Chapter 2
CPU
Extended Calculation Instruction
II - 23
2.4.4
DIVWU 32-bit / 16-bit division (unsigned)
Execution of 32-bit / 16-bit division (unsigned)
1. Store the upper 16-bit of the dividend to DW1 register, the lower 16-bit of the dividend to DW0 register, and
the divisor to A0 register.
2. Execute MOV 0x04, (0x03F07) (Extended calculation macro instruction DIVWU).
3. The value of the unsigned 32-bit which is stored in the DW1 register (upper 16-bit) and DW0 register (lower
16-bit) is divided by the value of the unsigned 16-bit of A0 register. Then the quotient 16-bit of the result is
stored in DW0 register and the remainder 16-bit of the result is stored in DW1 register.
..
This extended calculation instruction is generated by the compiler for MN101L series by
appointing an option (-mmuldivw).
..
..
When this extended calculation instruction is executed, the handy address (HA) is updated in
"0x03F07"
..
DIVWU (MOV 0x04, (0x03F07))
VF
NF
CF
ZF
z
z
0
z
Operation
{DW1, DW0} / A0
→
DW0...DW1
Divides the unsigned 32-bit value which is stored in the DW1 register (upper 16-bit) and DW0
register (lower 16-bit) by the unsigned 16-bit value of A0 register, and stores the quotient 16-
bit of the result in DW0 register and the remainder 16-bit of the result in DW1 register.
Bit Changes
Size, Cycles, Codes
If VF is "0"
VF: 0 (if the quotient is an unsigned
16-bit value)
NF: Set if the MSB of the quotient
is "1", otherwise set to "0".
CF: 0
ZF: Set if the MSB of the quotient is
"0", otherwise set to "0".
If VF is "1"
VF: 1 (if the quotient is not an
unsigned 16-bit value)
NF: Undefined
CF: 0
ZF: Undefined
6 nibbles
21 cycles
0000 0010 0111 0000 0100 0000
Содержание MN101L Series
Страница 1: ...Cover MICROCOMPUTER MN101L MN101LR05D 04D 03D 02D LSI User s Manual Pub No 21705 015E ...
Страница 2: ......
Страница 8: ......
Страница 10: ......
Страница 11: ...Contents Contents 0 ...
Страница 22: ... Contents 11 ...
Страница 23: ...I Chapter 1 Overview 1 ...
Страница 62: ...Chapter 1 Overview I 40 Cautions for Circuit Setup ...
Страница 63: ...II Chapter 2 CPU 2 ...
Страница 94: ...Chapter 2 CPU II 32 Reset ...
Страница 95: ...III Chapter 3 Interrupts 3 ...
Страница 143: ...IV Chapter 4 Clock Mode Voltage Control 4 ...
Страница 175: ...V Chapter 5 Watchdog Timer WDT 5 ...
Страница 180: ...Chapter 5 Watchdog Timer WDT V 6 Operation ...
Страница 181: ...VI Chapter 6 Power Supply Voltage Detection 6 ...
Страница 189: ...VII Chapter 7 I O Port 7 ...
Страница 248: ...Chapter 7 I O Port VII 60 Port 8 ...
Страница 249: ...VIII Chapter 8 8 bit Timer 8 ...
Страница 282: ...Chapter 8 8 bit Timer VIII 34 8 bit Timer Cascade Connection ...
Страница 283: ...IX Chapter 9 16 bit Timer 9 ...
Страница 346: ...Chapter 9 16 bit Timer IX 64 IGBT Output with Dead Time ...
Страница 347: ...X Chapter 10 General Purpose Time Base Free Running Timer 10 ...
Страница 361: ...XI Chapter 11 RTC Time Base Timer RTC TBT 11 ...
Страница 371: ...XII Chapter 12 Real Time Clock RTC 12 ...
Страница 389: ...XIII Chapter 13 Serial Interface 13 ...
Страница 458: ...Chapter 13 Serial Interface XIII 70 IIC Communication ...
Страница 459: ...XIV Chapter 14 DMA Controller 14 ...
Страница 472: ...Chapter 14 DMA Controller XIV 14 DMA Data Transfer ...
Страница 473: ...XV Chapter 15 Buzzer 15 ...
Страница 479: ...XVI Chapter 16 A D Converter ADC 16 ...
Страница 493: ...XVII Chapter 17 LCD 17 ...
Страница 530: ...Chapter 17 LCD XVII 38 LCD Display Examples ...
Страница 531: ...XVIII Chapter 18 ReRAM 18 ...
Страница 538: ...Chapter 18 ReRAM XVIII 8 Command Library ...
Страница 539: ...XIX Chapter 19 On Board Debugger 19 ...
Страница 542: ...Chapter 19 On Board Debugger XIX 4 List of on board debugging functions ...
Страница 543: ...XX Chapter 20 Appendix 20 ...
Страница 555: ...Chapter 20 Appendix Instruction map XX 13 ...