target-tricore: Add instructions of RR opcode format, that have 0xb as the first opcode

Add instructions of RR opcode format, that have 0xb as the first opcode.
Add helper functions, for hword and byte arithmetics:
    * add_h_ssov/suov: Add two halfword and saturate on overflow.
    * sub_h_ssov/suov: Sub two halfword and saturate on overflow.
    * absdif_h_ssov: Compute absolute difference for halfwords and saturate on overflow.
    * abs_h_ssov/suov: Compute absolute value for two halfwords and saturate on overflow.
    * abs_b/h: Compute absolute value for four/two bytes/halfwords
    * absdif_b/h: Compute absolute difference for four/two bytes/halfwords
    * add_b/h: Add four/two bytes/halfwords.
    * sub_b/h: Sub four/two bytes/halfwords.
    * eq_b/h: Compare four/two bytes/halfwords with four/two bytes/halfwords on
              equality and set all bits of to either one ore zero.
    * eqany_b/h: Compare four/two bytes/halfwords with four/two bytes/halfwords on equality.
    * lt_b/bu/h/hu: Compare four/two bytes/halfwords with four/two bytes/halfwords
                    on less than signed and unsigned.
    * max_b/bu/h/hu: Calculate max for four/two bytes/halfwords signed and unsigned.
    * min_b/bu/h/hu: Calculate min for four/two bytes/halfwords signed and unsigned.
Add helper function abs_ssov, that computes the absolute value for a 32 bit integer and saturates on overflow.
Add microcode generator functions:
    * gen_sub_CC: Caluclates sub and sets the carry bit.
    * gen_subc_CC: Caluclates sub and carry and sets the carry bit
    * gen_abs: Compute absolute value for a 32 bit integer.
    * gen_cond_w: Compares two 32 bit values on cond and sets result either zero or all bits one.

OPC2_32_RR_MIN switched with OPC2_32_RR_MIN_U.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>

1 files changed, 525 insertions, 0 deletions

diff --git a/target-tricore/op_helper.c b/target-tricore/op_helper.c
index f1a8d16d30..26e01ed1b9 100644
--- a/target-tricore/op_helper.c
+++ b/target-tricore/op_helper.c
@@ -103,6 +103,66 @@ static uint32_t suov32(CPUTriCoreState *env, int64_t arg)
     return ret;
 }
 
+static uint32_t ssov16(CPUTriCoreState *env, int32_t hw0, int32_t hw1)
+{
+    int32_t max_pos = INT16_MAX;
+    int32_t max_neg = INT16_MIN;
+    int32_t av0, av1;
+
+    env->PSW_USB_V = 0;
+    av0 = hw0 ^ hw0 * 2u;
+    if (hw0 > max_pos) {
+        env->PSW_USB_V = (1 << 31);
+        hw0 = max_pos;
+    } else if (hw0 < max_neg) {
+        env->PSW_USB_V = (1 << 31);
+        hw0 = max_neg;
+    }
+
+    av1 = hw1 ^ hw1 * 2u;
+    if (hw1 > max_pos) {
+        env->PSW_USB_V = (1 << 31);
+        hw1 = max_pos;
+    } else if (hw1 < max_neg) {
+        env->PSW_USB_V = (1 << 31);
+        hw1 = max_neg;
+    }
+
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = (av0 | av1) << 16;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+    return (hw0 & 0xffff) | (hw1 << 16);
+}
+
+static uint32_t suov16(CPUTriCoreState *env, int32_t hw0, int32_t hw1)
+{
+    int32_t max_pos = UINT16_MAX;
+    int32_t av0, av1;
+
+    env->PSW_USB_V = 0;
+    av0 = hw0 ^ hw0 * 2u;
+    if (hw0 > max_pos) {
+        env->PSW_USB_V = (1 << 31);
+        hw0 = max_pos;
+    } else if (hw0 < 0) {
+        env->PSW_USB_V = (1 << 31);
+        hw0 = 0;
+    }
+
+    av1 = hw1 ^ hw1 * 2u;
+    if (hw1 > max_pos) {
+        env->PSW_USB_V = (1 << 31);
+        hw1 = max_pos;
+    } else if (hw1 < 0) {
+        env->PSW_USB_V = (1 << 31);
+        hw1 = 0;
+    }
+
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = (av0 | av1) << 16;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+    return (hw0 & 0xffff) | (hw1 << 16);
+}
 
 target_ulong helper_add_ssov(CPUTriCoreState *env, target_ulong r1,
                              target_ulong r2)
@@ -113,6 +173,16 @@ target_ulong helper_add_ssov(CPUTriCoreState *env, target_ulong r1,
     return ssov32(env, result);
 }
 
