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| author | Dave.Wen <dave.wen@sifive.com> | 2020-05-12 07:55:46 -0700 |
|---|---|---|
| committer | Dave.Wen <dave.wen@sifive.com> | 2020-05-13 00:01:13 -0700 |
| commit | bfe66040a274eaaefdf82e5f225c8b2edd742e67 (patch) | |
| tree | d075f638d065c5605d119fc208118b4ef8ac2120 /riscv/decode.h | |
| parent | c0c919a5a29ea5f2bdcef6f7bc0d328c12406059 (diff) | |
| download | spike-bfe66040a274eaaefdf82e5f225c8b2edd742e67.zip spike-bfe66040a274eaaefdf82e5f225c8b2edd742e67.tar.gz spike-bfe66040a274eaaefdf82e5f225c8b2edd742e67.tar.bz2 | |
eew: fix the eew=0 case
Diffstat (limited to 'riscv/decode.h')
| -rw-r--r-- | riscv/decode.h | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/riscv/decode.h b/riscv/decode.h index 679d466..a68f234 100644 --- a/riscv/decode.h +++ b/riscv/decode.h @@ -118,11 +118,11 @@ public: uint64_t v_zimm11() { return x(20, 11); } uint64_t v_lmul() { return 1 << x(20, 2); } uint64_t v_sew() { return 1 << (x(22, 3) + 3); } - uint64_t v_width() {return x(12, 3); } - uint64_t v_mop() {return x(26, 2); } - uint64_t v_lumop() {return x(20, 5); } - uint64_t v_sumop() {return x(20, 5); } - uint64_t v_mew() {return x(28, 1); } + uint64_t v_width() { return x(12, 3); } + uint64_t v_mop() { return x(26, 2); } + uint64_t v_lumop() { return x(20, 5); } + uint64_t v_sumop() { return x(20, 5); } + uint64_t v_mew() { return x(28, 1); } private: insn_bits_t b; @@ -386,15 +386,16 @@ inline long double to_f(float128_t f){long double r; memcpy(&r, &f, sizeof(r)); #define VI_MASK_VARS \ const int mlen = P.VU.vmlen; \ const int midx = (mlen * i) / 64; \ - const int mpos = (mlen * i) % 64; \ + const int mpos = (mlen * i) % 64; #define VI_LOOP_ELEMENT_SKIP(BODY) \ VI_MASK_VARS \ if (insn.v_vm() == 0) { \ BODY; \ bool skip = ((P.VU.elt<uint64_t>(0, midx) >> mpos) & 0x1) == 0; \ - if (skip) \ - continue; \ + if (skip) {\ + continue; \ + }\ } #define VI_ELEMENT_SKIP(inx) \ @@ -932,6 +933,7 @@ static inline bool is_overlapped(const int astart, const int asize, REDUCTION_ULOOP(e64, BODY) \ } + // genearl VXI signed/unsgied loop #define VI_VV_ULOOP(BODY) \ VI_CHECK_SSS(true) \ @@ -1547,11 +1549,12 @@ for (reg_t i = 0; i < P.VU.vlmax && P.VU.vl != 0; ++i) { \ P.VU.vstart = 0; #define VI_EEW(mew, width) \ - reg_t base = mew? 128 : 8; \ - reg_t shf = width == 0? 0: width - 5; \ - P.VU.veew = base << shf; \ - P.VU.vemul = (P.VU.veew/P.VU.vsew) * P.VU.vlmul; \ - assert((P.VU.veew/P.VU.vemul) == (P.VU.vsew/P.VU.vlmul)); + int32_t base = mew? 128 : 8; \ + int32_t shf = width? width - 5 : 0; \ + P.VU.veew = base << (shf + 1); \ + P.VU.vemul = ((float)P.VU.veew/P.VU.vsew) * P.VU.vlmul; \ + assert((P.VU.veew/P.VU.vemul) == (P.VU.vsew/P.VU.vlmul)); \ + assert(P.VU.vemul <= 8 && P.VU.vemul >= (1/8)); #define VI_LD_INDEX(stride, offset, ld_width, is_seg) \ VI_CHECK_LD_INDEX; \ |