FFE, 0x86D905447A34ACC6),
+    make_floatx80_init(0x3FFE, 0xA41A9E8F5446FB9F),
+    make_floatx80_init(0x3FFE, 0x85BF37612CEE3C9B),
+    make_floatx80_init(0x3FFE, 0xA633CD7E6771CD8B),
+    make_floatx80_init(0x3FFE, 0x84A9F9C8084A9F9D),
+    make_floatx80_init(0x3FFE, 0xA8489E600B435A5E),
+    make_floatx80_init(0x3FFE, 0x839930523FBE3368),
+    make_floatx80_init(0x3FFE, 0xAA59233CCCA4BD49),
+    make_floatx80_init(0x3FFE, 0x828CBFBEB9A020A3),
+    make_floatx80_init(0x3FFE, 0xAC656DAE6BCC4985),
+    make_floatx80_init(0x3FFE, 0x81848DA8FAF0D277),
+    make_floatx80_init(0x3FFE, 0xAE6D8EE360BB2468),
+    make_floatx80_init(0x3FFE, 0x8080808080808081),
+    make_floatx80_init(0x3FFE, 0xB07197A23C46C654)
+};
+
+static const floatx80 exp_tbl[64] = {
+    make_floatx80_init(0x3FFF, 0x8000000000000000),
+    make_floatx80_init(0x3FFF, 0x8164D1F3BC030774),
+    make_floatx80_init(0x3FFF, 0x82CD8698AC2BA1D8),
+    make_floatx80_init(0x3FFF, 0x843A28C3ACDE4048),
+    make_floatx80_init(0x3FFF, 0x85AAC367CC487B14),
+    make_floatx80_init(0x3FFF, 0x871F61969E8D1010),
+    make_floatx80_init(0x3FFF, 0x88980E8092DA8528),
+    make_floatx80_init(0x3FFF, 0x8A14D575496EFD9C),
+    make_floatx80_init(0x3FFF, 0x8B95C1E3EA8BD6E8),
+    make_floatx80_init(0x3FFF, 0x8D1ADF5B7E5BA9E4),
+    make_floatx80_init(0x3FFF, 0x8EA4398B45CD53C0),
+    make_floatx80_init(0x3FFF, 0x9031DC431466B1DC),
+    make_floatx80_init(0x3FFF, 0x91C3D373AB11C338),
+    make_floatx80_init(0x3FFF, 0x935A2B2F13E6E92C),
+    make_floatx80_init(0x3FFF, 0x94F4EFA8FEF70960),
+    make_floatx80_init(0x3FFF, 0x96942D3720185A00),
+    make_floatx80_init(0x3FFF, 0x9837F0518DB8A970),
+    make_floatx80_init(0x3FFF, 0x99E0459320B7FA64),
+    make_floatx80_init(0x3FFF, 0x9B8D39B9D54E5538),
+    make_floatx80_init(0x3FFF, 0x9D3ED9A72CFFB750),
+    make_floatx80_init(0x3FFF, 0x9EF5326091A111AC),
+    make_floatx80_init(0x3FFF, 0xA0B0510FB9714FC4),
+    make_floatx80_init(0x3FFF, 0xA27043030C496818),
+    make_floatx80_init(0x3FFF, 0xA43515AE09E680A0),
+    make_floatx80_init(0x3FFF, 0xA5FED6A9B15138EC),
+    make_floatx80_init(0x3FFF, 0xA7CD93B4E9653568),
+    make_floatx80_init(0x3FFF, 0xA9A15AB4EA7C0EF8),
+    make_floatx80_init(0x3FFF, 0xAB7A39B5A93ED338),
+    make_floatx80_init(0x3FFF, 0xAD583EEA42A14AC8),
+    make_floatx80_init(0x3FFF, 0xAF3B78AD690A4374),
+    make_floatx80_init(0x3FFF, 0xB123F581D2AC2590),
+    make_floatx80_init(0x3FFF, 0xB311C412A9112488),
+    make_floatx80_init(0x3FFF, 0xB504F333F9DE6484),
+    make_floatx80_init(0x3FFF, 0xB6FD91E328D17790),
+    make_floatx80_init(0x3FFF, 0xB8FBAF4762FB9EE8),
+    make_floatx80_init(0x3FFF, 0xBAFF5AB2133E45FC),
+    make_floatx80_init(0x3FFF, 0xBD08A39F580C36C0),
+    make_floatx80_init(0x3FFF, 0xBF1799B67A731084),
+    make_floatx80_init(0x3FFF, 0xC12C4CCA66709458),
+    make_floatx80_init(0x3FFF, 0xC346CCDA24976408),
+    make_floatx80_init(0x3FFF, 0xC5672A115506DADC),
