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    • 1. 发明授权
    • Graphic display scrolling apparatus
    • 图形显示滚动装置
    • US5754161A
    • 1998-05-19
    • US502728
    • 1995-07-14
    • Tadayuki NoguchiAkihiko IshimotoKoji Hirano
    • Tadayuki NoguchiAkihiko IshimotoKoji Hirano
    • G06F3/153G06F3/048G09G5/34G09G5/36G09G5/39
    • G09G5/346
    • A graphic scrolling apparatus comprising a unit for storing image data; an image display device having a screen for displaying a first predetermined-sized area of the image data stored in the image data storing unit; a buffer memory for temporarily storing a second predetermined-sized area of the image data stored in the image data storing means, the second predetermined-sized area being larger than the first predetermined-sized area; a first depicting unit for retrieving, from the image storing means, at least image data corresponding to a third area of the first predetermined-sized area, which protrudes from the second predetermined-sized area and for depicting the at least image data corresponding to the third area on a fourth area of the second predetermined sized area, which is in the outside of the first predetermined-sized area as the first predetermined-sized area scrolls on the second predetermined-sized area; and an image display controlling unit for controlling the apparatus such that an image is displayed on the screen of the image display device by changing a reading address for the buffer memory to an address of the fourth area and by reading out data of the first predetermined-sized area based on the changed address at the boundary of the first predetermined-sized area when the first predetermined-sized area protrudes from the second predetermined-sized area as the first predetermined-sized area scrolls on the second predetermined-sized area.
    • 一种图形滚动装置,包括用于存储图像数据的单元; 图像显示装置,具有用于显示存储在图像数据存储单元中的图像数据的第一预定尺寸区域的屏幕; 缓冲存储器,用于临时存储存储在图像数据存储装置中的图像数据的第二预定大小区域,第二预定大小区域大于第一预定大小区域; 第一描绘单元,用于从图像存储装置检索与第二预定大小区域相对应的至少第一预定大小区域的第三区域的图像数据,并且描绘至少与图像数据对应的图像数据 第二预定大小区域的第四区域上的第三区域,当第一预定大小区域在第二预定大小区域上滚动时,位于第一预定大小区域的外侧; 以及图像显示控制单元,用于控制所述设备,使得通过将所述缓冲存储器的读取地址改变为所述第四区域的地址,并且通过读出所述第一预定位置的数据来在所述图像显示设备的屏幕上显示图像, 当所述第一预定大小区域在所述第二预定大小区域上滚动时,所述第一预定大小区域从所述第二预定大小区域突出时,基于所述第一预定大小区域边界处改变的地址。
    • 5. 发明授权
    • Microprocessor for debugging programs
    • 用于调试程序的微处理器
    • US5379301A
    • 1995-01-03
    • US151246
    • 1993-11-12
    • Koichi SatoKoji HiranoKazunori Saitoh
    • Koichi SatoKoji HiranoKazunori Saitoh
    • G06F11/28G06F11/36G06F15/78G06F11/00
    • G06F11/3648
    • A microprocessor, comprising a register 18 for setting either a first mode in which a trap instruction is not executed, or a second mode in which the trap instruction can be executed is set, wherein an instruction decoding circuit 23, in case of operating in the first mode, outputs an internal signal SG1 directing execution of a subroutine call, when decoding a subroutine call instruction, to an instruction executing unit 14, and in case of operating in the second mode, outputs the internal signal SG1 directing execution of a trap when decoding the subroutine call instruction, to the instruction executing unit 14. By such a configuration, a break can be effected in a unit of subroutine under a simple control when debugging the program, and by enabling the breaking without decoding a program to be debugged, the debugging can be effected efficiently under a real time environment.
    • 设置有用于设定不执行陷阱指令的第一模式的寄存器18或其中可执行陷阱指令的第二模式的微处理器,其中指令解码电路23在 第一模式,在将子程序调用指令解码时,输出指示执行子程序调用的内部信号SG1到指令执行单元14,并且在第二模式下操作的情况下,输出指示陷阱执行的内部信号SG1, 将子程序调用指令解码到指令执行单元14.通过这样的配置,可以在调试程序时以简单控制的单个子程序进行中断,并且通过在不解码要调试的程序的情况下进行断开, 可以在实时环境下有效地进行调试。