+target_ulong helper_add_h_ssov(CPUTriCoreState *env, target_ulong r1,
+                               target_ulong r2)
+{
+    int32_t ret_hw0, ret_hw1;
+
+    ret_hw0 = sextract32(r1, 0, 16) + sextract32(r2, 0, 16);
+    ret_hw1 = sextract32(r1, 16, 16) + sextract32(r2, 16, 16);
+    return ssov16(env, ret_hw0, ret_hw1);
+}
+
 target_ulong helper_add_suov(CPUTriCoreState *env, target_ulong r1,
                              target_ulong r2)
 {
@@ -122,6 +192,16 @@ target_ulong helper_add_suov(CPUTriCoreState *env, target_ulong r1,
     return suov32(env, result);
 }
 
+target_ulong helper_add_h_suov(CPUTriCoreState *env, target_ulong r1,
+                               target_ulong r2)
+{
+    int32_t ret_hw0, ret_hw1;
+
+    ret_hw0 = extract32(r1, 0, 16) + extract32(r2, 0, 16);
+    ret_hw1 = extract32(r1, 16, 16) + extract32(r2, 16, 16);
+    return suov16(env, ret_hw0, ret_hw1);
+}
+
 target_ulong helper_sub_ssov(CPUTriCoreState *env, target_ulong r1,
                              target_ulong r2)
 {
@@ -131,6 +211,16 @@ target_ulong helper_sub_ssov(CPUTriCoreState *env, target_ulong r1,
     return ssov32(env, result);
 }
 
+target_ulong helper_sub_h_ssov(CPUTriCoreState *env, target_ulong r1,
+                             target_ulong r2)
+{
+    int32_t ret_hw0, ret_hw1;
+
+    ret_hw0 = sextract32(r1, 0, 16) - sextract32(r2, 0, 16);
+    ret_hw1 = sextract32(r1, 16, 16) - sextract32(r2, 16, 16);
+    return ssov16(env, ret_hw0, ret_hw1);
+}
+
 target_ulong helper_sub_suov(CPUTriCoreState *env, target_ulong r1,
                              target_ulong r2)
 {
@@ -140,6 +230,16 @@ target_ulong helper_sub_suov(CPUTriCoreState *env, target_ulong r1,
     return suov32(env, result);
 }
 
+target_ulong helper_sub_h_suov(CPUTriCoreState *env, target_ulong r1,
+                               target_ulong r2)
+{
+    int32_t ret_hw0, ret_hw1;
+
+    ret_hw0 = extract32(r1, 0, 16) - extract32(r2, 0, 16);
+    ret_hw1 = extract32(r1, 16, 16) - extract32(r2, 16, 16);
+    return suov16(env, ret_hw0, ret_hw1);
+}
+
 target_ulong helper_mul_ssov(CPUTriCoreState *env, target_ulong r1,
                              target_ulong r2)
 {
@@ -174,6 +274,26 @@ target_ulong helper_sha_ssov(CPUTriCoreState *env, target_ulong r1,
     return ssov32(env, result);
 }
 
+uint32_t helper_abs_ssov(CPUTriCoreState *env, target_ulong r1)
+{
+    target_ulong result;
+    result = ((int32_t)r1 >= 0) ? r1 : (0 - r1);
+    return ssov32(env, result);
+}
+
+uint32_t helper_abs_h_ssov(CPUTriCoreState *env, target_ulong r1)
+{
+    int32_t ret_h0, ret_h1;
+
+    ret_h0 = sextract32(r1, 0, 16);
+    ret_h0 = (ret_h0 >= 0) ? ret_h0 : (0 - ret_h0);
+
+    ret_h1 = sextract32(r1, 16, 16);
+    ret_h1 = (ret_h1 >= 0) ? ret_h1 : (0 - ret_h1);
+
+    return ssov16(env, ret_h0, ret_h1);
+}
+
 target_ulong helper_absdif_ssov(CPUTriCoreState *env, target_ulong r1,
                                 target_ulong r2)
 {
@@ -189,6 +309,31 @@ target_ulong helper_absdif_ssov(CPUTriCoreState *env, target_ulong r1,
     return ssov32(env, result);
 }
 