+    make_floatx80_init(0x3FFF, 0xC78D74C8ABB9B15C),
+    make_floatx80_init(0x3FFF, 0xC9B9BD866E2F27A4),
+    make_floatx80_init(0x3FFF, 0xCBEC14FEF2727C5C),
+    make_floatx80_init(0x3FFF, 0xCE248C151F8480E4),
+    make_floatx80_init(0x3FFF, 0xD06333DAEF2B2594),
+    make_floatx80_init(0x3FFF, 0xD2A81D91F12AE45C),
+    make_floatx80_init(0x3FFF, 0xD4F35AABCFEDFA20),
+    make_floatx80_init(0x3FFF, 0xD744FCCAD69D6AF4),
+    make_floatx80_init(0x3FFF, 0xD99D15C278AFD7B4),
+    make_floatx80_init(0x3FFF, 0xDBFBB797DAF23754),
+    make_floatx80_init(0x3FFF, 0xDE60F4825E0E9124),
+    make_floatx80_init(0x3FFF, 0xE0CCDEEC2A94E110),
+    make_floatx80_init(0x3FFF, 0xE33F8972BE8A5A50),
+    make_floatx80_init(0x3FFF, 0xE5B906E77C8348A8),
+    make_floatx80_init(0x3FFF, 0xE8396A503C4BDC68),
+    make_floatx80_init(0x3FFF, 0xEAC0C6E7DD243930),
+    make_floatx80_init(0x3FFF, 0xED4F301ED9942B84),
+    make_floatx80_init(0x3FFF, 0xEFE4B99BDCDAF5CC),
+    make_floatx80_init(0x3FFF, 0xF281773C59FFB138),
+    make_floatx80_init(0x3FFF, 0xF5257D152486CC2C),
+    make_floatx80_init(0x3FFF, 0xF7D0DF730AD13BB8),
+    make_floatx80_init(0x3FFF, 0xFA83B2DB722A033C),
+    make_floatx80_init(0x3FFF, 0xFD3E0C0CF486C174)
+};
+
+static const float32 exp_tbl2[64] = {
+    const_float32(0x00000000),
+    const_float32(0x9F841A9B),
+    const_float32(0x9FC1D5B9),
+    const_float32(0xA0728369),
+    const_float32(0x1FC5C95C),
+    const_float32(0x1EE85C9F),
+    const_float32(0x9FA20729),
+    const_float32(0xA07BF9AF),
+    const_float32(0xA0020DCF),
+    const_float32(0x205A63DA),
+    const_float32(0x1EB70051),
+    const_float32(0x1F6EB029),
+    const_float32(0xA0781494),
+    const_float32(0x9EB319B0),
+    const_float32(0x2017457D),
+    const_float32(0x1F11D537),
+    const_float32(0x9FB952DD),
+    const_float32(0x1FE43087),
+    const_float32(0x1FA2A818),
+    const_float32(0x1FDE494D),
+    const_float32(0x20504890),
+    const_float32(0xA073691C),
+    const_float32(0x1F9B7A05),
+    const_float32(0xA0797126),
+    const_float32(0xA071A140),
+    const_float32(0x204F62DA),
+    const_float32(0x1F283C4A),
+    const_float32(0x9F9A7FDC),
+    const_float32(0xA05B3FAC),
+    const_float32(0x1FDF2610),
+    const_float32(0x9F705F90),
+    const_float32(0x201F678A),
+    const_float32(0x1F32FB13),
+    const_float32(0x20038B30),
+    const_float32(0x200DC3CC),
+    const_float32(0x9F8B2AE6),
+    const_float32(0xA02BBF70),
+    const_float32(0xA00BF518),
+    const_float32(0xA041DD41),
+    const_float32(0x9FDF137B),
+    const_float32(0x201F1568),
+    const_float32(0x1FC13A2E),
+    const_float32(0xA03F8F03),
+    const_float32(0x1FF4907D),
+    const_float32(0x9E6E53E4),
+    const_float32(0x1FD6D45C),
+    const_float32(0xA076EDB9),
+    const_float32(0x9FA6DE21),
+    const_float32(0x1EE69A2F),
+    const_float32(0x207F439F),
+    const_float32(0x201EC207),
+    const_float32(0x9E8BE175),
