Binary Operations Cfloat8_1_4_3, Cfloat8_1_5_2

This readme describes Binary Operations Multiply, Divide for Cfloat8_1_4_3, Cfloat8_1_5_2. Step-by-step approach followed,

1. Started performing single element values to perform divide, multiply operations.
2. Followed the List of elements to perform divide, multiply operations.
3. The initial design thought of using separate interface modules for Cfloat8_1_4_3 & Cfloat8_1_5_2
4. BIAS values adjusted before and after calculations
5. Stage wise: faced challenges in implementing the stage and tried in separate module but it took more time to resolve compilation errors.
6. At present the input valued n=5 is assigned as hardcoded, during development tried to read the input values from a file.
7. Faced challenges to resolve compilation errors and took more time.
8. File Operations: Able to read data from file assigning the read values to Cfloat8_1_4_3 or Cfloat8_1_5_2 need some more time to resolve compile errors. The char read from the file is in decial and that is converted to 0 or 1 as per ASCII table value. (WIP-Tb_BOCfloat8_1_4_3_afile.bsv )

1. Ubuntu Details: Distributor ID: Ubuntu Description: Ubuntu 22.04.3 LTS Release: 22.04 Codename: jammy

2. Bluespec Bluespec Compiler, version 2021.12.1 (build fd501401) This is free software; for source code and copying conditions, see https://github.com/B-Lang-org/bsc

Execute in the below order.

1. $ bsc -u -sim the_CustomDataTypes.bsv
2. $ bsc -u -sim the_CustomDataTypes2.bsv
3. $ bsc -u -sim BOCfloat8_1_4_3.bsv
4. $ bsc -u -sim BOCfloat8_1_5_2.bsv
5. $ bsc -u -sim Tb_BOCfloat8_1_4_3.bsv
6. $ bsc -e mkTb -sim -o ./mkTb_sim
7. $ ./mkTb_sim

1. Custom Data Type declaration for Cfloat8_1_4_3, total of 8 bits,

• 1 = bit for sign
• 4 = bits for exponent
• 3 = bits for fraction

1. Custom Data Type declaration for Cfloat8_1_5_2, total of 8 bits,

• 1 = bit for sign
• 5 = bits for exponent
• 2 = bits for fraction

1. Interface module to perform divide, multiply binary ops for Cfloat8_1_4_3.

1. Interface module to perform divide, multiply binary ops for Cfloat8_1_5_2.

1. Main file to perform the below binar ops.
2. step-by-step approach followed, started performing single element values to perform divide, multiply operations.
3. Then, followed the List of elements to perform divide, multiply operations.
4. The initial design thought of using separate interface modules for Cfloat8_1_4_3 & Cfloat8_1_5_2
5. BIAS values adjusted before and after calculations
6. Stage wise: faced challenges in implementing the stage and tried in separate module but it took more time to resolve compilation errors.
7. At present the input valued n=5 is assigned as hardcoded, during development tried to read the input values from a file. faced challenges to resolve compilation errors and took more time. only fgetc method shows in the document but when tried to read that value it returns decimal 49 and it take more time to understand this value or to interpret this value.

1. Below Label Names shows start and end of Section-1. Label Name: Binary Operatons Cfloat8_1_4_3 Starts Label Name: Binary Operatons Cfloat8_1_4_3 Ends
2. Before start using List tried with using individual variables a, b
3. Adjusted to BIAS before and after exponent calculation
4. Verification: variables c, d used for local verification for divide, multiplication ops
5. Verification via interface methods: res_d, res_m variables calculated via interface methods for divide, multiplication

1. Below Label Names shows start and end of Section-2. Label Name: Binary Operatons Cfloat8_1_5_2 Starts Label Name: Binary Operatons Cfloat8_1_5_2 Ends
2. Before start using List tried with using individual variables aa, bb
3. Adjusted to BIAS before and after exponent calculation
4. Verification: variables cc, dd used for local verification for divide, multiplication ops
5. Verification via interface methods: res_dd, res_mm variables calculated via interface methods for divide, multiplication

