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TMS320F Datasheet(PDF) 240 Page - Texas Instruments |
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TMS320F Datasheet(HTML) 240 Page - Texas Instruments |
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240 / 389 page  PUSH Push Low Accumulator Onto Stack 7-140 Syntax PUSH Operands None Opcode 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 0 1 1 1 1 0 0 0 1 1 1 1 1 0 1 Execution Increment PC, then... Push all stack locations down one level ACC(15:0) → TOS Status Bits None Description The stack values move down one level. Then, the content of the lower half of the accumulator is copied onto the top of the hardware stack. The hardware stack operates as a last-in, first-out stack with eight locations. If more than eight pushes (due to a CALA, CALL, CC, PSHD, PUSH, TRAP, INTR, or NMI instruction) occur before a pop, the first data values written are lost with each succeeding push. Words 1 Cycles for a Single PUSH Instruction ROM DARAM SARAM External 1 1 1 1+p Cycles for a Repeat (RPT) Execution of a PUSH Instruction ROM DARAM SARAM External n n n n+p Example PUSH Before Instruction After Instruction ACC X 7h ACC X 7h CC Stack 2h Stack 7h 5h 2h 3h 5h 0h 3h 12h 0h 86h 12h 54h 86h 3Fh 54h Cycles |
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