mfill

mfill
	225.2. Common Commands

Name

mfill — Fill RAM with a specified pattern

Synopsis

mfill {-b location} {-l length} {-p value} {-a mask} [[-1] | [-2] | [-4]]

Arguments

Name	Type	Description	Default
-b `location`	Memory address	Location in memory for start of data.	none
-l `length`	Number	Length of data	none
-p `pattern`	Number	Data value to fill with	0
-a `mask`	Number	Use location address ANDed with mask as pattern, overrides -p	0
-1		Access one byte (8 bits) at a time. Only the least significant 8 bits of the pattern will be used.	-4
-2		Access two bytes (16 bits) at a time. Only the least significant 16 bits of the pattern will be used.	-4
-4		Access one word (32 bits) at a time.	-4

Description

Fills a range of memory with the given pattern.

Examples

Fill a buffer with zeros.

RedBoot> x -b 0x100000 -l 0x20
00100000: 00 3E 00 06 00 06 00 06  00 00 00 00 00 00 00 00  |.>..............|
00100010: 00 00 00 78 00 70 00 60  00 60 00 60 00 60 00 60  |...x.p.`.`.`.`.`|
RedBoot> mfill -b 0x100000 -l 0x20
RedBoot> x -b 0x100000 -l 0x20
00100000: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00100010: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|

Fill a buffer with a pattern.

RedBoot> mfill -b 0x100000 -l 0x20 -p 0xDEADFACE
RedBoot> x -b 0x100000 -l 0x20
00100000: CE FA AD DE CE FA AD DE  CE FA AD DE CE FA AD DE  |................|
00100010: CE FA AD DE CE FA AD DE  CE FA AD DE CE FA AD DE  |................|

Fill a buffer with masked address.

RedBoot> mfill -b 0x01000000 -l 0x20 -a 0x0FFF -2
RedBoot> x -b 0x01000000 -l 0x20 -2
01000000: 0000 0002 0004 0006  0008 000A 000C 000E
01000010: 0010 0012 0014 0016  0018 001A 001C 001E


mcopy		ping

2024-03-18

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