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30 Commits

Author SHA1 Message Date
Jonas Maebe
a25ebbba3e + added volatility information to all memory references 
o separate information for reading and writing, because e.g. in a
     try-block, only the writes to local variables and parameters are
     volatile (they have to be committed immediately in case the next
     instruction causes an exception)
   o for now, only references to absolute memory addresses are marked
     as volatile
   o the volatily information is (should be) properly maintained throughout
     all code generators for all archictures with this patch
   o no optimizers or other compiler infrastructure uses the volatility
     information yet
   o this functionality is not (yet) exposed at the language level, it
     is only for internal code generator use right now

git-svn-id: trunk@34996 -
 2016-11-27 18:17:37 +00:00
nickysn
863daace35 + implemented correct simplification of far pointer comparison of two pointer const nodes 
git-svn-id: trunk@32122 -
 2015-10-22 14:07:45 +00:00
florian
79619df936 + use the or instruction to compare 32 bit values with 0 
git-svn-id: trunk@31862 -
 2015-09-27 20:50:59 +00:00
Jonas Maebe
0fc1fd6ac1 * replaced current_procinfo.currtrue/falselabel with storing the true/false 
labels of LOC_JUMP in the node's location. This generates some extra jumps
    for short circuit boolean and/or-expressions if optimizations are off, but
    with optimisations enabled the generated code is the same (except for JVM
    because the jump threading optimisation isn't enabled there yet).

git-svn-id: trunk@31431 -
 2015-08-27 18:28:57 +00:00
nickysn
c28184b697 * fixed comparison of far procvars after the hlcgllvm branch merge 
git-svn-id: trunk@30357 -
 2015-03-29 00:56:43 +00:00
Károly Balogh
dd67fa8c5c * fixed DFA warnings for i8086 
git-svn-id: trunk@28504 -
 2014-08-20 15:49:27 +00:00
nickysn
4ea551a0f7 * is_farpointer and is_hugepointer moved from defutil to symcpu 
git-svn-id: trunk@28328 -
 2014-08-06 20:32:41 +00:00
nickysn
99c555cea8 + implemented huge pointer subtraction 
* the result of far pointer subtraction changed to word (for TP7 compatibility)

git-svn-id: trunk@28218 -
 2014-07-13 23:40:43 +00:00
nickysn
200df7a136 * set expectloc correctly for far pointer comparison as well 
git-svn-id: trunk@28217 -
 2014-07-13 16:25:20 +00:00
nickysn
04234c733f * set expectloc correctly (LOC_JUMP instead of LOC_FLAGS) for non-normalized 
huge pointer comparison

git-svn-id: trunk@28216 -
 2014-07-13 15:20:58 +00:00
nickysn
5818451bb5 * non-normalized huge pointer comparison made unsigned 
git-svn-id: trunk@28214 -
 2014-07-13 12:54:12 +00:00
nickysn
8604372da3 + implemented far pointer comparison operating only on the offset (+ added test) 
git-svn-id: trunk@28179 -
 2014-07-06 22:45:19 +00:00
nickysn
3bb730d5b9 + implemented normalized huge pointer comparison 
git-svn-id: trunk@28157 -
 2014-07-04 23:22:33 +00:00
nickysn
aee568e6fc * cs_hugeptr_normalization renamed to cs_hugeptr_arithmetic_normalization, 
because we're going to also introduce cs_hugeptr_comparison_normalization as
  an independent option

git-svn-id: trunk@28149 -
 2014-07-04 13:14:06 +00:00
nickysn
d9e94ffab7 + implemented huge pointer arithmetic 
git-svn-id: trunk@28139 -
 2014-07-03 16:53:22 +00:00
nickysn
9f2e59de3a + implemented far pointer arithmetic in the i8086 add node simplify method 
git-svn-id: trunk@27495 -
 2014-04-06 18:51:53 +00:00
nickysn
8d1ed088c8 + implemented far pointer arithmetic (operating only on the offset, without 
touching the segment)

git-svn-id: trunk@27485 -
 2014-04-06 13:12:29 +00:00
nickysn
2602f379d7 * fixes in the 16 to 32-bit multiplication in ti8086addnode.second_mul 
git-svn-id: trunk@26497 -
 2014-01-18 00:38:46 +00:00
nickysn
3f4111ac37 * emit MUL instead of IMUL in ti8086addnode.second_mul when overflow checking is 
off and the multiplication is 16->16

git-svn-id: trunk@26495 -
 2014-01-17 23:04:46 +00:00
nickysn
2a64ba0ad3 * do a 32-bit comparison on far and huge pointers 
git-svn-id: trunk@25110 -
 2013-07-16 07:57:49 +00:00
nickysn
ec76b2cf40 * refactored the segment-in-integer-register reference support, so it's handled in make_simple_ref, instead of all over the place in the code generator 
git-svn-id: trunk@24752 -
 2013-06-01 22:18:09 +00:00
nickysn
1e8b192b3d * support far references in second_cmp32bit for i8086 
git-svn-id: trunk@24736 -
 2013-06-01 17:51:18 +00:00
nickysn
10b3ce1ba5 * fixed an opsize bug in ti8086addnode.second_add64bit, which caused 32-bit instructions to be emitted 
git-svn-id: trunk@24670 -
 2013-05-31 17:13:38 +00:00
nickysn
5dd5add67a * proper implementation of ti8086addnode.second_cmp64bit 
git-svn-id: branches/i8086@23871 -
 2013-03-16 19:01:15 +00:00
nickysn
56d2830beb + implemented 32-bit comparisons on the i8086 
git-svn-id: branches/i8086@23870 -
 2013-03-16 18:13:11 +00:00
nickysn
c438f3b53a * 386 changed to 8086 in various class names and comments 
git-svn-id: branches/i8086@23813 -
 2013-03-12 23:22:52 +00:00
nickysn
ea282ab4b3 * many int64 fixes 
git-svn-id: branches/i8086@23812 -
 2013-03-12 23:18:36 +00:00
nickysn
d0c43f50f0 * fixed ti8086addnode.second_add64bit 
git-svn-id: branches/i8086@23809 -
 2013-03-12 16:25:44 +00:00
nickysn
2872fb95b5 * i8086 multiplication fixes; 16-bit multiplication now works; 32-bit still doesn't 
git-svn-id: branches/i8086@23795 -
 2013-03-11 22:31:17 +00:00
nickysn
8d346d162b added n8086add.pas (copy of n386add.pas), TODO: adapt to i8086 
git-svn-id: branches/i8086@23762 -
 2013-03-09 23:17:23 +00:00