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Add setexpr command

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Add a simple expr style command that will set an env variable as the result
of the command.  This allows us to do simple math in shell.  The following
operations are supported: &, |, ^, +, -, *, /.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala
2008-02-14 20:44:42 -06:00
committed by Wolfgang Denk
parent 0d48926c87
commit d058698fd2
3 changed files with 72 additions and 0 deletions
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include/config_cmd_all.h
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@@ -70,6 +70,7 @@
#define CONFIG_CMD_SAVES /* save S record dump */
#define CONFIG_CMD_SCSI /* SCSI Support */
#define CONFIG_CMD_SDRAM /* SDRAM DIMM SPD info printout */
#define CONFIG_CMD_SETEXPR /* setexpr support */
#define CONFIG_CMD_SETGETDCR /* DCR support on 4xx */
#define CONFIG_CMD_SNTP /* SNTP support */
#define CONFIG_CMD_SPI /* SPI utility */