1. Below Label Names shows start and end of Section-3. Label Name: Binary Operatons Cfloat8_1_4_3 - List of Values Starts Label Name: Binary Operatons Cfloat8_1_4_3 - List of Values Ends
2. Assigned list of values(n = 5) to below variables, displayed for verification Cfloat8_1_4_3 a_list[5]; Cfloat8_1_4_3 b_list[5];
3. Verification: List of values performed for binary operations divide, multiplication, displayed for verification
4. Adjusted to BIAS before and after exponent calculation

1. Below Label Names shows start and end of Section-4. Label Name: Binary Operatons Cfloat8_1_5_2 - List of Values Starts Label Name: Binary Operatons Cfloat8_1_5_2 - List of Values Ends
2. Assigned list of values(n = 5) to below variables, displayed for verification Cfloat8_1_4_3 aa_list[5]; Cfloat8_1_4_3 bb_list[5];
3. Verification: List of values performed for binary operations divide, multiplication, displayed for verification
4. Adjusted to BIAS before and after exponent calculation

1. Final executable file

1. This is WIP code section to read data from file. At present able to read from file assigning values to Cfloat8_1_4_3 is taking time as to resolve the compile error.

Note: The above mentioned files are used. There are many other .bsv & its related files kept in the project folder and those were created,used to resolve compilation errors & to test some specific scenario or code sections.

=======================================================================================================================================

Screenshot image output:

• ![console output-1] (https://github.com/amsip/bluespec_binaryops_cfloat_8143_8152/blob/master/output-1.png)
• ![console output-2] (https://github.com/amsip/bluespec_binaryops_cfloat_8143_8152/blob/master/output-2.png)

• ![sys output-1] (https://github.com/amsip/bluespec_binaryops_cfloat_8143_8152/blob/master/sys-op-1.png)
• ![sys output-2] (https://github.com/amsip/bluespec_binaryops_cfloat_8143_8152/blob/master/sys-op-2.png)

$ bsc -sim -u -elab -v Tb_BOCfloat8_1_4_3.bsv

Bluespec Compiler, version 2021.12.1 (build fd501401)

This is free software; for source code and copying conditions, see

https://github.com/B-Lang-org/bsc

Invoking command line:

bsc -sim -u -elab -v Tb_BOCfloat8_1_4_3.bsv

checking package dependencies

starting depend

starting vpp

vpp done

elapsed time: CPU 0.00s, real 0.00s

starting bsvlex

bsvlex done

elapsed time: CPU 0.02s, real 0.02s

starting parsed

parsed done

elapsed time: CPU 0.04s, real 0.05s

starting vpp

vpp done

elapsed time: CPU 0.00s, real 0.00s

starting bsvlex

bsvlex done

elapsed time: CPU 0.00s, real 0.00s

starting parsed

parsed done

elapsed time: CPU 0.00s, real 0.00s

starting vpp

vpp done

elapsed time: CPU 0.00s, real 0.00s

starting bsvlex

bsvlex done

elapsed time: CPU 0.00s, real 0.00s

starting parsed

parsed done

elapsed time: CPU 0.00s, real 0.00s

starting vpp

vpp done

elapsed time: CPU 0.00s, real 0.00s

starting bsvlex

bsvlex done

elapsed time: CPU 0.00s, real 0.00s

starting parsed

parsed done

elapsed time: CPU 0.00s, real 0.00s

starting vpp

vpp done

elapsed time: CPU 0.00s, real 0.00s

starting bsvlex

bsvlex done

elapsed time: CPU 0.00s, real 0.00s

starting parsed

parsed done

elapsed time: CPU 0.00s, real 0.00s

depend done

elapsed time: CPU 0.07s, real 0.09s

All packages are up to date.

total

elapsed time: CPU 0.07s, real 0.09s

online reference, user guide from the bsc installed folder.

