sail - Formal specification language for ISAs

Age	Commit message (Collapse)	Author
2017-07-06	fix interpreter lteq/gteq for range/vec.	Robert Norton

2017-07-06	fix interpreter version of != which was broken for vector/range comparisons.	Robert Norton

2017-07-06	substitute all uses of mod_big_int and div_big_int for Z.rem and Z.div which ↵	Robert Norton
	have correct rounding behaviour. Missed these when changing quot and mod functions.
2017-07-06	implement abs function correctly for ocaml shallow embedding.	Robert Norton

2017-07-06	fix dodgy get_min/max_representable functions. Looks like an attempt at ↵	Robert Norton
	optimisation went wrong.
2017-07-04	further testing of sail library.	Robert Norton

2017-07-04	change to cgettype -- returns -1 if not sealed instead of 0.	Robert Norton

2017-07-03	Update to copytype and ccseal -- now use belt and braces approach when ↵	Robert Norton
	handling unsealed capabilities by clearing tag and setting cursor to -1. Also CCSeal got an encoding.
2017-06-30	add more tests for sail library. Can't compile entire file due to sail ↵	Robert Norton
	performance bug or infinite loop. Add some missing shallow embedding funcitons.
2017-06-29	beginnings of a sail library test suite.	Robert Norton

2017-06-22	fix three different copies of the hardware_quot function to do proper ↵	Robert Norton
	trucation towards zero. Previous version was incorrect if result was exact and a<0 and b>0.
2017-06-22	add a 'print' built-in function handy for writing sail tests.	Robert Norton

2017-06-22	fix a typo spotted in CPtrCmp instruction -- CLEU was using signed ↵	Robert Norton
	comparison instead of unsigned.
2017-06-22	revised ccopytype with check for offset being in bounds and clearing tag ↵	Robert Norton
	instead of using magic value if unsealed. Also corresponding CCSeal instruction which degrades to a cmove if ct.tag is unset.
2017-06-16	prefer arithmetic on integers followed by cast to bit[64] in CCopyType.	Robert Norton

2017-06-16	remove unnecessary local variable definitions copy and pasted from cbuildcap.	Robert Norton

2017-06-16	fix previous commit so that it builds.	Robert Norton

2017-06-16	implement new CBuildCap and CCopyType instrucitons for ISAv6.	Robert Norton

2017-06-14	Add a work-in-progress version of sail_values.lem	Brian Campbell
	that uses the new Lem machine words library.
2017-06-13	Add Makefile and ROOT for Isabelle library	Thomas Bauereiss

2017-06-05	Attempt to make Lem-prettyprinting of function clauses more robust	Thomas Bauereiss
	Instead of abusing patterns as expressions, bind patterns to names (if they are more complex than an identifier or literal and don't have a name already) and generate expressions referring to those names (which we then pass as arguments to the auxiliary functions).
2017-06-05	Fix pretty-printing of function clauses with wildcards for Lem	Thomas Bauereiss
	Before, wildcards sometimes ended up in the arguments to the function call on the RHS, in particular when using vector patterns (which implicitly introduce wildcards for the order and index parameters).
2017-06-02	Add tag memory to Lem shallow embedding	Thomas Bauereiss

2017-05-28	fixed exmem	Shaked Flur

2017-05-26	fix run_with builds after build_context gained an extra argument.	Robert Norton

2017-05-26	add cmovz and cmovn conditional capability move instructions new in ISAv6.	Robert Norton

2017-05-26	Update ctoptr instruction to check that all of ct is within bounds of cb and ↵	Robert Norton
	that cb is not sealed as per ISAv6.
2017-05-26	in ISAv6 cjr and cjalr are permitted on local capabilities.	Robert Norton

2017-05-26	add support for the new ccall selector 1 implementation that directly ↵	Robert Norton
	unseals capabilities.
2017-05-24	fixed missing _tag bits	Shaked Flur

2017-05-24	Merge branch 'master' of bitbucket.org:Peter_Sewell/sail	Shaked Flur
	# Conflicts: # src/lem_interp/interp.lem # src/lem_interp/interp_inter_imp.lem # src/lem_interp/interp_interface.lem # src/parser.mly # src/pretty_print_lem.ml
2017-05-24	added the exmem effect for AArch64 store-exclusive	Shaked Flur

2017-05-24	Change types of MEMr_tag, MEMval_tag and co. so that tag is separate from ↵	Robert Norton
	data and invent rmemt and wmvt effects for them. Extend the interpreter context to include lists of tagged memory read and write functions. The memory model must round down the address to the nearest capability aligned address when reading/writing tags. Remove TAGw which is no longer needed as a result.
2017-05-24	it turns out that Zarith has a divide function which does truncation towards ↵	Robert Norton
	zero but it is not exposed via Bit_int_Z. Use it instead of rolling our own. Also ocaml / and mod already do the right thing.
2017-05-10	Fix type error in CGetLen	Thomas Bauereiss
	For some reason, Lem did not like the call to "min" when exporting to Isabelle. Replacing "min" with an if-then-else expression solves this. This is also in line with the CHERI spec, which actually uses an if block.
2017-05-10	Further to Thomas's commit remove the duplicate declarations of max_otype ↵	Robert Norton
	and have_cp2.
2017-05-10	Add stubs for TAGw	Thomas Bauereiss
	Tagged memory seems to be currently missing in the Lem shallow embedding of (CHERI-)MIPS.
2017-05-10	Comment out duplicate definitions in cheri_types.sail	Thomas Bauereiss
	They are already defined in cheri_prelude_common.sail
2017-05-10	Build Cheri_embed_types.thy together with Cheri_embed_sequential.thy	Thomas Bauereiss

2017-05-08	add make rules to (attempt to) build arm and power ml.	Robert Norton

2017-05-08	add target for building ocaml shallow embed for arm.	Robert Norton

2017-05-08	add some missing things in sail_values and make big_int version the default ↵	Robert Norton
	for set_vector_subrange_bit.
2017-05-08	add error messages for unhandled pattern match nodes in ocaml pretty printer.	Robert Norton

2017-05-08	put failwith in brackets to avoid parse error.	Robert Norton

2017-05-02	doc	Peter Sewell

2017-04-27	avoid out of bounds indicies in cheri128 decompression functions.	Robert Norton

2017-04-27	also trace memory writes.	Robert Norton

2017-04-27	remove undefined value from cheri 128 spec. The ocaml shallow embedding ↵	Robert Norton
	cannot handle undef structs and the value should not be used (could be option type but wanted a similar interface to incCapOffset and setCapOffset).
2017-04-27	fix incorrect vector index in cheri128 spec. Should ideally have been caught ↵	Robert Norton
	by type checker...
2017-04-27	fix cheri128 model referring to wrong registers and not capreg printing.	Robert Norton