- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄363665 > NSB8 (Electronic Theatre Controls, Inc.) BASIC interpreter for Z80 family PDF資料下載
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)： | 134/158頁 |
| 文件大?。?/td> | 752K |
| 代理商： | NSB8 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁當(dāng)前第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁
grifo
ITALIAN TECHNOLOGY
Page 122
NSB8 Rel. 5.10
NON STANDARD VERSIONS OF BASIC
This discussion assumes some sophistication on the part of the reader, particularly an understanding
of the term precision and how it relates to numbers and arithmetic in BASIC. A knowledge of
computer memory addressing and the hexadecimal numbering system is also helpful. Readers
unfamiliar with these topics should study other sections in this manual, namely USING NUMBERS,
SPECIAL ENTRY POINTS and PERSONALIZING BASIC.
ABOUT NON STANDARD VERSIONS OF BASIC
The standard version of BASIC begins at address 3584 (0E00H) in memory, provides 8 digits of
arithmetic precision in its representation of numbers, and does arithmetic with the help of special
software routines written directly into the BASIC interpreter itself. BASIC is available, however,
beginning at other addresses in memory (from now going on, the starting address of your copy of
BASIC, whatever it is, will be called its ORG, for origin). Moreover, BASIC is available with 6, 10,
12, and 14 digits of numeric precision, as well as the standard 8 digits.
Any combination of these three options (different origin and different precision) may be ordered in
a special, non standard version of BASIC for a nominal fee. This section discusses the explicit details
and the ramifications of the differences between these special BASICs and the standard BASIC.
DIFFERENT ORIGIN
BASIC may be relocated to begin at any of the sixty four 1024 byte address boundaries in memory. It
is, of course, advisable to avoid certain areas of memory, most notably those which contain the
GDOS 80
or reserved memory areas. If you have any other system software (such as special I/O
routines in PROM, etc.) which must exist in a certain region of memory, you should also avoid
relocating BASIC into these areas.
DIFFERENT PRECISIONS
Within RAM and in diskette data files, numeric elements of differing precision will take different
amounts of storage space. Standard 8 digit numbers require 5 bytes, for example, while 14 digit
numbers require 8 bytes.
Because of this size difference between numbers of different precisions, it is not possible for a BASIC
program which is operating under a BASIC of precision X to read numeric elements from data files
created under a BASIC of precision Y using the READ# statement in normal fashion. That is,
READ #1,A
under 8 digit BASIC will not return a correct value if used to retrieve a numeric element created under
14 digit BASIC. It is possible to read foreign files such as these by accepting data byte by byte and
reconstructing appropriate values, making allowances for difference in precisions.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NSB9435T1 | High Current Bias Resistor Transistors(高強(qiáng)度電流偏置電阻晶體管) |
| NSBA114EDXV6T1 | Dual Bias Resistor Transistors(雙偏置電阻晶體管) |
| NSBA114YDXV6T1 | Dual Bias Resistor Transistors(雙偏置電阻晶體管) |
| NSBC143TPDXV6T1 | Dual Bias Resistor Transistors(雙偏置電阻晶體管) |
| NSBC144EPDXV6T1 | Dual Bias Resistor Transistors(雙偏置電阻晶體管) |
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(shí)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(shí)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(shí)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(shí)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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。