參數(shù)資料
型號： NSB8
廠商： Electronic Theatre Controls, Inc.
英文描述： BASIC interpreter for Z80 family
中文描述： Z80的BASIC解釋為家庭
文件頁數(shù)： 126/158頁
文件大?。?/td> 752K
代理商： NSB8
grifo
ITALIAN TECHNOLOGY
Page 114
NSB8 Rel. 5.10
[
]
:
(colon)
;
(semi colon)
becomes
becomes
becomes
becomes
(
)
\
(backslash)
,
(comma)
Thus, the line input as
10 PRINT A$(3,4); : LET A$(3,4)=”HI”
becomes
10 PRINT A$(3,4); \ LET A$(3,4)=”HI”
BCD ARITHMETIC
NSB8
uses the BCD (binary coded decimal) system for implementing floating point arithmetic (as
opposed to binary integer arithmetic in some BASICs, and straight binary floating methods in
others.)
Within the limits of its precision (8 digits in the standard version),
NSB8
’s BCD method is the most
accurate method of arithmetic computation available on microcomputers today. Other floating point
arithmetic methods exhibit binary conversion error which introduces strange and sometimes
frustrating inaccuracies into numeric computations because of an internal conversion of numbers
from decimal (base 10) to binary (base 2).
It is impossible, using straight binary methods, to represent with complete accuracy many common
and precise decimal fractions, such as .1! You might assume that 10*.1 = 1. Using
NSB8
’s accurate
BCD arithmetic, it always does. However, under other methods, 10*.1 frequently does not equal
exactly 1!
IF ... THEN EVALUATION
Other BASICs handle the results of IF ... THEN evaluation differently than
NSB8
when the IF
statement precedes others on a multiple statement program line. In
NSB8
, when the IF condition is
FALSE, the THEN part is skipped and execution continues with the following statement in the
program text. The following statement may come after the IF statement on the same program line,
or, when the IF is at the end of a program line, the first statement on the next line is used as the
following statement. Thus, the program:
10 A=0 \ B=0
20 IF A<>0 THEN A=7 \ B=7
30 PRINT B
will yield 7 as output. In contrast, other BASICs may ignore the rest of line 20 when the IF condition
is found to be FALSE, and will skip ahead to the following program line, bypassing the assignment
to B in line 20 so that the output becomes 0. With these other BASICs, execution always skips to the
following program line when the condition is FALSE. The remainder of the line, if any, is executed
only when the condition evaluates to TRUE.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NSB8AT 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Glass Passivated General Purpose Plastic Rectifier
NSB8AT/31 功能描述:整流器 50 Volt 8.0 Amp 125 Amp IFSM RoHS:否 制造商:Vishay Semiconductors 產(chǎn)品:Standard Recovery Rectifiers 配置: 反向電壓:100 V 正向電壓下降: 恢復(fù)時間:1.2 us 正向連續(xù)電流:2 A 最大浪涌電流:35 A 反向電流 IR:5 uA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-221AC 封裝:Reel
NSB8AT/45 功能描述:整流器 50 Volt 8.0 Amp 125 Amp IFSM RoHS:否 制造商:Vishay Semiconductors 產(chǎn)品:Standard Recovery Rectifiers 配置: 反向電壓:100 V 正向電壓下降: 恢復(fù)時間:1.2 us 正向連續(xù)電流:2 A 最大浪涌電流:35 A 反向電流 IR:5 uA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-221AC 封裝:Reel
NSB8AT/81 功能描述:二極管 - 通用，功率，開關(guān) 50 Volt 8.0 Amp 125 Amp IFSM RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Switching Diodes 峰值反向電壓:600 V 正向連續(xù)電流:200 A 最大浪涌電流:800 A 配置: 恢復(fù)時間:2000 ns 正向電壓下降:1.25 V 最大反向漏泄電流:300 uA 最大功率耗散: 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:ISOTOP 封裝:Tube
NSB8AT-E3/31 功能描述:整流器 50 Volt 8.0 Amp 125 Amp IFSM RoHS:否 制造商:Vishay Semiconductors 產(chǎn)品:Standard Recovery Rectifiers 配置: 反向電壓:100 V 正向電壓下降: 恢復(fù)時間:1.2 us 正向連續(xù)電流:2 A 最大浪涌電流:35 A 反向電流 IR:5 uA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-221AC 封裝:Reel
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