Commit Graph

152 Commits

Author SHA1 Message Date
Clifford Wolf 4101cfe810 Fixed the nontrivial compressed ISA bug found by tracecmp2 2016-09-16 13:15:21 +02:00
Clifford Wolf c209c016b3 More fixes related to assertpmux checks 2016-09-13 23:21:31 +02:00
Clifford Wolf 5bea3f9917 Added more asserts for the memory interface 2016-09-13 19:34:14 +02:00
Clifford Wolf 2f3e3a6910 Merge pull request #21 from wallclimber21/mem_wdata
Only clock mem_wdata when necesssary
2016-09-08 09:42:51 +02:00
Tom Verbeure 38a760daf8 Fix tabs 2016-09-07 20:34:28 -07:00
Tom Verbeure 80aa70ec2e Only clock mem_wdata when necessary 2016-09-07 20:32:32 -07:00
Clifford Wolf 44d6feba2a Using assertpmux in "make check" 2016-09-07 12:40:19 +02:00
Clifford Wolf da37498191 Two minor bugfixes 2016-09-06 19:58:03 +02:00
Clifford Wolf 7f946d0f84 Added misisng MUL_CLKGATE stage 2016-09-06 01:02:12 +02:00
Clifford Wolf 5fdee952c9 Added picorv32_pcpi_fast_mul MUL_CLKGATE 2016-09-05 22:37:52 +02:00
Clifford Wolf e45cc362a7 More picorv32_pcpi_mul timing improvements 2016-09-04 18:34:11 +02:00
Clifford Wolf e91c1422a2 Added optional FFs to picorv32_pcpi_fast_mul 2016-09-04 12:44:12 +02:00
Clifford Wolf d5b7e9e175 Minor bugfix/cleanup (mostly for formal verification) 2016-09-03 14:40:13 +02:00
Clifford Wolf c9519df01b Moved cpuregs read/write to extra always blocks 2016-08-31 11:50:07 +02:00
Clifford Wolf 82d837bf96 Be more explicit about single register file write port 2016-08-31 00:08:33 +02:00
Clifford Wolf bfba9b3eb3 Bugfix in picorv32_pcpi_fast_mul 2016-08-30 11:14:46 +02:00
Clifford Wolf b9ed4364d4 Merge branch 'fast_mul_opt' of https://github.com/wallclimber21/picorv32 2016-08-30 11:12:42 +02:00
Clifford Wolf cefe09b8d4 Minor fixes/cleanups in mul reset logic 2016-08-30 11:12:16 +02:00
Tom Verbeure 9201bff2ef Reduce rs1, rs2 from 64 to 33 bits to make life for synthesis tools easier. 2016-08-29 18:00:49 -07:00
Clifford Wolf a6210c06d4 Added picorv32_pcpi_fast_mul core 2016-08-29 23:38:05 +02:00
Clifford Wolf 90070736d6 More asserts 2016-08-29 22:44:15 +02:00
Clifford Wolf 28fe45ffe9 Added more asserts to picorv32, more smtbmc examples 2016-08-29 17:23:00 +02:00
Clifford Wolf 72158ba4a5 Some minor cleanups 2016-08-26 23:56:04 +02:00
Clifford Wolf d1d3c3c5e1 Added next gen yosys-smtbmc verification scripts 2016-08-26 23:39:39 +02:00
Clifford Wolf 98d248d2c2 Finalized tracer support 2016-08-26 14:54:27 +02:00
Clifford Wolf 7094e61af7 Added tracer support (under construction) 2016-08-25 14:15:42 +02:00
Clifford Wolf 8043c90a04 Added REGS_INIT_ZERO parameter 2016-08-24 15:20:23 +02:00
Clifford Wolf 288a043aca Fixed use-before-declaration problem with VCS 2016-06-09 11:57:23 +02:00
Clifford Wolf bf062e39ac Added STACKADDR parameter 2016-06-07 17:05:02 +02:00
Clifford Wolf f4bb91b060 RISC-V ISA 2.1 now calls "sbreak" officially "ebreak" 2016-06-06 10:46:52 +02:00
Clifford Wolf 490a734519 Encode in q0 LSB if interrupted instruction is compressed 2016-06-01 12:39:00 +02:00
Clifford Wolf fd18475e23 Do not wait for PCPI core when handling SCALL and SBREAK 2016-06-01 11:57:04 +02:00
