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lm32: fix watchpoints 

The wp_match_n vector is off by one. Which results in undefined states, at
least in simulation.

Signed-off-by: Michael Walle <michael@walle.cc>
This commit is contained in:
Michael Walle 2012-11-30 00:19:44 +01:00 committed by Sebastien Bourdeauducq
parent 293a62dabe
commit 7a1e4cb66b
1 changed files with 1 additions and 1 deletions
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verilog/lm32/lm32_debug.v
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@ -167,7 +167,7 @@ wire [0:breakpoints-1]bp_match_n; // Indicates if a h/w instructio
reg [`LM32_WPC_C_RNG] wpc_c[0:watchpoints-1]; // Watchpoint enable reg [`LM32_WPC_C_RNG] wpc_c[0:watchpoints-1]; // Watchpoint enable
reg [`LM32_WORD_RNG] wp[0:watchpoints-1]; // Watchpoint address reg [`LM32_WORD_RNG] wp[0:watchpoints-1]; // Watchpoint address
wire [0:watchpoints]wp_match_n; // Indicates if a h/w data watchpoint matched wire [0:watchpoints-1]wp_match_n; // Indicates if a h/w data watchpoint matched
wire debug_csr_write_enable; // Debug CSR write enable (from either a wcsr instruction of external debugger) wire debug_csr_write_enable; // Debug CSR write enable (from either a wcsr instruction of external debugger)
wire [`LM32_WORD_RNG] debug_csr_write_data; // Data to write to debug CSR wire [`LM32_WORD_RNG] debug_csr_write_data; // Data to write to debug CSR