+uint32_t helper_absdif_h_ssov(CPUTriCoreState *env, target_ulong r1,
+                              target_ulong r2)
+{
+    int32_t t1, t2;
+    int32_t ret_h0, ret_h1;
+
+    t1 = sextract32(r1, 0, 16);
+    t2 = sextract32(r2, 0, 16);
+    if (t1 > t2) {
+        ret_h0 = t1 - t2;
+    } else {
+        ret_h0 = t2 - t1;
+    }
+
+    t1 = sextract32(r1, 16, 16);
+    t2 = sextract32(r2, 16, 16);
+    if (t1 > t2) {
+        ret_h1 = t1 - t2;
+    } else {
+        ret_h1 = t2 - t1;
+    }
+
+    return ssov16(env, ret_h0, ret_h1);
+}
+
 target_ulong helper_madd32_ssov(CPUTriCoreState *env, target_ulong r1,
                                 target_ulong r2, target_ulong r3)
 {
@@ -348,6 +493,386 @@ uint64_t helper_msub64_suov(CPUTriCoreState *env, target_ulong r1,
     return ret;
 }
 
+uint32_t helper_abs_b(CPUTriCoreState *env, target_ulong arg)
+{
+    int32_t b, i;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    int32_t ret = 0;
+
+    for (i = 0; i < 4; i++) {
+        b = sextract32(arg, i * 8, 8);
+        b = (b >= 0) ? b : (0 - b);
+        ovf |= (b > 0x7F) || (b < -0x80);
+        avf |= b ^ b * 2u;
+        ret |= (b & 0xff) << (i * 8);
+    }
+
+    env->PSW_USB_V = ovf << 31;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = avf << 24;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_abs_h(CPUTriCoreState *env, target_ulong arg)
+{
+    int32_t h, i;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    int32_t ret = 0;
+
+    for (i = 0; i < 2; i++) {
+        h = sextract32(arg, i * 16, 16);
+        h = (h >= 0) ? h : (0 - h);
+        ovf |= (h > 0x7FFF) || (h < -0x8000);
+        avf |= h ^ h * 2u;
+        ret |= (h & 0xffff) << (i * 16);
+    }
+
+    env->PSW_USB_V = ovf << 31;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = avf << 16;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_absdif_b(CPUTriCoreState *env, target_ulong r1, target_ulong r2)
+{
+    int32_t b, i;
+    int32_t extr_r2;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    int32_t ret = 0;
+
+    for (i = 0; i < 4; i++) {
+        extr_r2 = sextract32(r2, i * 8, 8);
+        b = sextract32(r1, i * 8, 8);
+        b = (b > extr_r2) ? (b - extr_r2) : (extr_r2 - b);
+        ovf |= (b > 0x7F) || (b < -0x80);
+        avf |= b ^ b * 2u;
+        ret |= (b & 0xff) << (i * 8);
+    }
+
+    env->PSW_USB_V = ovf << 31;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = avf << 24;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+    return ret;
+}
+
+uint32_t helper_absdif_h(CPUTriCoreState *env, target_ulong r1, target_ulong r2)
+{
+    int32_t h, i;
+    int32_t extr_r2;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    int32_t ret = 0;
+
+    for (i = 0; i < 2; i++) {
+        extr_r2 = sextract32(r2, i * 16, 16);
+        h = sextract32(r1, i * 16, 16);
+        h = (h > extr_r2) ? (h - extr_r2) : (extr_r2 - h);
+        ovf |= (h > 0x7FFF) || (h < -0x8000);
+        avf |= h ^ h * 2u;
+        ret |= (h & 0xffff) << (i * 16);
+    }
+
+    env->PSW_USB_V = ovf << 31;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = avf << 16;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_add_b(CPUTriCoreState *env, target_ulong r1, target_ulong r2)
+{
+    int32_t b, i;
+    int32_t extr_r1, extr_r2;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    uint32_t ret = 0;
+
+    for (i = 0; i < 4; i++) {
+        extr_r1 = sextract32(r1, i * 8, 8);
+        extr_r2 = sextract32(r2, i * 8, 8);
+
+        b = extr_r1 + extr_r2;
+        ovf |= ((b > 0x7f) || (b < -0x80));
+        avf |= b ^ b * 2u;
+        ret |= ((b & 0xff) << (i*8));
+    }
+
+    env->PSW_USB_V = (ovf << 31);
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = avf << 24;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_add_h(CPUTriCoreState *env, target_ulong r1, target_ulong r2)
+{
+    int32_t h, i;
+    int32_t extr_r1, extr_r2;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    int32_t ret = 0;
+
+    for (i = 0; i < 2; i++) {
+        extr_r1 = sextract32(r1, i * 16, 16);
