### Mnemonic: SetAMXMD

Hex Code: | 44 | 00 | 00 | 00 | 00 | 0S | 00 | 00 | unconditional, indirect
44 | M0 | 00 | 00 | 00 | 0S | XX | YY | M=1-7, Compare register XX to register YY, indirect
44 | 0K | 00 | 00 | 00 | 0S | HH | LL | unconditional, indirect, K=1,4-7 Set then Link
54 | 00 | 00 | 00 | SS | SS | 00 | 00 | unconditional, direct
54 | M0 | 00 | 00 | SS | SS | XX | YY | M=1-7, Compare register XX to register YY, direct
54 | 0K | 00 | 00 | SS | SS | HH | LL | unconditional, direct, K=1,4-7 Set then Link

Action: | The SetAMXMD command sets the Karaoke audio mixing mode (SPRM 11). The indirect form sets SPRM 11 to the value in the GPRM register indicated by "S" (lower nibble of byte 5). The direct form sets SPRM 11 to "SSSS" (bytes 4&5). If "K" is 1, 4, 5, 6, or 7 the Set is followed by a link command.
Order: | If a compare is specified, it is performed first. If the condition is met the SetAMXMD is executed.
Comments: | The command can be conditional or be combined with a link command, but not both. See also SPRMs for information on SPRM 11 values.

Optional Link Command details
K | LL | Link Command | Comment
--- | --- | --- | ---
1 | 00 | LinkNoLink | use byte 6 as "HH" in these detailed pages, ignore all other values.
1 | 01 | LinkTopCell
1 | 02 | LinkNextCell
1 | 03 | LinkPrevCell
1 | 05 | LinkTopPG
1 | 06 | LinkNextPG
1 | 07 | LinkPrevPG
1 | 09 | LinkTopPGC
1 | 0A | LinkNextPGC
1 | 0B | LinkPrevPGC
1 | 0C | LinkGoUpPGC
1 | 0D | LinkTailPGC
1 | 10 | RSM
4 | -- | LinkPGCN | use bytes 6 and 7 as "NNNN" in this detailed page, ignore all other values.
5 | -- | LinkPTTN | use bytes 6 and 7 as "HTTT" in this detailed page, ignore all other values.
6 | -- | LinkPGN | use bytes 6 and 7 as "HHPP" in this detailed page, ignore all other values.
7 | -- | LinkCN | use bytes 6 and 7 as "HHNN" in this detailed page, ignore all other values.

Compare operation codes
register to register | Alternate mnemonic | Comments
--- | --- | ---
M | operation
1 | RegX & RegY | BC | Bitwise compare, the two operands are anded, if the result is non-zero the condition is true
2 | RegX == RegY | EQ | If the two operands are equal the condition is true
3 | RegX != RegY | NE | If the two operands are not equal the condition is true
4 | RegX >= RegY | GE | If RegX is greater than or equal to the right operand the condition is true
5 | RegX > RegY | GT | If RegX is greater than the right operand the condition is true
6 | RegX <= RegY | LE | If RegX is less than or equal to the right operand the condition is true
7 | RegX < RegY | LT | If RegX is less than the right operand the condition is true

Register Codes
0x00 through 0x0F | General Purpose registers 0 to 15 (GPRM)
0x80 through 0x97 | System Parameter registers 0 to 23 (SPRM)
all others | do not use

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