Commit Graph

954 Commits

Author SHA1 Message Date
Larry Doolittle 2739f83702 Spelling fixes in C and C++ comments 2015-06-04 15:00:29 -07:00
Larry Doolittle 33c651aa00 Spelling fixes in .txt files 2015-05-25 12:52:03 -07:00
Martin Whitaker cfbc90812b Enable use of MinGW ANSI stdio routines.
Defining __USE_MINGW_ANSI_STDIO=1 provides C99 compatible printf
and scanf routines, which avoids the need for workarounds for the
various failings of the Microsoft C runtime library.
2015-05-10 11:45:42 +01:00
Martin Whitaker e1ae5020c4 Another sorry message to catch non-constant RHS in procedural CA. 2015-04-25 11:25:33 +01:00
Cary R 02ee3874e7 Space/code cleanup and warn that vvp does not support S/R D-FF 2015-04-20 15:41:44 -07:00
Larry Doolittle 5dc1396eea Spelling fixes 2015-04-13 11:35:12 -07:00
Cary R 8326fe843b Update format string to use correct format character 2015-04-08 19:36:33 -07:00
Cary R 1cbc38100e Update some cppcheck suppression files 2015-04-08 19:36:21 -07:00
Cary R 50b45dac7b Update queue push front/back code generation 2015-03-06 16:56:22 -08:00
Cary R feb710a186 Add support for any width 2-state darray objects 2015-02-27 11:43:25 -08:00
Cary R 62abb199d7 Add support for 4-state dynamic arrays 2015-02-26 17:56:49 -08:00
Maciej Suminski 756c9ceccf ivl: Functions returning a dynamic array may be casted to vector. 2015-02-04 16:02:38 +01:00
Maciej Suminski 8b3667f76e ivl: Casting vectors to dynamic arrays. 2015-02-04 16:02:38 +01:00
Maciej Suminski a52242745a ivl: Casting dynamic arrays to vectors. 2015-02-04 16:02:38 +01:00
Cary R 01ba41afd8 Only skip zero repeat expressions in a concatenation. 2015-02-02 18:15:12 -08:00
Cary R 84c592b068 Fix white space issue 2015-02-02 15:29:25 -08:00
Cary R bb93a585b6 Generate correct vvp code for zero replication cases 2015-02-02 15:27:57 -08:00
Cary R b3425d6cf3 Report that 4-state dynamic arrays are not currently supported in vvp
Also fix some error code propagation issues.
2015-01-16 18:22:16 -08:00
Cary R 40ae1051d4 Report the vvp only supports a dynamic array of size 8, 16, 32 or 64 2015-01-15 18:18:14 -08:00
Cary R 1ffcd40336 Fix a clear word to be after it has been used 2015-01-14 19:48:24 -08:00
Maciej Suminski eeaf23041b vvp: Support for dynamic arrays of logic type. 2015-01-12 11:08:31 +01:00
Martin Whitaker 71c4ea36e8 Pass -v compiler option to vvp in the output file shebang line.
Slightly modified version of the patch contributed by Stephan
Böttcheron iverilog-devel.
2014-12-16 21:22:19 +00:00
Martin Whitaker 5df179cd5f Implement feature request #47.
This causes vvp to evaluate all the input expressions for a user
function call before assigning any of them to the function input
variables. This stops the input variables being overwritten if
the same (non-automatic) function is used in one of the input
expressions.
2014-12-14 21:46:28 +00:00
Cary R b2d8d41e3f Fix some cppcheck warnings in tgt-vvp 2014-12-10 16:30:55 -08:00
Cary R 1efa220773 Fix non-blocking assignment to an array error state handling
If either the index or part offset expressions generate an undefined
value then the assignment is skipped. This patch reworks the code that
handles the flags used to detect this. For some simple cases a global
flag is not needed, but for other cases one is needed since there are
two expressions that can generate an error and even when there is only
a variable expression this error state needs to be preserved if there
is a variable delay. An undefined delay value defaults to zero and is
not an error.
2014-12-09 17:29:18 -08:00
Stephen Williams 105521b547 Merge branch 'master' into vec4-stack 2014-12-06 08:24:46 -08:00
Cary R 77ebfcacb9 Correctly pass if a darray element is signed or unsigned. 2014-12-05 18:23:02 -08:00
Stephen Williams 409f8c5823 Add the vec4 %subi instruction 2014-12-05 09:45:29 -08:00
Stephen Williams 85c7b07a9b Implement %cmp/ne and %cmpi/ne
These pull in the inversion of the output flags so that they more
efficiently implement != and !==, without %flag_inv instructions.
2014-12-03 11:06:11 -08:00
Stephen Williams 3bd307db85 Expression cast handles size if need be. 2014-12-02 16:54:32 -08:00
Stephen Williams f287546f49 Fix a %vpi_call call syntax. 2014-12-02 15:28:22 -08:00
Stephen Williams 1645e682f4 Generate more efficient vec4-stack code for real le compare. 2014-12-02 14:53:01 -08:00
Stephen Williams 58fb80aec4 Implement and put to use the %muli instruction. 2014-12-02 12:46:17 -08:00
Stephen Williams 38f277d81b Merge branch 'master' into vec4-stack
Conflicts:
	vvp/array.cc
	vvp/vthread.cc
2014-12-02 11:21:58 -08:00
Maciej Suminski b12e00d875 ivl: String to vector casting. 2014-11-27 17:36:23 +01:00
Stephen Williams 663c79d4af Add the %cmp/e instructions, and put them to use.
When testing for == and ===, there is no need to also calculate <,
so it makes sense to have a special instruction for these cases.
2014-11-21 16:45:27 -08:00
Stephen Williams b96f04ccce Implement the %parti/X instructions
This allows part select with constant base to be handled optimally.
Also update some more instructions to more optimally work with
the vec4 stack.
2014-11-20 18:43:24 -08:00
Stephen Williams a9db765f98 Generate better code for condition expressions. 2014-11-20 14:47:44 -08:00
Stephen Williams c71ab5869a vvp code generator try to generate condition flags directly.
When generating code for a condition expression, i.e. directly
before a %jmp/X statement, try to generate the result into the
flag bit without passing through the vec4 stack. For example, the
%cmpX/X instructions generate results into the flag bits, so it
makes no sense to push these bits into the vec4 stack then pop
them back into the flag bit. So try to handle this case.
2014-11-19 18:32:19 -08:00
Stephen Williams 04bdfbccee Add %cmpi/s and %cmpi/u instructions for performance
These bypass the vec4 stack in some common cases, saving instructions
and vec4 manipulations.

