5: BASIC Stamp Command Reference - BRANCH
BASIC Stamp Programming Manual 2.0c
•
www.parallaxinc.com
•
Page 83
BRANCH
BS1 BS2 BS2e BS2sx BS2p
BRANCH
Offset, ( Address0, Address1, ...AddressN )
BRANCH
Offset, [ Address0, Address1, ...AddressN ]
Function
Go to the address specified by offset (if in range).
•
Offset
is a variable/constant/expression (0 – 255) that specifies the
index of the address, in the list, to branch to (0 – N).
•
Addresses
are labels that specify where to go. BRANCH will ignore
any list entries beyond offset 255.
Quick Facts
BS1
BS2, BS2e, BS2sx and BS2p
Limit of
Address
entries
Limited only by memory
256
Explanation
The BRANCH instruction is useful when you want to write something like
this:
IF value = 0 THEN case_0 ' value =0: go to label "case_0"
IF value = 1 THEN case_1 ' value =1: go to label "case_1"
IF value = 2 THEN case_2 ' value =2: go to label "case_2"
You can use BRANCH to organize this into a single statement:
BRANCH value, [case_0, case_1, case_2]
This works exactly the same as the previous IF...THEN example. If the
value isn’t in range (in this case if value is greater than 2), BRANCH does
nothing and the program continues with the next instruction after
BRANCH.
BRANCH can be teamed with the LOOKDOWN instruction to create a
simplified SELECT CASE statement. See LOOKDOWN for an example.
BS1 syntax not shown here.
1
2
e
2
sx
2
p
2
1
1
NOTE: Expressions are not
allowed as arguments on the BS1.
Table 5.2: BRANCH Quick Facts.
Содержание BASIC Stamp 2e
Страница 1: ...BASIC Stamp Programming Manual Version 2 0c...
Страница 30: ...Introduction to the BASIC Stamps Page 28 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 34: ...Quick Start Guide Page 32 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 90: ...BUTTON BASIC Stamp Command Reference Page 88 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 118: ...END BASIC Stamp Command Reference Page 116 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 128: ...FREQOUT BASIC Stamp Command Reference Page 126 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 196: ...NAP BASIC Stamp Command Reference Page 194 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 206: ...OWIN BASIC Stamp Command Reference Page 204 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 214: ...OWOUT BASIC Stamp Command Reference Page 212 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 216: ...PAUSE BASIC Stamp Command Reference Page 214 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 226: ...POLLMODE BASIC Stamp Command Reference Page 224 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 232: ...POLLOUT BASIC Stamp Command Reference Page 230 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 236: ...POLLRUN BASIC Stamp Command Reference Page 234 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 240: ...POLLWAIT BASIC Stamp Command Reference Page 238 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 262: ...RCTIME BASIC Stamp Command Reference Page 260 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 274: ...RUN BASIC Stamp Command Reference Page 272 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 310: ...SEROUT BASIC Stamp Command Reference Page 308 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 324: ...STOP BASIC Stamp Command Reference Page 322 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 340: ...ASCII Chart Page 338 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 342: ...Reserved Words Page 340 BASIC Stamp Programming Manual 2 0b www parallaxinc com...
Страница 346: ...Conversion Formatters Page 344 BASIC Stamp Programming Manual 2 0b www parallaxinc com...