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41 Commits

Author SHA1 Message Date
Pierre Muller
a4240a0c62 Fix compilation of i8086/n8086add.pas unit after introduction of get_int_value function 2024-04-17 07:52:05 +00:00
florian
f29ff58ab9 + get_int_value 2024-04-16 23:11:16 +02:00
J. Gareth "Curious Kit" Moreton
b804fc5164 * Flags specific to TAddNode have been moved to their own field 2024-03-02 21:31:21 +01:00
J. Gareth "Curious Kit" Moreton
2dc0995067 - Bug fix to new ADD/SUB optimisation where conditions are concerned 
- Register allocation fixes for overflow checks
 2021-11-17 20:18:57 +00:00
Yuriy Sydorov
b78761efd3 * Removed obsolete OLDREGVARS ifdefs. 2021-11-02 17:08:08 +02:00
florian
637976e83f * patch by Marģers to unify internal error numbers, resolves #37888 
git-svn-id: trunk@47103 -
 2020-10-13 19:59:01 +00:00
yury
2186846ab1 * 8086: Fixed an internal error for cases like FarPtr2 := FarPointer($12345678) + int16; 
git-svn-id: trunk@46477 -
 2020-08-18 09:19:20 +00:00
Jonas Maebe
ce598c15ec * factored out the conditions under which add nodes need to perform 
overflow checks
   o in particular ensure that cpu-specific overrides don't perform overflow
     checks when nf_internal is set

git-svn-id: trunk@42573 -
 2019-08-03 12:19:50 +00:00
Jonas Maebe
281b3ad276 * fix case completeness and unreachable code warnings in compiler that would 
be introduced by the next commit

git-svn-id: trunk@42046 -
 2019-05-12 14:29:03 +00:00
Jonas Maebe
0b246f3dbd * converted Boolean8 to an internal type, and mapped Boolean to the 
new internal pasbool1(type) (part of mantis #34411)
   o apply the _Bool x86-64 parameter passing rules only to pasbool1

git-svn-id: trunk@39949 -
 2018-10-16 21:14:18 +00:00
nickysn
ddba821561 * GetNextReg(), used by 16-bit and 8-bit code generators (i8086 and avr) moved 
from cpubase unit to a method in the tcg class. The reason for doing that is
  that this is now a standard part of the 16-bit and 8-bit code generators and
  moving to the tcg class allows doing extra checks (not done yet, but for
  example, in the future, we can keep track of whether there was an extra
  register allocated with getintregister and halt with an internalerror in case
  GetNextReg() is called for registers, which weren't allocated as a part of a
  sequence, therefore catching a certain class of 8-bit and 16-bit code
  generator bugs at compile time, instead of generating wrong code).
- removed GetLastReg() from avr's cpubase unit, because it isn't used for
  anything. It might be added to the tcg class, in case it's ever needed, but
  for now I've left it out.
* GetOffsetReg() and GetOffsetReg64() were also moved to the tcg unit.

git-svn-id: trunk@37180 -
 2017-09-11 14:53:06 +00:00
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