Myst scripts

This page contains, or will contain, a list of all known commands in Myst, as used in record types 5, 6, 7, 8, 10, 11, and 12. Specifics on the format itself can be found at Myst RLST resources. The way scripts are stored, they each contain a command number, a variable number, and any number of arguments. When a variable number is not given, a "0" is used. So when the key below says that the variable is "optional", that means that it has been found both with and without a variable being passed in. In some cases, the syntax of the arguments depends on whether a variable was passed in. In this case, the variable/arguments header is repeated for each form of the command.

Command 0

• Variable: Optional
• Arguments: None

Command 1

• Variable: Optional
• Arguments: u0

• u0 takes on any number between 0 and 7 (maybe a bit field?)

Command 2: alternative destination

• Variable: Yes
• Arguments: dest

This command goes to dest instead of the regular destination if var is a certain (unknown) value. (Only used for SELEN 1240 and CHANNEL 3359)

Command 3

• Variable: Yes
• Arguments: u0

• u0 is always 800, 801, or 802. (Only 5 different cases)

Command 4

• Variable: Optional
• Arguments: None

Command 6

• Variable: Optional
• Arguments: None

Command 7

• Variable: Optional
• Arguments: None

Command 8

• Variable: Optional
• Arguments: None

Command 9

• Variable: No
• Arguments: [u0]

• u0 is always either FFFF or omitted.

Command 12

• Variable: Optional
• Arguments: u0

Related to command 13.

• u0 appears to be a nearby node.

This may have similar function to command 2.

Command 13

• Variable: Optional
• Arguments: u0

Related to command 12.

• u0 appears to be a nearby node.

This may have similar function to command 2.

Command 14

• Variable: Optional
• Arguments: u0

• u0 is always 0, 1, or 2.

Command 15

• Variable: Yes
• Arguments: [u0]

• u0 is always 0 or omitted.

Command 16

• Variable: No
• Arguments: u0 u1

• u0 appears to be a nearby node.
• u1 is always 0.

Command 17

• Variable: No
• Arguments: u0 u1

• u0 appears to be a nearby node.
• u1 is always 4, 5, or 6.

Command 18

• Variable: No
• Arguments: u0

• u0 is always 4, 5, or 6.

Command 19

• Variable: No
• Arguments: count u0[count]

• All of the u0 numbers are small (0-13, 21).

Command 20

• Variable: No
• Arguments: count u0[count]

• All of the u0 numbers are small (0-13, 21). These, unlike command 19, can also be FFFF.

Command 21

• Variable: No
• Arguments: u0 u1 u2 u3 u4 u5

There are this command is used 6 times.

• u0 is always 0, 74, 76, 117, or 198.
• u1 is always 0, 48, 213, or 226.
• u2 is always 327, 406, 429, 459, or 544.
• u3 is always 257, 332, or 333.
• u4 is always 0, 1, 5, 6, or 11.
• u5 is always 5 or 25.

Command 22

• Variable: No
• Arguments: None

Command 23

• Variable: No
• Arguments: count u0[count]

• The u0 numbers are all 0, 4, or 5.

Command 24

• Variable: No
• Arguments: u0

• u0 appears to be a node number, but it sometimes has a different 1000's place digit (like the numbers in the VIEW resources).

Command 26

• Variable: No
• Arguments: None

Command 27

• Variable: No
• Arguments: u0

• u0 appears to be a node number, but it sometimes has a different 1000's place digit (like the numbers in the VIEW resources).

Command 28

• Variable: No
• Arguments: (<l t r b>|FFFF)

• <l t r b> often corresponds with the intended location of one of the sub-images in the VIEW resources.

Command 29

• Variable: No
• Arguments: node <l t r b> u0 u1

• node appears to be a node number.
• <l t r b> often corresponds with the intended location of one of the sub-images in the VIEW resources.
• u0 appears to be a variable number (it is sometimes 0).
• u1 may also be a variable number (it is sometimes 0, 1, or FFFF).

Command 30

• Variable: No
• Arguments: node flags

• node looks like a node number.
• flags looks like a bit field.

Command 31

• Variable: Yes (only ever 30)
• Arguments: u0 u1

• u0 is always 0.
• u1 looks like a node number.

Command 32

• Variable: No
• Arguments: None

Command 33

• Variable: No
• Arguments: node <l t r b> u0 u1

• node appears to be a node number.
• <l t r b> often corresponds with the intended location of one of the sub-images in the VIEW resources.
• u0 appears to be a variable number (it is sometimes 0).
• u1 may also be a variable number (it is sometimes 0).

Command 34

• Variable: No
• Arguments: u0 u1

• u0 looks like a node number.
• u1 is always 0, 1, 4, 5, 6, 9, 10, or 11.

Command 35

• Variable: No
• Arguments: u0 u1 u2

• u0 looks like a node number.
• u1 looks like a node number.
• u2 is always 0, 6, or 10.

Command 36

• Variable: No
• Arguments: u0

This command is only used twice.

• u0 is 900 or 903.

