I found that it had to do with : w <= w(14 downto 0) & std_logic_vector(unsigned(w(15)) + unsigned(s0) + unsigned(w(6)) + unsigned(s1));
or in the original version of the vHDL code w <= w(14 downto 0) & (w(15) + s0 + w(6) + s1); Where type wT is array (15 downto 0) of STD_LOGIC_VECTOR(31 downto 0); signal w : wT; best regards Simon On Sat, Apr 23, 2016 at 8:39 PM, Simon Thijs de Feber <st.de.fe...@gmail.com > wrote: > Hello All, > > I am using GHDL version > GHDL 0.33 (20150921) [Dunoon edition] > Compiled with GNAT Version: 5.2.0 > GCC back-end code generator > > > I got this exception for an unknown reason while compiling a sha256 core > from opencores. > > ghdl -a --ieee=synopsys -fexplicit -v > ../../securehash256bits_org/trunk/sha256.vhd > /usr/local/libexec/gcc/i686-slackware-linux/4.9.3/ghdl1 -fexplicit > -P/usr/local/lib/gcc/i686-slackware-linux/4.9.3/vhdl//v93/std/ > -P/usr/local/lib/gcc/i686-slackware-linux/4.9.3/vhdl//v93/synopsys/ -quiet > -o sha256.s ../../securehash256bits_org/trunk/sha256.vhd > > ******************** GHDL Bug occured **************************** > Please report this bug on http://gna.org/projects/ghdl > GHDL release: GHDL 0.33 (20150921) [Dunoon edition] > Compiled with GNAT Version: 5.2.0 > In directory: /home/stdefeber/projects/sandbox/ax_hmac/ghdl/ > Command line: > /usr/local/libexec/gcc/i686-slackware-linux/4.9.3/ghdl1 -fexplicit > -P/usr/local/lib/gcc/i686-slackware-linux/4.9.3/vhdl//v93/std/ > -P/usr/local/lib/gcc/i686-slackware-linux/4.9.3/vhdl//v93/synopsys/ -quiet > -o sha256.s ../../securehash256bits_org/trunk/sha256.vhd > Exception TYPES.INTERNAL_ERROR raised > Exception information: > Exception name: TYPES.INTERNAL_ERROR > Message: trans.adb:1516 > Call stack traceback locations: > 0x82282f5 0x8250165 0x8250733 0x8251e1a 0x8251f5f 0x825264f 0x8213459 > 0x8208e70 0x8212a5c 0x8214580 0x82115ee 0x8240cff 0x823dcf5 0x823dd42 > 0x823dd8c 0x823f02a 0x823dcf5 0x823dd42 0x823f02a 0x823dcf5 0x8233879 > 0x825acc0 0x822a895 0x825ca13 0x81abd4c 0x81864b3 0x856b180 0x856cdfd > 0x81abdba 0x8183dba 0xb75ad29e 0x8184268 > ****************************************************************** > > Execution terminated by unhandled exception > Exception name: TYPES.INTERNAL_ERROR > Message: trans.adb:1516 > Call stack traceback locations: > 0x82282f5 0x8250165 0x8250733 0x8251e1a 0x8251f5f 0x825264f 0x8213459 > 0x8208e70 0x8212a5c 0x8214580 0x82115ee 0x8240cff 0x823dcf5 0x823dd42 > 0x823dd8c 0x823f02a 0x823dcf5 0x823dd42 0x823f02a 0x823dcf5 0x8233879 > 0x825acc0 0x822a895 0x825ca13 0x81abd4c 0x81864b3 0x856b180 0x856cdfd > 0x81abdba 0x8183dba 0xb75ad29e 0x8184268 > ghdl: compilation error > > VHDL code is attached. > I changed the code from using std_logic unsigned to numeric_std. > Both version exhibit same error. > > best regards > > Simon > > > > > > >
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