Sharp PC-1500 - Page 41

36
All and more about Sharp PC-1500 at http:/lwww.PC-1500.info
® SIN (Store and IN crement)
The contents of the accumulator arc transferred to the external memory (Rreg). then
"I" is increment ed 10 R rcg.
No change tak es place in Oags.
•F ormat
SIN Rreg
(EX) SIN Yreg
A- r;) 0 1
Yreg 4700H
@ STX (S T ore Xr eg)
•O peration
A - (Rrcg)
Rreg + I - Rn:g
1
1 Co nl en ls _
0 0
1
Execute of 470011 - ----
Yreg = 4701 H
T he contents of Xreg arc transferred to the R register. s ta ck poi nt er. or pr og ram
counter.
No chan ge 1; 1k es place in Oag s.
•F ormat
STX Rrcg
STX S
ST X P
@ PSH (P uSH )
•Op eration
Xr cg - [ op erand i
The
co111cn1s of th e accumulator or R register arc stack ed in the mcrnor) specified by
the stack pointer.
In th e case of 1 he accum ul awr. t he stack point er is d ccre m cn t~cl hy one. I 11 thc ca se of
the
R register. t he stack pointer is decreme nt ed by tw o.
•F ormat
(j) PSH A
(!) PSH Rreg
•Op eration
!\ - (S)
S - 1 -S
RI. - (S)
S - I - S
RH - (S)
S - I - S
Do not sell this PDF !!!