+    const_float32(0x20032C4B),
+    const_float32(0x2004DFF5),
+    const_float32(0x1E72F47A),
+    const_float32(0x1F722F22),
+    const_float32(0xA017E945),
+    const_float32(0x1F401A5B),
+    const_float32(0x9FB9A9E3),
+    const_float32(0x20744C05),
+    const_float32(0x1F773A19),
+    const_float32(0x1FFE90D5),
+    const_float32(0xA041ED22),
+    const_float32(0x1F853F3A),
+};
+
+static const floatx80 exp2_tbl[64] = {
+    make_floatx80_init(0x3FFF, 0x8000000000000000),
+    make_floatx80_init(0x3FFF, 0x8164D1F3BC030773),
+    make_floatx80_init(0x3FFF, 0x82CD8698AC2BA1D7),
+    make_floatx80_init(0x3FFF, 0x843A28C3ACDE4046),
+    make_floatx80_init(0x3FFF, 0x85AAC367CC487B15),
+    make_floatx80_init(0x3FFF, 0x871F61969E8D1010),
+    make_floatx80_init(0x3FFF, 0x88980E8092DA8527),
+    make_floatx80_init(0x3FFF, 0x8A14D575496EFD9A),
+    make_floatx80_init(0x3FFF, 0x8B95C1E3EA8BD6E7),
+    make_floatx80_init(0x3FFF, 0x8D1ADF5B7E5BA9E6),
+    make_floatx80_init(0x3FFF, 0x8EA4398B45CD53C0),
+    make_floatx80_init(0x3FFF, 0x9031DC431466B1DC),
+    make_floatx80_init(0x3FFF, 0x91C3D373AB11C336),
+    make_floatx80_init(0x3FFF, 0x935A2B2F13E6E92C),
+    make_floatx80_init(0x3FFF, 0x94F4EFA8FEF70961),
+    make_floatx80_init(0x3FFF, 0x96942D3720185A00),
+    make_floatx80_init(0x3FFF, 0x9837F0518DB8A96F),
+    make_floatx80_init(0x3FFF, 0x99E0459320B7FA65),
+    make_floatx80_init(0x3FFF, 0x9B8D39B9D54E5539),
+    make_floatx80_init(0x3FFF, 0x9D3ED9A72CFFB751),
+    make_floatx80_init(0x3FFF, 0x9EF5326091A111AE),
+    make_floatx80_init(0x3FFF, 0xA0B0510FB9714FC2),
+    make_floatx80_init(0x3FFF, 0xA27043030C496819),
+    make_floatx80_init(0x3FFF, 0xA43515AE09E6809E),
+    make_floatx80_init(0x3FFF, 0xA5FED6A9B15138EA),
+    make_floatx80_init(0x3FFF, 0xA7CD93B4E965356A),
+    make_floatx80_init(0x3FFF, 0xA9A15AB4EA7C0EF8),
+    make_floatx80_init(0x3FFF, 0xAB7A39B5A93ED337),
+    make_floatx80_init(0x3FFF, 0xAD583EEA42A14AC6),
+    make_floatx80_init(0x3FFF, 0xAF3B78AD690A4375),
+    make_floatx80_init(0x3FFF, 0xB123F581D2AC2590),
+    make_floatx80_init(0x3FFF, 0xB311C412A9112489),
+    make_floatx80_init(0x3FFF, 0xB504F333F9DE6484),
+    make_floatx80_init(0x3FFF, 0xB6FD91E328D17791),
+    make_floatx80_init(0x3FFF, 0xB8FBAF4762FB9EE9),
+    make_floatx80_init(0x3FFF, 0xBAFF5AB2133E45FB),
+    make_floatx80_init(0x3FFF, 0xBD08A39F580C36BF),
+    make_floatx80_init(0x3FFF, 0xBF1799B67A731083),
+    make_floatx80_init(0x3FFF, 0xC12C4CCA66709456),
+    make_floatx80_init(0x3FFF, 0xC346CCDA24976407),
+    make_floatx80_init(0x3FFF, 0xC5672A115506DADD),
+    make_floatx80_init(0x3FFF, 0xC78D74C8ABB9B15D),
+    make_floatx80_init(0x3FFF, 0xC9B9BD866E2F27A3),
+    make_floatx80_init(0x3FFF, 0xCBEC14FEF2727C5D),
+    make_floatx80_init(0x3FFF, 0xCE248C151F8480E4),
+    make_floatx80_init(0x3FFF, 0xD06333DAEF2B2595),
+    make_floatx80_init(0x3FFF, 0xD2A81D91F12AE45A),