Also, minor improvement to the %flag/set/vec4 statement.

Kill a few warnings.
2014-11-19 16:38:43 -08:00
Stephen Williams 301edf69d3 Add and use %concati/vec4 and %addi instructions.
Also, clean up some warnings, and optimize some existing opcodes.
2014-11-18 12:27:55 -08:00
Stephen Williams c2ca9c3b73 Optimize draw_number_vec4 to use %pushi/vec4 zero-padding. 2014-11-14 18:37:10 -08:00
Martin Whitaker f171161822 Fix for br962 - pop from dynamic array is not padded to correct width.
When the expression width is greater than the dynamic array width,
we need to generate code to pad the popped value to the correct
width.
2014-11-02 15:26:15 +00:00
Stephen Williams 48d3972299 Remove a bunch of dead vvp opcodes. 2014-10-24 15:13:28 -07:00
Stephen Williams 62fce50f8c Remove dead code for allocate_vec handling. 2014-10-24 13:07:53 -07:00
Stephen Williams e4b862f3d1 Clean up vector handling dead code. 2014-10-24 11:17:36 -07:00
Stephen Williams 09d3a5de59 Port %pushv/str to vec4-stack style. 2014-10-24 10:16:35 -07:00
Stephen Williams 97bde47c31 Remove dead %set/dar and %set/dar/obj instructions. 2014-10-24 10:03:22 -07:00
Stephen Williams 1c80c6e37a Remove dead stuff_ok_flags from draw_eval_vec4 functions. 2014-10-24 09:32:32 -07:00
Stephen Williams 4588f7c615 vec4 stack versions of queue pop methods. 2014-10-24 09:03:20 -07:00