🔖 Release 0.6.2

Author: Stefan Mach

README.md

@@ -30,7 +30,7 @@ Multiple integer formats with arbitrary number of bits (as source or destionatio
 - Conversions between FP formats and integers (signed & unsigned) and vice versa
 - Classification
 
-Multi-format FMA operations (i.e. multiplication in one format, accumulation in another) are optionally supported. 
+Multi-format FMA operations (i.e. multiplication in one format, accumulation in another) are optionally supported.
 
 Optionally, *packed-SIMD* versions of all the above operations can be generated for formats narrower than the FPU datapath width.
 E.g.: Support for double-precision (64bit) operations and two simultaneous single-precision (32bit) operations.
@@ -137,3 +137,11 @@ Furthermore, this repository tries to adhere to [SemVer](https://semver.org/), a
 ## Licensing
 
 FPnew is released under the *SolderPad Hardware License*, which is a permissive license based on Apache 2.0. Please refer to the [license file](LICENSE) for further information.
+
+## Acknowledgement
+
+This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 732631.
+
+For further information, visit [oprecomp.eu](http://oprecomp.eu).
+
+![OPRECOMP](docs/fig/oprecomp_logo_inline1.png)

docs/CHANGELOG.md

@@ -14,6 +14,15 @@ Versions of the IP in the same major relase are "pin-compatible" with each other
 ### Changed
 ### Fixed
 
+## [0.6.2] - 2020-06-02
+
+### Changed
+- Number of pipeline registers in multi-format units is the maximum of all contained formats instead of the first format marked `MERGED`
+
+### Fixed
+- Typo in changelog
+- Missing type cast breaking simulation in VCS [(#24)](https://github.com/pulp-platform/fpnew/issues/24)
+
 
 ## [0.6.1] - 2019-07-10
 
@@ -34,7 +43,7 @@ Versions of the IP in the same major relase are "pin-compatible" with each other
 - Various linter warnings
 - Documentation to reflect on updated pipeline distribution order
 - [fpu_div_sqrt_mvp] Bumped to fix linter warnings
-- [Bender] Fixed dependencies for Bender [(#14)](https://github.com/pulp-platform/fpnew/pull/15)
+- [Bender] Fixed dependencies for Bender [(#15)](https://github.com/pulp-platform/fpnew/pull/15)
 
 ### Removed
 - Currently unused modules: `fpnew_pipe*`, `fpnew_{f2i,f2f,i2f}_cast`

docs/fig/oprecomp_logo_inline1.png

@@ -441,7 +441,7 @@ module fpnew_cast_multi #(
     // Handle FP over-/underflows
     end else begin
       // Overflow or infinities (for proper rounding)
-      if ((destination_exp_q >= 2**fpnew_pkg::exp_bits(dst_fmt_q2)-1) ||
+      if ((destination_exp_q >= signed'(2**fpnew_pkg::exp_bits(dst_fmt_q2))-1) ||
           (~src_is_int_q && info_q.is_inf)) begin
         final_exp       = unsigned'(2**fpnew_pkg::exp_bits(dst_fmt_q2)-2); // largest normal value
         preshift_mant   = '1;                           // largest normal value and RS bits set

src/fpnew_cast_multi.sv

@@ -153,6 +153,7 @@ module fpnew_opgroup_block #(
   if (fpnew_pkg::any_enabled_multi(FmtUnitTypes, FpFmtMask)) begin : gen_merged_slice
 
     localparam FMT = fpnew_pkg::get_first_enabled_multi(FmtUnitTypes, FpFmtMask);
+    localparam REG = fpnew_pkg::get_num_regs_multi(FmtPipeRegs, FmtUnitTypes, FpFmtMask);
 
     logic in_valid;
 
@@ -164,7 +165,7 @@ module fpnew_opgroup_block #(
       .FpFmtConfig   ( FpFmtMask        ),
       .IntFmtConfig  ( IntFmtMask       ),
       .EnableVectors ( EnableVectors    ),
-      .NumPipeRegs   ( FmtPipeRegs[FMT] ),
+      .NumPipeRegs   ( REG              ),
       .PipeConfig    ( PipeConfig       ),
       .TagType       ( TagType          )
     ) i_multifmt_slice (

src/fpnew_opgroup_block.sv

@@ -470,4 +470,15 @@ package fpnew_pkg;
       return fp_format_e'(0);
   endfunction
 
+  // Returns the largest number of regs that is active and is set as MERGED
+  function automatic int unsigned get_num_regs_multi(fmt_unsigned_t regs,
+                                                     fmt_unit_types_t types,
+                                                     fmt_logic_t cfg);
+    automatic int unsigned res = 0;
+    for (int unsigned i = 0; i < NUM_FP_FORMATS; i++) begin
+      if (cfg[i] && types[i] == MERGED) res = maximum(res, regs[i]);
+    end
+    return res;
+  endfunction
+
 endpackage