106
Rabbit 2000/3000 Microprocessor
Description
•
PUSH IP:
Loads the location in memory whose address is 1 less that the data held in the
Stack Pointer, SP, with the data in the Interrupt Priority Register IP. Then decrements SP.
•
PUSH IX:
Loads the memory location with the address 1 less than the data in the Stack
Pointer, SP, with the high order byte of the data in IX, and loads the memory location with the
address two less than the data in SP with the low order byte of the data in IX. Then SP is decre-
mented twice.
•
PUSH IY:
Loads the memory location with the address 1 less than the data in the Stack
Pointer, SP, with the high order byte of the data in IY, and loads the memory location with the
address two less than the data in SP with the low order byte of the data in IY. Then SP is decre-
mented twice.
PUSH IP
PUSH IX
PUSH IY
Opcode
Instruction
Clocks
Operation
ED 76
PUSH IP
9 (2,2,2,3)
(SP - 1) = IP; SP = SP - 1
DD E5
PUSH IX
12 (2,2,2,3,3)
(SP - 1) = IX
(high)
; (SP - 2) = IX
(low)
;
SP = SP - 2
FD E5
PUSH IY
12 (2,2,2,3,3)
(SP - 1) = IY
(high)
; (SP - 2) = IY
(low)
;
SP = SP - 2
Flags
ALTD
I/O
S
Z
L/V
C
F
R
SP
S
D
-
-
-
-
Summary of Contents for 2000
Page 2: ...ii Rabbit 2000 3000 Microprocessor...
Page 4: ...iv Rabbit 2000 Microprocessor...
Page 16: ...12 Rabbit 2000 3000 Microprocessor...
Page 164: ...160 Instruction Reference Manual...
