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39 Commits

Author SHA1 Message Date
Nick Gasson fd4018cb33 Fix IVL_LPM_MUX where inputs are different signedness to outputs 2008-10-05 17:08:19 +01:00
Nick Gasson b40de5ccb0 Implement IVL_LPM_CMP_NE(E) 
Looks like I forgot this one
 2008-10-05 17:04:19 +01:00
Nick Gasson ff766899b0 Add IVL_LPM_CMP_GT 2008-09-02 19:07:38 +01:00
Nick Gasson 122890fef4 Make sure LPM expression is cast to the output type 
This fixes some signed/unsigned bugs identified by the signedX tests.
 2008-09-02 19:02:54 +01:00
Nick Gasson 7865264de0 Implement IVL_LPM_REPEAT 2008-08-18 15:34:58 +01:00
Nick Gasson e4d0a92d7c Division and modulus operators 2008-08-07 14:18:26 +01:00
Nick Gasson 8d7b03576c Correctly implement unary XNOR 
Forgot to negate the output.
 2008-08-05 10:38:43 +01:00
Nick Gasson 0e2628a3fb Minimal implementation of IVL_LPM_MUX 
This handles the (common) case of the select being only
1 bit wide. Implemented as a concurrent assignment with
a `when' clause.
 2008-08-03 12:46:50 +01:00
Nick Gasson 45dfa28dba Remember signal pin a nexus was attached to 
Also modify nexus_to_var_ref to set the correct array
offset when the signal is an array (the offset comes
from the pin).
 2008-08-03 11:41:26 +01:00
Nick Gasson 09f3eb4a36 Don't bother calling reduction function if argument is std_logic 2008-08-01 16:27:55 +01:00
Nick Gasson d94dac28a8 Remove redundant lpm_output 2008-07-29 13:08:13 +01:00
Nick Gasson b9cecbef64 Make sure LPM comparison result is std_logic not Boolean 2008-07-27 19:05:49 +01:00
Nick Gasson 3ca85491ee Unary AND and XOR 2008-07-20 16:41:57 +01:00
Nick Gasson 77508b9afa Reduction OR operator 2008-07-20 15:10:00 +01:00
Nick Gasson df4a380e42 Fix implementation of IVL_LPM_UFUNC 
Function name was not correct.
 2008-07-18 14:31:12 +01:00
Nick Gasson 8b6b111541 Add IVL_LPM_CMP_EQ 2008-07-18 11:58:26 +01:00
Nick Gasson fd8f01e317 Add IVL_LPM_CMP_GE 2008-07-18 11:56:00 +01:00
Nick Gasson 7677b59650 Make sure offset of IVL_LPM_ARRAY is integer 2008-07-17 16:41:34 +01:00
Nick Gasson f62a00bedb Fix LPM binop with different signedness 
Need to explicitly cast between signed/unsigned to
make sure both arguments have the same type or the
VHDL won't compile.
 2008-07-16 16:20:08 +01:00
Nick Gasson 646a6056a2 Add IVL_LPM_CMP_EEQ support 2008-07-16 12:50:55 +01:00
Nick Gasson 45e289d32d Implement IVL_LPM_SHIFTL/R 2008-07-15 18:01:37 +01:00
Nick Gasson b8e758edf0 Refactor LPM code 2008-07-15 14:09:24 +01:00
Nick Gasson e331e4831b Fix nexus_to_expr where nexus has IVL_LPM_SELECT_PV 2008-07-14 11:53:38 +01:00
Nick Gasson bd5cc96956 Correct vector sizes for bit select 2008-07-08 00:20:31 +01:00
Nick Gasson a0dbb1aa5d Fix more bugs in part selects 2008-07-07 21:45:27 +01:00
Nick Gasson 860a74ddd8 Allow LPMs in port maps 2008-07-07 20:41:29 +01:00
Nick Gasson 2bb645e0bc Refactor LPM code to allow lpm->expr function 2008-07-07 19:46:18 +01:00
Nick Gasson 47db80315c Add sign extension LPM 2008-07-07 19:27:52 +01:00
Nick Gasson 6b73cc39a5 Add Active_High support func and fix LPM part select 2008-07-07 16:17:54 +01:00
Nick Gasson 89cdbf63be Reduction LPM types 2008-07-07 15:45:20 +01:00
Nick Gasson bdf5ee7ab7 Concat LPM 2008-07-07 14:48:57 +01:00
Nick Gasson 4fac825457 Add PV part select type 2008-07-03 14:45:54 +01:00
Nick Gasson edfae1abfb PV LPM part select type 2008-07-01 11:02:49 +01:00
Nick Gasson e08e29c8b4 Add UFUNC LPM type 2008-06-30 16:35:29 +01:00
Nick Gasson b82ca28190 Add XOR logic type and fix part select 2008-06-30 16:18:55 +01:00
Nick Gasson 081f397460 Implement LPM part select 2008-06-27 14:58:03 +01:00
Nick Gasson 63b1887ff2 Refactor code to use the new vhdl_scope class 2008-06-24 18:52:25 +01:00
Nick Gasson 8d0afa632d Subtraction and multiplication LPM devices 2008-06-16 19:49:24 +01:00
Nick Gasson 561953e494 Minial LPM to support continuous assignments 2008-06-16 19:41:01 +01:00