rishi/scryer-prolog
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5fc21241d6dac992120d0815cec6599a60879ecc
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135 Commits

Author SHA1 Message Date
Skgland
5fc21241d6 hint to the compiler/branch-predictor that 
we expect p to be in bound

if we are suffiently certain that p can never be oob
unsafe get_unchecked could be used to
eliminate bounds checking all together
which should improve performance further.
 2026-03-21 19:01:52 +01:00
Skgland
153f04b72a adjust interrupt handling 
we used to spend ~5.8% of the time on getting the next value of the 0..INSTRUCTIONS_PER_INTERRUPT_POLL iterator

increment on Wrapping<u8> now only takes ~0.58 of the time
 2026-03-21 14:20:11 +01:00
Skgland
8aab887388 switch from Integer to u128 
- u128 is only 16 bytes instead of 24
- incrementing u128 does not involve heap allocations
- u128 should be sufficent
 it would take more than 2 sextilion years to overflow if we would be incrementing it every tick at 5GHz
   i.e. 2^128-1 / 5 GHz / 60 / 60 / 24 / 356 > 2 sextilion

before this ~3.2% of the execution time of the program in https://github.com/mthom/scryer-prolog/issues/3265#issuecomment-4103176469 was spend in the increment_call_count function, after this change it's down to 0.3%
 2026-03-21 13:36:40 +01:00
Mark Thom
4a8388a6e9 Merge pull request #3189 from Skgland/fix-function_casts_as_integer 
fix `function_casts_as_integer` warning
 2026-03-09 22:06:33 -07:00
Mark Thom
c2e1ded852 remove variant_hashing.rs and related instructions 2026-01-14 20:39:48 -08:00
Mark Thom
6284aa3a3f add variant_hash and is_non_variant to fix setof/3, bagof/3 2026-01-14 20:39:48 -08:00
Mark Thom
29cd80510b replace compare_term_test with parallel iterator, add is_not_variant 2026-01-14 20:39:45 -08:00
Skgland
5064760b1e fix spelling 2026-01-10 18:13:59 +01:00
Skgland
eca4262be6 fix clippy lints 2026-01-10 17:52:34 +01:00
Skgland
797a8f8611 fix function_casts_as_integer warning 
Comparing addresses of function pointers is brittle.

Functions may be duplicated resulting in function pointers to the same function to compare !=.
Functions may be merged/de-duplicated resulting in function pointers to different function to compare ==.

The later shouldn't be relevant here as the function differ in behavior, but mentioning it for completeness.
 2025-12-04 23:35:23 +01:00
Mark Thom
f570e566f8 fix backtrack_on_resource_error around choice instructions 2025-12-03 18:13:00 -08:00
Mark Thom
96a9dfcc1b Merge pull request #3185 from mthom/install_verify_attr_opt 
Optimize `verify_attr` by removing the need to scan instructions
 2025-12-03 19:10:46 -07:00
Mark Thom
3b019fca1d corrections to dispatch loop 2025-11-27 21:03:22 -08:00
Mark Thom
4bd16b8a2e revise InstallVerifyAttrs to remove need for predicate scanning (#3175) 2025-11-25 23:17:51 -08:00
Mark Thom
f2e044e5b8 remove interms field from MachineState 2025-11-24 22:19:36 -08:00
Skgland
e9e97fe82a handle machine heap/stack allocation error 2025-11-19 22:17:24 +01:00
Mark Thom
fc6e007ad1 add missing P increment to GetPartialString (#3089) 2025-09-17 20:31:03 -07:00
Mark Thom
ba7b54e8f8 fix attempted bind to bound StackVar (#3089) 2025-09-17 19:43:37 -07:00
Skgland
6f3f66c407 fix builds without ffi feature 2025-08-24 21:08:52 +02:00
Skgland
20d52c093a add ffi:{allocate,read_ptr,deallocate} 2025-08-24 19:56:23 +02:00
David C. Norris
af3792f79a library(numerics), special funs from crate puruspe 2025-08-10 10:01:01 -04:00
Bennet Bleßmann
dc08a4ab11 get process_create working and add tests 2025-08-01 20:47:22 +02:00
Bennet Bleßmann
ca52c65902 don't remove the child on wait/kill 
- important for wait with timout(0) as we may want to try again until the process has realy exited.

