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iverilog/vpi/system.sft

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Add a .sft file for the system functions.
2004-06-17 16:47:22 +02:00
#
# This is the system function descriptor table for the
# builtin (system) functions.
#
Add missing probabilistic functions and compiletf routines. Add the missing probabilistic functions and add compiletf routines for all the functions. The original calltf routines have been modified as appropriate. The base functions are straight copies from the standard. I have visually verified the curves with 5,000 points and they look correct.
2007-07-20 05:58:35 +02:00
$random vpiSysFuncInt
Declare $rtoi in system.sft instead of the sys_funcs table. The sys_funcs table should be left to those functions that are handled internally by the compiler. Really, the internal sys_funcs table is a legacy from the days before the compiler supported system function tables in the .sft format.
2008-01-17 21:48:02 +01:00
$rtoi vpiSysFuncInt
[PATCH] Implement System Verilog $urandom and $urandom_range functions. This patch implements the System Verilog $urandom() and $urandom_range() functions. There are no check to verify that $urandom_range is only given unsigned arguments. If you give it a negative value the bit pattern will be interpreted as a unsigned number.
2007-10-02 05:18:48 +02:00
$urandom vpiSysFuncSized 32 unsigned
$urandom_range vpiSysFuncSized 32 unsigned
Add missing probabilistic functions and compiletf routines. Add the missing probabilistic functions and add compiletf routines for all the functions. The original calltf routines have been modified as appropriate. The base functions are straight copies from the standard. I have visually verified the curves with 5,000 points and they look correct.
2007-07-20 05:58:35 +02:00
$dist_uniform vpiSysFuncInt
$dist_normal vpiSysFuncInt
$dist_exponential vpiSysFuncInt
$dist_poisson vpiSysFuncInt
$dist_chi_square vpiSysFuncInt
$dist_t vpiSysFuncInt
$dist_erlang vpiSysFuncInt
Add $clog2 function. This patch adds the $clog2 system function. It also makes this function work as a constant function. The runtime version still needs to be updated to use an integer based version instead of the current double based method. The double method suffers from rounding errors.
2008-07-31 23:05:27 +02:00
$clog2 vpiSysFuncInt
Add the stochastic (queue) tasks/function This patch adds full support for the stochastic tasks/functions except the mean inter-arrival and average wait statistics are not currently available. These will be added in a later patch. This implementation goes a bit beyond the standard and supports the following: 1. The job and inform arguments support 32 bit four state values. 2. The id for all routines, the job and inform arguments for $q_add(), the statistic code for $q_exam() along with the queue type and maximum length arguments for $q_initialize() can be less than or equal to 32 bits. The argument will be sign extended if needed to fill the internal 32 bit value. 3. The job and inform arguments to $q_remove() and the status argument for all the routines must be 32 bits, but do not have to be an integer variable (e.g. a 32 bit register or part select is OK). 4. An undefined bit in the id argument for any of the routines will return a status of 2 (undefined queue id). Undefined bits are not automatically converted to zero. 5. Undefined bits in the $q_initialize() queue type and maximum length arguments or the $q_exam() statistic code argument are also flagged as an error (are not converted to zero). 6. The $q_full() function returns 2 on error, the other routines that return a value $q_remove() job/inform arguments and the $q_exam() statistic value argument will usually return x on error. 7. An invalid statistic code will set the $q_exam() status to 8. 8. The $q_exam() statistic value argument can be 32 bits or larger. This allows returning large statistical time values. 9. All time values are internally saved in simulation time units. They will be converted to the calling module's time unit (with rounding) before they are returned. 10. If a $q_exam() statistical value is too large to fit into the variable the maximum positive value will be returned and the status code will be set to 9 (value is too large). 11. If a statistical value is currently undefined $q_exam() will return 10 (no statistical information) (e.g. using code 5 on an empty queue).
2011-04-11 02:16:25 +02:00
$q_full vpiSysFuncInt
Add $simparam and other fixes. This patch adds $simparam and $simparam$str from Verilog-A. The analog simulator parameters return 0.0 or N/A. The vvp_cpu_wordsize system function has been moved into the $simparam call and is now named CPUWordSize. This patch also starts the factoring of common code in the vpi directory. Some routines were renamed. The priv.c file was renamed to sys_priv.c to match the include file. System functions can now have strings put to their output.
2008-06-03 04:23:48 +02:00
Add the $abstime() system function from VASM-2.3. This patch adds the $abstime() system function from VAM-2.3. It returns the current time as a real value scaled to seconds.
2009-01-10 00:24:55 +01:00
$abstime vpiSysFuncReal
Add $simparam and other fixes. This patch adds $simparam and $simparam$str from Verilog-A. The analog simulator parameters return 0.0 or N/A. The vvp_cpu_wordsize system function has been moved into the $simparam call and is now named CPUWordSize. This patch also starts the factoring of common code in the vpi directory. Some routines were renamed. The priv.c file was renamed to sys_priv.c to match the include file. System functions can now have strings put to their output.
2008-06-03 04:23:48 +02:00
$simparam vpiSysFuncReal
$simparam$str vpiSysFuncSized 1024 unsigned
Preliminary support for $table_model. This patch adds preliminary support for implementing the $table_model() function for Verilog-A. It is not currently functional, but the VPI interface routines and data file parsing are mostly complete. The big things left are building the data structures and adding the interpolation and extrapolation routines. We also need to fix vvp to identify constant strings/parameters in a structural context.
2011-04-18 20:29:07 +02:00
$table_model vpiSysFuncReal
Detect and implement string.len() method, and string[index] expressions Implement the string.len() method in the system.vpi, and implement the string[index] method in vvp.
2012-07-01 02:05:25 +02:00
vpi: Added $ivl_string_method$to_vec for strings to vectors conversion.
2014-11-05 11:24:07 +01:00
$ivl_string_method$len vpiSysFuncInt
$ivl_string_method$to_vec vpiSysFuncVoid