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| author | MITSUNARI Shigeo <[email protected]> | 2023-12-01 15:02:58 +0900 |
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| committer | MITSUNARI Shigeo <[email protected]> | 2023-12-01 15:03:00 +0900 |
| commit | da1818592f72fda57bea355a94e8a96e7ef0fc8d (patch) | |
| tree | 3921f75974449c0ce6563d0282a6a14d4f6c8971 /doc | |
| parent | bec145ba918a7ce23e7aafebe641afb2a67b1e03 (diff) | |
| download | xbyak-da1818592f72fda57bea355a94e8a96e7ef0fc8d.tar.gz xbyak-da1818592f72fda57bea355a94e8a96e7ef0fc8d.zip | |
update doc
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/usage.md | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/doc/usage.md b/doc/usage.md index e7324e7..e0ecccc 100644 --- a/doc/usage.md +++ b/doc/usage.md @@ -129,17 +129,22 @@ vpdpbusd(xm0, xm1, xm2); // VEX encoding * specify `xword`/`yword`/`zword(_b)` for m128/m256/m512 if necessary. ## APX -- Support 16 additional GPRs (general-purpose registers) r16, ..., r31 +[Advanced Performance Extensions (APX) Architecture Specification](https://www.intel.com/content/www/us/en/content-details/786223/intel-advanced-performance-extensions-intel-apx-architecture-specification.html) +- Support 64-bit 16 additional GPRs (general-purpose registers) r16, ..., r31 + - 32-bit regs are r16d, ..., r31d + - 16-bit regs are r16w, ..., r31w + - 8-bit regs are r16b, ..., r31b + - `add(r20, r21);` + - `lea(r30, ptr[r29+r31]);` - Support three-operand instruction + - `add(r20, r21, r23);` + - `add(r20, ptr[rax + rcx * 8 + 0x1234], r23);` - Support T_nf for NF=1 (status flags update suppression) + - `add(r20|T_nf, r21, r23);` // Set EVEX.NF=1 - Support T_zu for NF=ZU (zero upper) for imul and setcc - -e.g. -- `add(r20, r21, r23);` -- `add(r20, ptr[rax + rcx * 8 + 0x1234], r23);` -- `add(r20|T_nf, r21, r23);` // set EVEX.NF=1 -- `imul(ax|T_zu, cx, 0x1234);` // set ND=ZU -- `imul(ax|T_zu|T_nf, cx, 0x1234);` // set ND=ZU and EVEX.NF=1 + - `imul(ax|T_zu, cx, 0x1234);` // Set ND=ZU + - `imul(ax|T_zu|T_nf, cx, 0x1234);` // Set ND=ZU and EVEX.NF=1 + - `setb(r31b|T_zu);` // same as set(r31b); movzx(r31, r31b); ## Label Two kinds of Label are supported. (String literal and Label class). |