+        extr_r2 = sextract32(r2, i * 16, 16);
+        h = extr_r1 + extr_r2;
+        ovf |= ((h > 0x7fff) || (h < -0x8000));
+        avf |= h ^ h * 2u;
+        ret |= (h & 0xffff) << (i * 16);
+    }
+
+    env->PSW_USB_V = (ovf << 31);
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = (avf << 16);
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_sub_b(CPUTriCoreState *env, target_ulong r1, target_ulong r2)
+{
+    int32_t b, i;
+    int32_t extr_r1, extr_r2;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    uint32_t ret = 0;
+
+    for (i = 0; i < 4; i++) {
+        extr_r1 = sextract32(r1, i * 8, 8);
+        extr_r2 = sextract32(r2, i * 8, 8);
+
+        b = extr_r1 - extr_r2;
+        ovf |= ((b > 0x7f) || (b < -0x80));
+        avf |= b ^ b * 2u;
+        ret |= ((b & 0xff) << (i*8));
+    }
+
+    env->PSW_USB_V = (ovf << 31);
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = avf << 24;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_sub_h(CPUTriCoreState *env, target_ulong r1, target_ulong r2)
+{
+    int32_t h, i;
+    int32_t extr_r1, extr_r2;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    int32_t ret = 0;
+
+    for (i = 0; i < 2; i++) {
+        extr_r1 = sextract32(r1, i * 16, 16);
+        extr_r2 = sextract32(r2, i * 16, 16);
+        h = extr_r1 - extr_r2;
+        ovf |= ((h > 0x7fff) || (h < -0x8000));
+        avf |= h ^ h * 2u;
+        ret |= (h & 0xffff) << (i * 16);
+    }
+
+    env->PSW_USB_V = (ovf << 31);
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = avf << 16;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_eq_b(target_ulong r1, target_ulong r2)
+{
+    int32_t ret;
+    int32_t i, msk;
+
+    ret = 0;
+    msk = 0xff;
+    for (i = 0; i < 4; i++) {
+        if ((r1 & msk) == (r2 & msk)) {
+            ret |= msk;
+        }
+        msk = msk << 8;
+    }
+
+    return ret;
+}
+
+uint32_t helper_eq_h(target_ulong r1, target_ulong r2)
+{
+    int32_t ret = 0;
+
+    if ((r1 & 0xffff) == (r2 & 0xffff)) {
+        ret = 0xffff;
+    }
+
+    if ((r1 & 0xffff0000) == (r2 & 0xffff0000)) {
+        ret |= 0xffff0000;
+    }
+
+    return ret;
+}
+
+uint32_t helper_eqany_b(target_ulong r1, target_ulong r2)
+{
+    int32_t i;
+    uint32_t ret = 0;
+
+    for (i = 0; i < 4; i++) {
+        ret |= (sextract32(r1,  i * 8, 8) == sextract32(r2,  i * 8, 8));
+    }
+
+    return ret;
+}
+
+uint32_t helper_eqany_h(target_ulong r1, target_ulong r2)
+{
+    uint32_t ret;
+
+    ret = (sextract32(r1, 0, 16) == sextract32(r2,  0, 16));
+    ret |= (sextract32(r1, 16, 16) == sextract32(r2,  16, 16));
+
+    return ret;
+}
+
+uint32_t helper_lt_b(target_ulong r1, target_ulong r2)
+{
+    int32_t i;
+    uint32_t ret = 0;
+
+    for (i = 0; i < 4; i++) {
+        if (sextract32(r1,  i * 8, 8) < sextract32(r2,  i * 8, 8)) {
+            ret |= (0xff << (i * 8));
+        }
+    }
+
+    return ret;
+}
+
+uint32_t helper_lt_bu(target_ulong r1, target_ulong r2)
+{
+    int32_t i;
+    uint32_t ret = 0;
+
+    for (i = 0; i < 4; i++) {
+        if (extract32(r1,  i * 8, 8) < extract32(r2,  i * 8, 8)) {
+            ret |= (0xff << (i * 8));
+        }
+    }
+
+    return ret;
+}
+
+uint32_t helper_lt_h(target_ulong r1, target_ulong r2)
+{
+    uint32_t ret = 0;
+
+    if (sextract32(r1,  0, 16) < sextract32(r2,  0, 16)) {
+        ret |= 0xffff;
+    }
+
+    if (sextract32(r1,  16, 16) < sextract32(r2,  16, 16)) {
+        ret |= 0xffff0000;
+    }
+
+    return ret;
+}
+
+uint32_t helper_lt_hu(target_ulong r1, target_ulong r2)
+{
+    uint32_t ret = 0;
+
+    if (extract32(r1,  0, 16) < extract32(r2,  0, 16)) {
+        ret |= 0xffff;
+    }
+
+    if (extract32(r1,  16, 16) < extract32(r2,  16, 16)) {
+        ret |= 0xffff0000;
+    }
+
+    return ret;
+}
+
+#define EXTREMA_H_B(name, op)                                 \
+uint32_t helper_##name ##_b(target_ulong r1, target_ulong r2) \
+{                                                             \
+    int32_t i, extr_r1, extr_r2;                              \
+    uint32_t ret = 0;                                         \
