diff options
Diffstat (limited to 'sim/aarch64/simulator.c')
-rw-r--r-- | sim/aarch64/simulator.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/sim/aarch64/simulator.c b/sim/aarch64/simulator.c index f0668ad..c2e02b1 100644 --- a/sim/aarch64/simulator.c +++ b/sim/aarch64/simulator.c @@ -8926,6 +8926,146 @@ do_scalar_SSHL (sim_cpu *cpu) aarch64_get_vec_s64 (cpu, rn, 0) >> - shift); } +/* Floating point scalar compare greater than or equal to 0. */ +static void +do_scalar_FCMGE_zero (sim_cpu *cpu) +{ + /* instr [31,23] = 0111 1110 1 + instr [22,22] = size + instr [21,16] = 1000 00 + instr [15,10] = 1100 10 + instr [9, 5] = Rn + instr [4, 0] = Rd. */ + + unsigned size = INSTR (22, 22); + unsigned rn = INSTR (9, 5); + unsigned rd = INSTR (4, 0); + + NYI_assert (31, 23, 0x0FD); + NYI_assert (21, 16, 0x20); + NYI_assert (15, 10, 0x32); + + TRACE_DECODE (cpu, "emulated at line %d", __LINE__); + if (size) + aarch64_set_vec_u64 (cpu, rd, 0, + aarch64_get_vec_double (cpu, rn, 0) >= 0.0 ? -1 : 0); + else + aarch64_set_vec_u32 (cpu, rd, 0, + aarch64_get_vec_float (cpu, rn, 0) >= 0.0 ? -1 : 0); +} + +/* Floating point scalar compare less than or equal to 0. */ +static void +do_scalar_FCMLE_zero (sim_cpu *cpu) +{ + /* instr [31,23] = 0111 1110 1 + instr [22,22] = size + instr [21,16] = 1000 00 + instr [15,10] = 1101 10 + instr [9, 5] = Rn + instr [4, 0] = Rd. */ + + unsigned size = INSTR (22, 22); + unsigned rn = INSTR (9, 5); + unsigned rd = INSTR (4, 0); + + NYI_assert (31, 23, 0x0FD); + NYI_assert (21, 16, 0x20); + NYI_assert (15, 10, 0x36); + + TRACE_DECODE (cpu, "emulated at line %d", __LINE__); + if (size) + aarch64_set_vec_u64 (cpu, rd, 0, + aarch64_get_vec_double (cpu, rn, 0) <= 0.0 ? -1 : 0); + else + aarch64_set_vec_u32 (cpu, rd, 0, + aarch64_get_vec_float (cpu, rn, 0) <= 0.0 ? -1 : 0); +} + +/* Floating point scalar compare greater than 0. */ +static void +do_scalar_FCMGT_zero (sim_cpu *cpu) +{ + /* instr [31,23] = 0101 1110 1 + instr [22,22] = size + instr [21,16] = 1000 00 + instr [15,10] = 1100 10 + instr [9, 5] = Rn + instr [4, 0] = Rd. */ + + unsigned size = INSTR (22, 22); + unsigned rn = INSTR (9, 5); + unsigned rd = INSTR (4, 0); + + NYI_assert (31, 23, 0x0BD); + NYI_assert (21, 16, 0x20); + NYI_assert (15, 10, 0x32); + + TRACE_DECODE (cpu, "emulated at line %d", __LINE__); + if (size) + aarch64_set_vec_u64 (cpu, rd, 0, + aarch64_get_vec_double (cpu, rn, 0) > 0.0 ? -1 : 0); + else + aarch64_set_vec_u32 (cpu, rd, 0, + aarch64_get_vec_float (cpu, rn, 0) > 0.0 ? -1 : 0); +} + +/* Floating point scalar compare equal to 0. */ +static void +do_scalar_FCMEQ_zero (sim_cpu *cpu) +{ + /* instr [31,23] = 0101 1110 1 + instr [22,22] = size + instr [21,16] = 1000 00 + instr [15,10] = 1101 10 + instr [9, 5] = Rn + instr [4, 0] = Rd. */ + + unsigned size = INSTR (22, 22); + unsigned rn = INSTR (9, 5); + unsigned rd = INSTR (4, 0); + + NYI_assert (31, 23, 0x0BD); + NYI_assert (21, 16, 0x20); + NYI_assert (15, 10, 0x36); + + TRACE_DECODE (cpu, "emulated at line %d", __LINE__); + if (size) + aarch64_set_vec_u64 (cpu, rd, 0, + aarch64_get_vec_double (cpu, rn, 0) == 0.0 ? -1 : 0); + else + aarch64_set_vec_u32 (cpu, rd, 0, + aarch64_get_vec_float (cpu, rn, 0) == 0.0 ? -1 : 0); +} + +/* Floating point scalar compare less than 0. */ +static void +do_scalar_FCMLT_zero (sim_cpu *cpu) +{ + /* instr [31,23] = 0101 1110 1 + instr [22,22] = size + instr [21,16] = 1000 00 + instr [15,10] = 1110 10 + instr [9, 5] = Rn + instr [4, 0] = Rd. */ + + unsigned size = INSTR (22, 22); + unsigned rn = INSTR (9, 5); + unsigned rd = INSTR (4, 0); + + NYI_assert (31, 23, 0x0BD); + NYI_assert (21, 16, 0x20); + NYI_assert (15, 10, 0x3A); + + TRACE_DECODE (cpu, "emulated at line %d", __LINE__); + if (size) + aarch64_set_vec_u64 (cpu, rd, 0, + aarch64_get_vec_double (cpu, rn, 0) < 0.0 ? -1 : 0); + else + aarch64_set_vec_u32 (cpu, rd, 0, + aarch64_get_vec_float (cpu, rn, 0) < 0.0 ? -1 : 0); +} + static void do_scalar_shift (sim_cpu *cpu) { @@ -9249,7 +9389,9 @@ do_scalar_vec (sim_cpu *cpu) case 0x0D: do_scalar_CMGT (cpu); return; case 0x11: do_scalar_USHL (cpu); return; case 0x2E: do_scalar_NEG (cpu); return; + case 0x32: do_scalar_FCMGE_zero (cpu); return; case 0x35: do_scalar_FABD (cpu); return; + case 0x36: do_scalar_FCMLE_zero (cpu); return; case 0x39: do_scalar_FCM (cpu); return; case 0x3B: do_scalar_FCM (cpu); return; default: @@ -9263,6 +9405,9 @@ do_scalar_vec (sim_cpu *cpu) { case 0x21: do_double_add (cpu); return; case 0x11: do_scalar_SSHL (cpu); return; + case 0x32: do_scalar_FCMGT_zero (cpu); return; + case 0x36: do_scalar_FCMEQ_zero (cpu); return; + case 0x3A: do_scalar_FCMLT_zero (cpu); return; default: HALT_NYI; } |