URL https://opencores.org/ocsvn/ion/ion/trunk

Subversion Repositories ion

[/] [ion/] [trunk/] [src/] [opcodes/] [readme.txt] - Diff between revs 66 and 197

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`This is a basic opcode test bench which tries all supported opcodes. See the`	`This is a basic opcode test bench which tries all supported opcodes. See the`
`source comments. This code has been lifted whole from the Plasma project.`	`source comments. This code has been lifted whole from the Plasma project and`
	`then gradually modified to its present state.`

`Build the program with:`	`This program can be simulated (both Modelsim and SW simulator) but it can't be`
	`synthesized to a hardware demo (see makefiles). Only a 'sim' target is provided`
`make opcodes`	`in the makefile.`
`or`
`make opcodes_sim`

`Read ../readme.txt for some warnings on the makefile configuration.`


`It will build a vhdl test bench at /vhdl/tb/mips_tb2.vhdl (overwriting) that you`
`can try on your VHDL simulator with script sim_tb2.do. The provided script and`
`the VHDL code have some dependence on Modelsim, see project readme file.`


`The makefile will too bouild some bionaries that you can run in the software`
`simulator:`

`slite --bram=opcodes.bin --xram=opcodes.data`


`This code can't be used on real hardware (i/o is far too simple).`

`WARNING: the gnu assembler expands DIV* instructions, inserting code that`	`WARNING: the gnu assembler expands DIV* instructions, inserting code that`
`handles division by zero. Bear that in mind when reading the listing file.`	`handles division by zero. Bear that in mind when reading the listing file.`