Texas Instruments TMS320C28x Reference Manual page 451

PUSH ST0
PUSH ST0
SYNTAX OPTIONS
PUSH ST0
Operands ST0
Description
Flags and
Modes
Repeat
6-294
0111 0110 0001 1000
Status register 0
Push the 16-bit contents of ST0 onto the stack pointed to by SP.
Post-increment SP by 1:
[SP] = ST0;
SP += 1;
None
This instruction is not repeatable. If this instruction follows the RPT
instruction, it resets the repeat counter (RPTC) and executes only once.
OPCODE OBJMODE
Push ST0 Onto Stack
RPT CYC
X − 1