Steve Kerrison 38d51a3383 Deassert pcpi_valid upon asserting sbreak IRQ
This fixes #8
2016-05-31 19:54:16 +01:00
Clifford Wolf 63c28e4389 Update dbg_ signals synchronous to the actual launch of the new insn 2016-04-14 00:50:18 +02:00
Clifford Wolf fb3178c4b7 Fixed dbg_ signals: no latches (formal verification doesn't like latches) 2016-04-13 17:29:33 +02:00
Clifford Wolf 436f162951 Minor change in DEBUGASM output 2016-04-13 15:30:02 +02:00
Clifford Wolf faa1c1a159 Added SBREAK handling for CATCH_ILLINSN=0 2016-04-13 15:09:49 +02:00
Clifford Wolf 262a9085bb Streamlined debug signals 2016-04-13 13:49:40 +02:00
Clifford Wolf 49aef71641 Some area improvements 2016-04-13 12:27:00 +02:00
Clifford Wolf 435232eb85 Use ifdef instead of generate if so we don't confuse Vivado 2016-04-13 12:21:47 +02:00
Clifford Wolf 2c76f7d61b Added (by default disabled) register file access wires for debugging 2016-04-12 20:55:46 +02:00
Clifford Wolf 789a411ead Bugfix for CATCH_ILLINSN <-> WITH_PCPI interaction 2016-04-12 20:55:06 +02:00
Clifford Wolf e9c7ea6b5d Added ENABLE_COUNTERS64 config parameter 2016-04-12 18:04:16 +02:00
Clifford Wolf 2fdafb9c16 Added BARREL_SHIFTER config parameter 2016-04-12 17:30:31 +02:00
Clifford Wolf b41c0e723c Do not re-load a word to read the 16 bit opcode in the upper half 2016-04-11 16:48:57 +02:00
Clifford Wolf b08d9400bd Do not load next word when loading a 16 bit opcode from the upper half of a 32bit word 2016-04-11 14:32:25 +02:00
Clifford Wolf 2cab981862 Fixed signed division by zero handling 2016-04-10 17:15:17 +02:00
Clifford Wolf 00dd6ac38e Added ENABLE_DIV and picorv32_pcpi_div 2016-04-10 16:54:35 +02:00
Clifford Wolf fce9656604 Bugfix in memory interface (related to compressed ISA) 2016-04-10 13:25:28 +02:00
Clifford Wolf aa17d58784 Bugfix in C.SRAI implementation 2016-04-09 14:27:28 +02:00
Clifford Wolf ef8014eebd Bugfix in C.ADDI4SPN implementation 2016-04-09 14:09:43 +02:00
Clifford Wolf d7894ca41a Merge branch 'master' into compressed
Conflicts:
	picorv32.v
2016-02-03 16:21:53 +01:00
Clifford Wolf d2e20edaab Cleanup regarding pcpi_timeout 2015-12-22 11:17:24 +01:00
Clifford Wolf 649144ba5d Keep mem_wstrb low even when mem_valid is low anyways 2015-12-22 11:17:11 +01:00
Clifford Wolf 5953e57899 Towards compressed ISA support 2015-11-20 16:45:09 +01:00
Clifford Wolf f8eed23a68 Towards compressed ISA support 2015-11-19 14:01:33 +01:00
Clifford Wolf 9d5f8ad8e6 Towards compressed ISA support 2015-11-19 04:02:00 +01:00
Clifford Wolf c4e711209c Towards compressed ISA support 2015-11-18 19:23:11 +01:00
Clifford Wolf 3aed9f7c65 Towards compressed ISA support 2015-11-18 15:55:29 +01:00
Clifford Wolf 8174d8fb7e Towards compressed ISA support 2015-11-15 23:24:38 +01:00
Clifford Wolf bfd2a4e0fa Towards compressed ISA support 2015-11-15 16:04:04 +01:00
Clifford Wolf bf4b0f3a63 Towards compressed ISA support 2015-11-14 19:22:00 +01:00
Clifford Wolf 60b9216856 Towards compressed ISA support 2015-11-14 14:11:21 +01:00
Clifford Wolf db26b51afe Towards compressed ISA support 2015-11-13 14:16:32 +01:00
