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[/] [openmsp430/] [trunk/] [core/] [rtl/] [verilog/] - Rev 102

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102 Fixed bug reported by Mihai ( http://opencores.org/bug,view,1955 ).
The following PUSH instructions are now working as expected:

- indexed mode: PUSH x(R1)
- indirect register mode: PUSH @R1
- indirect autoincrement: PUSH @R1+
olivier.girard 4993d 01h /openmsp430/trunk/core/rtl/verilog/
101 Cosmetic change in order to prevent an X propagation whenever executing a byte instruction with an uninitialized memory location as source. olivier.girard 4993d 03h /openmsp430/trunk/core/rtl/verilog/
91 Fixed bug when an IRQ arrives while CPU is halted through the serial debug interface.
This bug is CRITICAL for people using working with interrupts and the Serial Debug Interface.
olivier.girard 5005d 04h /openmsp430/trunk/core/rtl/verilog/
86 Update serial debug interface test patterns to make them work with all program memory configurations. olivier.girard 5028d 00h /openmsp430/trunk/core/rtl/verilog/
85 Diverse RTL cosmetic updates. olivier.girard 5028d 02h /openmsp430/trunk/core/rtl/verilog/
84 Update SRAM model in the core testbench to prevent the IEEE warning when running simulations.
Update watchdog to fix NMI synchronisation problem.
Add synchronizers for the PUC signal in the debug interface.
olivier.girard 5033d 03h /openmsp430/trunk/core/rtl/verilog/
79 Update the GPIO peripheral to fix a potential synchronization issue. olivier.girard 5094d 04h /openmsp430/trunk/core/rtl/verilog/
74 Update serial debug interface to support memories with a size which is not a power of 2.
Update the software tools accordingly.
olivier.girard 5181d 03h /openmsp430/trunk/core/rtl/verilog/
72 Expand configurability options of the program and data memory sizes. olivier.girard 5208d 04h /openmsp430/trunk/core/rtl/verilog/
67 Added 16x16 Hardware Multiplier. olivier.girard 5355d 11h /openmsp430/trunk/core/rtl/verilog/
66 The peripheral templates are now under BSD license.
Developers of new peripherals based on these templates won't have to disclose their code.
olivier.girard 5355d 15h /openmsp430/trunk/core/rtl/verilog/
60 Cleanup of the PC (R0) generation logic.
Formal equivalence was shown between the new and old code with Synopsys' Formality (to make sure that nothing has been broken :-P ).
olivier.girard 5387d 02h /openmsp430/trunk/core/rtl/verilog/
57 Update design to exclude the range mode from the debug hardware breakpoint units. As this feature is not used by GDB, it has been disabled in order to improve the timings and save a bit of area/utilisation.
Note that if required, this feature can be re-enabled through the `HWBRK_RANGE define located in the "openMSP430_defines.v" file.
olivier.girard 5389d 00h /openmsp430/trunk/core/rtl/verilog/
53 Fixed the following combinatorial timing loop:
1- irq_detect (omsp_frontend)
2- decode (omsp_frontend)
3- dbg_swbrk (omsp_dbg)
4- halt_flag_set (omsp_dbg)
6- dbg_halt_cmd (omsp_dbg)
7- irq_detect (omsp_frontend)

Without this fix, problem could occur whenever an IRQ request arrives during a software breakpoint instruction fetch.
olivier.girard 5394d 05h /openmsp430/trunk/core/rtl/verilog/
34 To avoid potential conflicts with other Verilog modules in bigger projects, the openMSP430 sub-modules have all been renamed with the "omsp_" prefix. olivier.girard 5423d 04h /openmsp430/trunk/core/rtl/verilog/
33 In order to avoid confusion, the following changes have been implemented to the Verilog code:
- renamed the "rom_*" ports and defines to "pmem_*" (program memory).
- renamed the "ram_*" ports and defines to "dmem_*" (data memory).

In addition, in order to prevent potential conflicts with the Verilog defines of other IPs, a Verilog undefine file has been created.
olivier.girard 5423d 05h /openmsp430/trunk/core/rtl/verilog/
23 Renamed the "openMSP430.inc" file to "openMSP430_defines.v" & added the "timescale.v" file.
In order to follow the same structure as other OpenCores projects, the timescale and the defines are now included from within the Verilog files (using the `include construct).
olivier.girard 5544d 07h /openmsp430/trunk/core/rtl/verilog/
17 Updated header with SVN info olivier.girard 5570d 02h /openmsp430/trunk/core/rtl/verilog/
2 Upload complete openMSP430 project to the SVN repository olivier.girard 5605d 02h /openmsp430/trunk/core/rtl/verilog/

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