- make process_release release the process instead
 2025-08-01 20:33:15 +02:00
Bennet Bleßmann
97e2e5d7f0 implement process_release/1, process_wait/2, process_wait/3, and process_kill/1 2025-08-01 20:27:27 +02:00
Bennet Bleßmann
ae0baf4893 [WIP] add support to spawn new processes 2025-08-01 20:18:13 +02:00
Bennet Bleßmann
ae3019d923 fix unecessary reference/dereference 2025-07-31 21:46:51 +02:00
Mark Thom
762b63e1f4 use granular hierarchical locks in offset_table.rs 2025-07-07 22:44:02 -07:00
Mark Thom
2844b5a958 synchronize offset table growth with the borrowing of offset pointers 2025-07-07 22:39:47 -07:00
Mark Thom
1332611f83 use OffsetTableImpl without synchronization by default 2025-07-07 22:39:47 -07:00
Bennet Bleßmann
cbdd0fbf15 make Fixnum::build_with harder to accidentally misuse 
change trait bound order for better
 2025-07-07 22:39:34 -07:00
Mark Thom
706ffe7ad9 fix functor! size calculations around indexing_code_ptr 2025-07-07 22:38:12 -07:00
Mark Thom
39ea2d5899 make self.s_offset use bytes in case of HeapPtr::PStr in UnifyVoid (#2897) 2025-07-07 22:38:12 -07:00
Mark Thom
6bcbb91e08 correctly increment s_offset for partial strings (#2897) 2025-07-07 22:38:12 -07:00
Mark Thom
4c46f0e54d correct GetPartialString (#2887) 2025-07-07 22:38:12 -07:00
Mark Thom
e563fd8e4f generalize compare_pstr_segments 2025-07-07 22:38:12 -07:00
Mark Thom
22080f3787 move CodeIndex to F64Table-like table 2025-07-07 22:38:12 -07:00
Mark Thom
9e1e99f961 Revert "remove Term" 
This reverts commit 3b5879841aedecba5057c70c71da0ba23e5cd84a.
 2025-07-07 22:38:10 -07:00
Mark Thom
ae4d12a123 remove pstr_vec 2025-07-07 22:02:27 -07:00
Mark Thom
c0f72704ec introduce bespoke Heap type for in-heap partial strings 2025-07-07 21:59:50 -07:00
Mark Thom
1ef681bd21 remove Term 2025-07-07 21:54:08 -07:00
bakaq
6d80c843e6 Scan entire predicate in InstallVerifyAttr 2025-02-05 11:40:05 -03:00
bakaq
b8ccebbf24 Fix bug in finding arity for verify attributes 2025-02-04 04:11:11 -03:00
Emilie Burgun
6cedbc33c0 Fix load_context_module triggering unreachable code in unify_atom 2025-01-08 17:57:40 +01:00
notoria
8cde3f8ce3 Add '$random_integer'/3 2024-12-08 20:00:00 +01:00
bakaq
16734ec7e4 Fix Clippy 2024-09-06 21:34:49 -03:00
bakaq
ada9ba98cc Make macros private 2024-09-06 17:17:04 -03:00
Mark
42f4827854 make indexer downcast Integers to Fixnums when possible, be slightly more judicious about allocating Integers instead of Fixnums (#2340) 2024-02-29 16:15:28 -07:00
Markus Triska
27852eafd7 ADDED: Hash-based message authentication code (HMAC), using hmac(Key). 2024-02-22 20:53:27 +01:00
Mark
6fe8f64835 scan registers of instructions leading to verify_attributes interrupt to find the number of registers to save (#2307) 2024-01-25 23:59:54 -07:00
Adrián Arroyo Calle
47b5ae7984 Move argv/1 to library(os) 2024-01-02 13:16:11 +01:00