Clifford Wolf 8eaeebf486 Progress in "make check" 2015-10-15 15:45:19 +02:00
Clifford Wolf 07f28068f6 Added "make check" 2015-10-14 23:26:04 +02:00
Clifford Wolf 16f97a86a1 Reset bugfix (bug found via scripts/smt2-bmc/mem_equiv.*) 2015-08-13 13:30:21 +02:00
Clifford Wolf bf7f984d42 Refactoring of TWO_CYCLE_ALU 2015-07-08 23:15:14 +02:00
Clifford Wolf dd30b57ea6 Added TWO_CYCLE_ALU parameter 2015-07-08 20:17:03 +02:00
Clifford Wolf b6c4c2eeb9 Added TWO_CYCLE_COMPARE 2015-07-07 22:51:52 +02:00
Clifford Wolf 9c028fc965 Added missing LD_RS1 debug statements 2015-07-02 14:51:28 +02:00
Clifford Wolf ab503d5756 Being more aggressive with parallel cases 2015-07-02 12:55:05 +02:00
Clifford Wolf c10125eb5c Added TWO_STAGE_SHIFT parameter 2015-07-02 12:29:06 +02:00
Clifford Wolf 853ce91300 Added `debug macro 2015-07-02 12:17:45 +02:00
Clifford Wolf c48a3b2434 Removed trailing whitespaces 2015-07-02 10:49:35 +02:00
Clifford Wolf 34193bf9df Added CATCH_MISALIGN and CATCH_ILLINSN 2015-07-01 21:20:51 +02:00
Clifford Wolf f6fe27ecbf After some profiling: one-hot FSM encoding 2015-07-01 21:20:31 +02:00
Clifford Wolf 4a9fda0737 Improvements in PCPI MUL core 2015-06-30 16:51:26 +02:00
Clifford Wolf 7417a3e249 Added LATCHED_IRQ parameter 2015-06-29 07:54:47 +02:00
Clifford Wolf 46026ba985 Added ENABLE_IRQ_QREGS and ENABLE_IRQ_TIMER 2015-06-28 22:09:51 +02:00
Clifford Wolf 21157b8f1d Cleanups in PCPI interface 2015-06-28 15:41:55 +02:00
Clifford Wolf b076d72806 Fixed PCPI instr prefetching 2015-06-28 14:51:53 +02:00
Clifford Wolf 1f99de5117 Improvements in picorv32_pcpi_mul 2015-06-28 13:07:50 +02:00
Clifford Wolf 4c15e05298 Moved ENABLE_MUL from picorv32_axi to picorv32 2015-06-28 12:19:49 +02:00
Clifford Wolf 034e1a6af7 Added PCPI to picorv32_axi 2015-06-27 23:54:11 +02:00
Clifford Wolf 7d1a484812 Implemented picorv32_pcpi_mul 2015-06-27 23:53:51 +02:00
Clifford Wolf dd8ed3c877 Added pcpi_wait interface 2015-06-26 23:48:50 +02:00
Clifford Wolf 0be990bd04 Added Pico Co-Processor Interface (PCPI) 2015-06-26 23:15:35 +02:00
Clifford Wolf 5d4ce82050 Implemented waitirq instruction 2015-06-26 10:39:08 +02:00
Clifford Wolf 9a4a06d981 Refactoring of IRQ handling 2015-06-26 10:03:37 +02:00
Clifford Wolf 23b700cf73 Added basic IRQ support 2015-06-25 14:08:39 +02:00
Clifford Wolf bb7f500489 Removed unnecessary "jal" complexity 2015-06-09 07:40:30 +02:00
Clifford Wolf a9532f81ed Refactored instruction decoder 2015-06-08 09:08:19 +02:00
Clifford Wolf 32208c0b70 Improved timing for "decoded_imm_uj" 2015-06-07 22:50:49 +02:00
Clifford Wolf 34d9dea8c7 Added support for dual-port register file 2015-06-07 20:53:19 +02:00
Clifford Wolf 60867e10a9 minor optimizations 2015-06-07 20:08:04 +02:00
Clifford Wolf 8e3e0bfba0 Improved "decoder_trigger" handling 2015-06-07 19:49:38 +02:00
Clifford Wolf bbbcea2faa Added look-ahead write interface 2015-06-07 12:11:20 +02:00
Clifford Wolf e84f044bc5 Major redesign of main FSM 2015-06-07 11:49:47 +02:00
Clifford Wolf bc8ffd2ecb Added memory "look-ahead" read interface 2015-06-06 20:50:53 +02:00