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| author | Quan Nguyen <quannguyen@berkeley.edu> | 2013-11-29 20:10:46 -0800 |
|---|---|---|
| committer | Quan Nguyen <quannguyen@berkeley.edu> | 2013-11-29 20:10:46 -0800 |
| commit | 05f9118e82283a6225534098487fa2011d065fd1 (patch) | |
| tree | 45e5a41816aab6ed899ffc09d5ecdf842618bcf1 /hwacha | |
| parent | af0a01988181dff9b36c560611af1d95f6add849 (diff) | |
| download | riscv-isa-sim-05f9118e82283a6225534098487fa2011d065fd1.zip riscv-isa-sim-05f9118e82283a6225534098487fa2011d065fd1.tar.gz riscv-isa-sim-05f9118e82283a6225534098487fa2011d065fd1.tar.bz2 | |
Add vsetprec instruction prototype
Diffstat (limited to 'hwacha')
| -rw-r--r-- | hwacha/decode_hwacha.h | 1 | ||||
| -rw-r--r-- | hwacha/hwacha.cc | 1 | ||||
| -rw-r--r-- | hwacha/hwacha.h | 1 | ||||
| -rw-r--r-- | hwacha/insns/vsetprec.h | 13 | ||||
| -rw-r--r-- | hwacha/opcodes_hwacha.h | 1 |
5 files changed, 17 insertions, 0 deletions
diff --git a/hwacha/decode_hwacha.h b/hwacha/decode_hwacha.h index b7069fa..badf750 100644 --- a/hwacha/decode_hwacha.h +++ b/hwacha/decode_hwacha.h @@ -20,6 +20,7 @@ #define WRITE_VL(vlnext) (h->get_ct_state()->vl = (vlnext)) #define WRITE_UTIDX(value) (h->get_ct_state()->count = (value)) #define WRITE_VF_PC(pcnext) (h->get_ct_state()->vf_pc = (pcnext)) +#define WRITE_PREC(precision) (h->get_ct_state()->prec = (precision)) #define INSN_RS1 (insn.rs1()) #define INSN_RS2 (insn.rs2()) diff --git a/hwacha/hwacha.cc b/hwacha/hwacha.cc index 8caf91e..1a89d73 100644 --- a/hwacha/hwacha.cc +++ b/hwacha/hwacha.cc @@ -11,6 +11,7 @@ void ct_state_t::reset() maxvl = 32; vl = 0; count = 0; + prec = 64; vf_pc = -1; } diff --git a/hwacha/hwacha.h b/hwacha/hwacha.h index df0add3..bbdd7c7 100644 --- a/hwacha/hwacha.h +++ b/hwacha/hwacha.h @@ -12,6 +12,7 @@ struct ct_state_t uint32_t maxvl; uint32_t vl; uint32_t count; + uint32_t prec; reg_t vf_pc; }; diff --git a/hwacha/insns/vsetprec.h b/hwacha/insns/vsetprec.h new file mode 100644 index 0000000..b36f27c --- /dev/null +++ b/hwacha/insns/vsetprec.h @@ -0,0 +1,13 @@ +uint32_t prec = u.r.funct; +switch (prec) { + case 16: + case 32: + case 64: + printf("Precision set to %d bits\n", prec); + WRITE_PREC(prec); + break; + + default: + h->take_exception(HWACHA_CAUSE_ILLEGAL_CFG, 2); + break; +} diff --git a/hwacha/opcodes_hwacha.h b/hwacha/opcodes_hwacha.h index e384b37..297b3af 100644 --- a/hwacha/opcodes_hwacha.h +++ b/hwacha/opcodes_hwacha.h @@ -26,6 +26,7 @@ DECLARE_INSN(vlsegwu, 0xc00205b, 0x1ff0707f) DECLARE_INSN(vmsv, 0x200202b, 0xfff0707f) DECLARE_INSN(vmvv, 0x200002b, 0xfff0707f) DECLARE_INSN(vsetcfg, 0x200b, 0x7fff) +DECLARE_INSN(vsetprec, 0x805b, 0xfffff) DECLARE_INSN(vsetvl, 0x600b, 0xfff0707f) DECLARE_INSN(vssegb, 0x207b, 0x1ff0707f) DECLARE_INSN(vssegd, 0x600207b, 0x1ff0707f) |