Command 37

• Variable: No
• Arguments: None

Command 38

• Variable: No
• Arguments: None

Command 39

• Variable: No
• Arguments: u0

• u0 is 100, 200, 400, 500, 1000, or 1100.

Command 40

• Variable: No
• Arguments: u0 u1 u2

• u0 is always 0, 1, 2, 3, 4, or 6.
• u1 looks like a node number.
• u2 looks like a node number.

Command 41

• Variable: No
• Arguments: u0 u1 u2 count u3[count]

• u0 looks like a node number.
• u1 looks like a node number.
• u2 is always 5 or 10.
• count is only ever 6 or 12.
• u3 may be divided into groups of sixes.

Command 42

• Variable: No
• Arguments: u0 u1 count u2[count]

• u0 looks like a node number.
• u1 is always 5, 10, 15, or 20.
• count is only ever 6 or 12.
• u3 may be divided into groups of sixes.

Command 43

• Variable: No
• Arguments: None

Command 44

• Variable: No
• Arguments: None

Command 46

• Variable: No
• Arguments: None

Command 100

• Variable: Optional
• Arguments: [u0]

• u0 is always 4, 6, or omitted.

Command 101

• Variable: No
• Arguments: [u0|u1[6]]

• u0 is always 4225 or omitted.
• u1 is a series of 6 positive numbers.

Command 102

• Variable: No
• Arguments: [u0 u1 [u2]]

• u0 looks like a node number (or 0).
• u1 looks like a node number.
• u2 looks like an (optional) bit field. (only 0x64 or 0)

Command 103

• Variable: Yes
• Arguments: bit

This form of the command most likely negates bit bit of var.

• bit is a power of 2 (bit mask).

• Variable: No
• Arguments: u0 [u1]

This form of the command is unknown.

• u0 is a number between 13 and 18.
• u1 is either 1 or omitted.

Command 104

• Variable: No
• Arguments: [u0]

• u0 can be 0, 1, omitted, or 13 to 20.

Command 105

• Variable: Optional (set to 9 at one point, but usually not)
• Arguments: [u0]

• u0 looks like a node number.

Command 106

• Variable: 10
• Arguments: 2287

This command is only used once.

Command 107

• Variable: 11
• Arguments: 2287

This command is only used once.

Command 108

• Variable: 12
• Arguments: 2287

This command is only used once.

Command 109

• Variable: Optional
• Arguments: [u0]

• u0 is FFFF, 1, omitted, or 2287.

Command 110

• Variable: No
• Arguments: 1180 1179 12 203 78 345 167 6 10 203 166 345 306 5 10

This command is only used once.

Command 111

• Variable: No
• Arguments: [u0]

• u0 is 14 to 20 or omitted.

Command 112

• Variable: 29
• Arguments: u0 u1 u2

This command is only used twice.

• u0 is 0 or 1800.
• u1 is 400 or 2000.
• u2 is 1.

Command 113

• Variable: No
• Arguments: 5143 10 6 339 237 423 333 0 10

This command is only used once.

Command 114

• Variable: No
• Arguments: 5143 10 6 339 237 423 333 1 10

This command is only used once.

Command 115

• Variable: Yes
• Arguments: u0[3]

• The u0 look like node numbers.

• Variable: No
• Arguments: 1139 1140 1140 10 6 204 64 343 279 6 50

This form of the command is only used once.

Command 116

• Variable: No
• Arguments: u0

• u0 is 0, 1, or 6006.

Command 117

• Variable: No
• Arguments: [u0|u1 u2]

• u0 is 0, 1, 2, 3, or omitted.
• u1 and u2 are 5698 and 6698 (only used once).

Command 118

• Variable: No
• Arguments: [4707 5707 6707 7707 4705]

This command is only used twice (once with values and once omitted).

Command 119

• Variable: No
• Arguments: [u0]

• u0 is 0, 1, or omitted.

Command 120

• Variable: No
• Arguments: [u0]

• u0 is 0, 1, 2, 3, or omitted.

Command 121

• Variable: Yes
• Arguments: None

• Variable: No
• Arguments: u0 u1

• u0 is 0 or a node number.
• u1 is a node number.

Command 122

• Variable: No
• Arguments: None

Command 123

• Variable: No
• Arguments: u0 [u1]

• u0 is 0, 1, or 960.
• u1 is 960, 1920, or omitted.

Command 124

• Variable: No
• Arguments: None

Command 125

• Variable: No
• Arguments: None

• Variable: 21
• Arguments: u0

• u0 is 13 or 14.

Command 126

• Variable: No
• Arguments: None

Command 127

• Variable: no
• Arguments: u0 u1

• u0 is 1, 2, or 3.
• u1 is 0 or 1.

Command 129

• Variable: No
• Arguments: u0

• u0 looks like a node number.

Command 133

• Variable: No
• Arguments: 6500

This command is only used once.

Command 164

• Variable: No
• Arguments: None

Command 169

• Variable: No
• Arguments: None

Command 198

• Variable: No
• Arguments: 5143 10 6 339 237 423 333 1 10

This command is only used once.

Command 199

• Variable: No
• Arguments: None