+                                                              \
+    for (i = 0; i < 4; i++) {                                 \
+        extr_r1 = sextract32(r1, i * 8, 8);                   \
+        extr_r2 = sextract32(r2, i * 8, 8);                   \
+        extr_r1 = (extr_r1 op extr_r2) ? extr_r1 : extr_r2;   \
+        ret |= (extr_r1 & 0xff) << (i * 8);                   \
+    }                                                         \
+    return ret;                                               \
+}                                                             \
+                                                              \
+uint32_t helper_##name ##_bu(target_ulong r1, target_ulong r2)\
+{                                                             \
+    int32_t i;                                                \
+    uint32_t extr_r1, extr_r2;                                \
+    uint32_t ret = 0;                                         \
+                                                              \
+    for (i = 0; i < 4; i++) {                                 \
+        extr_r1 = extract32(r1, i * 8, 8);                    \
+        extr_r2 = extract32(r2, i * 8, 8);                    \
+        extr_r1 = (extr_r1 op extr_r2) ? extr_r1 : extr_r2;   \
+        ret |= (extr_r1 & 0xff) << (i * 8);                   \
+    }                                                         \
+    return ret;                                               \
+}                                                             \
+                                                              \
+uint32_t helper_##name ##_h(target_ulong r1, target_ulong r2) \
+{                                                             \
+    int32_t extr_r1, extr_r2;                                 \
+    uint32_t ret = 0;                                         \
+                                                              \
+    extr_r1 = sextract32(r1, 0, 16);                          \
+    extr_r2 = sextract32(r2, 0, 16);                          \
+    ret = (extr_r1 op extr_r2) ? extr_r1 : extr_r2;           \
+    ret = ret & 0xffff;                                       \
+                                                              \
+    extr_r1 = sextract32(r1, 16, 16);                         \
+    extr_r2 = sextract32(r2, 16, 16);                         \
+    extr_r1 = (extr_r1 op extr_r2) ? extr_r1 : extr_r2;       \
+    ret |= extr_r1 << 16;                                     \
+                                                              \
+    return ret;                                               \
+}                                                             \
+                                                              \
+uint32_t helper_##name ##_hu(target_ulong r1, target_ulong r2)\
+{                                                             \
+    uint32_t extr_r1, extr_r2;                                \
+    uint32_t ret = 0;                                         \
+                                                              \
+    extr_r1 = extract32(r1, 0, 16);                           \
+    extr_r2 = extract32(r2, 0, 16);                           \
+    ret = (extr_r1 op extr_r2) ? extr_r1 : extr_r2;           \
+    ret = ret & 0xffff;                                       \
+                                                              \
+    extr_r1 = extract32(r1, 16, 16);                          \
+    extr_r2 = extract32(r2, 16, 16);                          \
+    extr_r1 = (extr_r1 op extr_r2) ? extr_r1 : extr_r2;       \
+    ret |= extr_r1 << (16);                                   \
+                                                              \
+    return ret;                                               \
+}                                                             \
+
+EXTREMA_H_B(max, >)
+EXTREMA_H_B(min, <)
+
+#undef EXTREMA_H_B
+
 /* context save area (CSA) related helpers */
 
 static int cdc_increment(target_ulong *psw)