+    make_floatx80_init(0x3FFF, 0xD4F35AABCFEDFA1F),
+    make_floatx80_init(0x3FFF, 0xD744FCCAD69D6AF4),
+    make_floatx80_init(0x3FFF, 0xD99D15C278AFD7B6),
+    make_floatx80_init(0x3FFF, 0xDBFBB797DAF23755),
+    make_floatx80_init(0x3FFF, 0xDE60F4825E0E9124),
+    make_floatx80_init(0x3FFF, 0xE0CCDEEC2A94E111),
+    make_floatx80_init(0x3FFF, 0xE33F8972BE8A5A51),
+    make_floatx80_init(0x3FFF, 0xE5B906E77C8348A8),
+    make_floatx80_init(0x3FFF, 0xE8396A503C4BDC68),
+    make_floatx80_init(0x3FFF, 0xEAC0C6E7DD24392F),
+    make_floatx80_init(0x3FFF, 0xED4F301ED9942B84),
+    make_floatx80_init(0x3FFF, 0xEFE4B99BDCDAF5CB),
+    make_floatx80_init(0x3FFF, 0xF281773C59FFB13A),
+    make_floatx80_init(0x3FFF, 0xF5257D152486CC2C),
+    make_floatx80_init(0x3FFF, 0xF7D0DF730AD13BB9),
+    make_floatx80_init(0x3FFF, 0xFA83B2DB722A033A),
+    make_floatx80_init(0x3FFF, 0xFD3E0C0CF486C175)
+};
+
+static const uint32_t exp2_tbl2[64] = {
+    0x3F738000, 0x3FBEF7CA, 0x3FBDF8A9, 0x3FBCD7C9,
+    0xBFBDE8DA, 0x3FBDE85C, 0x3FBEBBF1, 0x3FBB80CA,
+    0xBFBA8373, 0xBFBE9670, 0x3FBDB700, 0x3FBEEEB0,
+    0x3FBBFD6D, 0xBFBDB319, 0x3FBDBA2B, 0x3FBE91D5,
+    0x3FBE8D5A, 0xBFBCDE7B, 0xBFBEBAAF, 0xBFBD86DA,
+    0xBFBEBEDD, 0x3FBCC96E, 0xBFBEC90B, 0x3FBBD1DB,
+    0x3FBCE5EB, 0xBFBEC274, 0x3FBEA83C, 0x3FBECB00,
+    0x3FBE9301, 0xBFBD8367, 0xBFBEF05F, 0x3FBDFB3C,
+    0x3FBEB2FB, 0x3FBAE2CB, 0x3FBCDC3C, 0x3FBEE9AA,
+    0xBFBEAEFD, 0xBFBCBF51, 0x3FBEF88A, 0x3FBD83B2,
+    0x3FBDF8AB, 0xBFBDFB17, 0xBFBEFE3C, 0xBFBBB6F8,
+    0xBFBCEE53, 0xBFBDA4AE, 0x3FBC9124, 0x3FBEB243,
+    0x3FBDE69A, 0xBFB8BC61, 0x3FBDF610, 0xBFBD8BE1,
+    0x3FBACB12, 0x3FBB9BFE, 0x3FBCF2F4, 0x3FBEF22F,
+    0xBFBDBF4A, 0x3FBEC01A, 0x3FBE8CAC, 0xBFBCBB3F,
+    0x3FBEF73A, 0xBFB8B795, 0x3FBEF84B, 0xBFBEF581
+};
+#endif
diff --git a/target/m68k/translate.c b/target/m68k/translate.c
index dbb24f8d84..6d5bde0777 100644
--- a/target/m68k/translate.c
+++ b/target/m68k/translate.c
@@ -5054,6 +5054,27 @@ DISAS_INSN(fpu)
     case 0x45: /* fdsqrt */
         gen_helper_fdsqrt(cpu_env, cpu_dest, cpu_src);
         break;
+    case 0x06: /* flognp1 */
+        gen_helper_flognp1(cpu_env, cpu_dest, cpu_src);
+        break;
+    case 0x10: /* fetox */
+        gen_helper_fetox(cpu_env, cpu_dest, cpu_src);
+        break;
+    case 0x11: /* ftwotox */
+        gen_helper_ftwotox(cpu_env, cpu_dest, cpu_src);
+        break;
+    case 0x12: /* ftentox */
+        gen_helper_ftentox(cpu_env, cpu_dest, cpu_src);
+        break;
+    case 0x14: /* flogn */
+        gen_helper_flogn(cpu_env, cpu_dest, cpu_src);
+        break;
+    case 0x15: /* flog10 */
+        gen_helper_flog10(cpu_env, cpu_dest, cpu_src);
+        break;
+    case 0x16: /* flog2 */
+        gen_helper_flog2(cpu_env, cpu_dest, cpu_src);
+        break;
     case 0x18: /* fabs */
         gen_helper_fabs(cpu_env, cpu_dest, cpu_src);
         break;