SAM47 INSTRUCTION SET
KS57C2308/P2308/C2316/P2316
5-40
BTST
— Bit Test and Skip on True
BTST
(Continued)
Examples:
2. You can use BTST in the same way to test a port pin address bit:
BTST
P2.0
; If P2.0 = "1", then skip
RET
; If P2.0 = "0", then return
JP
LABEL3
3. P2.2, P2.3 and P3.0–P3.3 are tested:
LD
L,#0AH
BP2
BTST
P1.@L
; First, P1.@0AH = P2.2
; (111100B) + 10B.10B = 0F2H.2
RET
INCS
L
JR
BP2
4. Bank 0, location 0A0H.0, is tested and (regardless of the current EMB value) BTST has the
following effect:
FLAG
EQU
0A0H.0
•
•
•
BITR
EMB
•
•
•
LD
H,#0AH
BTST
@H+FLAG
; If bank 0 (AH + 0H).0 = 0A0H.0 =
"1", then skip
RET
•
•
•
Summary of Contents for C2316
Page 30: ...ADDRESS SPACES KS57C2308 P2308 C2316 P2316 2 22 NOTES ...
Page 168: ...SAM47 INSTRUCTION SET KS57C2308 P2308 C2316 P2316 5 94 NOTES ...
Page 170: ......
Page 206: ...POWER DOWN KS57C2308 P2308 C2316 P2316 8 8 NOTES ...
Page 210: ...RESET KS57C2308 P2308 C2316 P2316 9 4 NOTES ...
Page 222: ...I O PORTS KS57C2308 P2308 C2316 P2316 10 12 NOTES ...
Page 272: ...LCD CONTROLLER DRIVER KS57C2308 P2308 C2316 P2316 12 24 NOTES ...
Page 280: ...SERIAL I O INTERFACE KS57C2308 P2308 C2316 P2316 13 8 NOTES ...
Page 294: ...MECHANICAL DATA KS57C2308 P2308 C2316 P2316 15 2 NOTES ...
Page 310: ...KS57P2308 P2316 OTP KS57C2308 P2308 C2316 P2316 16 16 NOTES ...
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