Datasheet

Instruction Set Description www.ti.com
4.6.2.35 PUSH
PUSH[.W] Save a word on the stack
PUSH.B Save a byte on the stack
Syntax
PUSH dst or PUSH.W dst
PUSH.B dst
Operation SP – 2 → SP
dst → @SP
Description The 20-bit SP SP is decremented by two. The operand is then copied to the RAM word
addressed by the SP. A pushed byte is stored in the low byte; the high byte is not
affected.
Status Bits Status bits are not affected.
Mode Bits OSCOFF, CPUOFF, and GIE are not affected.
Example Save the two 16-bit registers R9 and R10 on the stack
PUSH R9 ; Save R9 and R10 XXXXh
PUSH R10 ; YYYYh
Example Save the two bytes EDE and TONI on the stack. The addresses EDE and TONI are
within PC ± 32 K.
PUSH.B EDE ; Save EDE xxXXh
PUSH.B TONI ; Save TONI xxYYh
198
CPUX SLAU144J–December 2004–Revised July 2013
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