File Name: Tb_config_bias.bsv

$ bsc -u -sim Tb_config_bias.bsv checking package dependencies Error: "Tb_config_bias.bsv", line 7, column 36: (P0005) Unexpected `;'; expected module interface or dynamic (port-like) args

File Name: Tb_BOCfloat8_1_4_3_afile.bsv

$ bsc -u -sim Tb_BOCfloat8_1_4_3_afile.bsv checking package dependencies compiling Tb_BOCfloat8_1_4_3_afile.bsv code generation for mkTb starts Warning: "Prelude.bs", line 974, column 9: (G0024) The function unfolding steps interval has been exceeded when unfolding Prelude.Bits~Prelude.Bit~k~k'. The current number of steps is 100000. Next warning at 200000 steps. Elaboration terminates at 1000000 steps. During elaboration of the body of rule fileopen' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 45, column 14. During elaboration of mkTb' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 14, column 16. Warning: "Prelude.bs", line 974, column 9: (G0024) The function unfolding steps interval has been exceeded when unfolding Prelude.BitsPrelude.Bitkk'. The current number of steps is 200000. Next warning at 300000 steps. Elaboration terminates at 1000000 steps. During elaboration of the body of rule fileopen' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 45, column 14. During elaboration of mkTb' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 14, column 16. Warning: "Prelude.bs", line 974, column 9: (G0024) The function unfolding steps interval has been exceeded when unfolding Prelude.Bits~Prelude.Bit~k~k'. The current number of steps is 300000. Next warning at 400000 steps. Elaboration terminates at 1000000 steps. During elaboration of the body of rule fileopen' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 45, column 14. During elaboration of mkTb' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 14, column 16. Warning: "Prelude.bs", line 974, column 9: (G0024) The function unfolding steps interval has been exceeded when unfolding Prelude.BitsPrelude.Bitkk'. The current number of steps is 400000. Next warning at 500000 steps. Elaboration terminates at 1000000 steps. During elaboration of the body of rule fileopen' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 45, column 14. During elaboration of mkTb' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 14, column 16. Warning: "Prelude.bs", line 974, column 9: (G0024) The function unfolding steps interval has been exceeded when unfolding Prelude.Bits~Prelude.Bit~k~k'. The current number of steps is 500000. Next warning at 600000 steps. Elaboration terminates at 1000000 steps. During elaboration of the body of rule fileopen' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 45, column 14. During elaboration of mkTb' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 14, column 16. Warning: "Prelude.bs", line 974, column 9: (G0024) The function unfolding steps interval has been exceeded when unfolding Prelude.BitsPrelude.Bitkk'. The current number of steps is 600000. Next warning at 700000 steps. Elaboration terminates at 1000000 steps. During elaboration of the body of rule fileopen' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 45, column 14. During elaboration of mkTb' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 14, column 16. Warning: "Prelude.bs", line 974, column 9: (G0024) The function unfolding steps interval has been exceeded when unfolding Prelude.Bits~Prelude.Bit~k~k'. The current number of steps is 700000. Next warning at 800000 steps. Elaboration terminates at 1000000 steps. During elaboration of the body of rule fileopen' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 45, column 14. During elaboration of mkTb' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 14, column 16. Warning: "Prelude.bs", line 974, column 9: (G0024) The function unfolding steps interval has been exceeded when unfolding Prelude.BitsPrelude.Bitkk'. The current number of steps is 800000. Next warning at 900000 steps. Elaboration terminates at 1000000 steps. During elaboration of the body of rule fileopen' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 45, column 14. During elaboration of mkTb' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 14, column 16. Warning: "Prelude.bs", line 974, column 9: (G0024) The function unfolding steps interval has been exceeded when unfolding Prelude.Bits~Prelude.Bit~k~k'. The current number of steps is 900000. Next warning at 1000000 steps. Elaboration terminates at 1000000 steps. During elaboration of the body of rule fileopen' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 45, column 14. During elaboration of mkTb' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 14, column 16. Error: "Prelude.bs", line 974, column 9: (G0024) The maximum number of function unfolding steps has been exceeded when unfolding Prelude.BitsPrelude.Bitk~k'. You can use the flags "-steps N", "-steps-warn-interval N", and "-steps-max-intervals N" to set the maximum number of steps. The current maximum is 1000000. During elaboration of the body of rule fileopen' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 45, column 14. During elaboration of mkTb' at "Tb_BOCfloat8_1_4_3_afile.bsv", line 14, column 16.