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Extension Instruction Specifications
3-11
MULQ (Signed high-speed multiplication instruction: between registers)
[Instruction Format (Macro Name)]
MULQ Dm, Dn
[Assembler Mnemonic]
udf00 Dm, Dn
[Operation]
This instruction performs multiplication quickly using the multiplier of the extension function unit.
The contents of Dm (signed 32-bit integer: multiplicand) and Dn (signed 32-bit integer: multiplier) are multiplied,
and the upper 32 bits of the results (64 bits) are written into the high-speed multiply register MDRQ and the lower
32 bits into Dn.
The significant value range of the multiplicand stored in Dm before the operation is judged (starting point: LSB,
judgment unit: 2 bytes), and the operation is only performed for the range containing these significant values. In
other words, the smaller the absolute value of the contents stored in Dm, the quicker operation results can be
obtained.
[Flag Changes]
Flag
Change
Condition
V
*
Undefined
C
*
Undefined
N
+
1 when MSB of the lower 32 bits of the results is 1; 0 in all other cases
Z
+
1 when the lower 32 bits of results are 0; 0 in all other cases
[Programming Cautions]
PSW updating by flag changes is delayed by one instruction.
However, Bcc and Lcc instructions can evaluate flags without waiting for flag reflection to PSW.
Содержание MN103001G/F01K
Страница 1: ...MICROCOMPUTER MN1030 MN103001G F01K LSI User s Manual Pub No 23101 050E ...
Страница 2: ......
Страница 4: ......
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Страница 7: ...14 A D Converter 15 I O Ports 16 Internal Flash Memory 17 Ordering Mask ROM Appendix 14 15 16 17 ...
Страница 8: ......
Страница 9: ...Table of Contents List of Figures and Tables 0 ...
Страница 26: ...xviii ...
Страница 27: ...1 0 1 General Specifications ...
Страница 35: ...2 CPU 2 ...
Страница 57: ...3 Extension Instruction Specifications 3 ...
Страница 96: ...Extension Instruction Specifications 3 40 ...
Страница 97: ...4 Memory Modes 3 4 ...
Страница 102: ...Memory Modes 4 6 ...
Страница 103: ...5 Operating Mode 5 ...
Страница 107: ...6 Clock Generator 6 13 ...
Страница 111: ...7 Internal Memory 7 ...
Страница 114: ...Internal Memory 7 4 ...
Страница 115: ...8 Bus Controller BC 8 ...
Страница 189: ...9 Interrupt Controller 9 ...
Страница 220: ...Interrupt Controller 9 32 ...
Страница 221: ...10 8 bit Timers 9 10 ...
Страница 254: ...8 bit Timers 10 34 ...
Страница 255: ...11 16 bit Timers 11 ...
Страница 292: ...16 bit Timers 11 38 ...
Страница 293: ...12 Watchdog Timer 11 12 ...
Страница 302: ...Watchdog Timer 12 10 ...
Страница 303: ...13 Serial Interface 13 ...
Страница 354: ...Serial Interface 13 52 ...
Страница 355: ...14 A D Converter 14 ...
Страница 367: ...15 I O Ports 15 ...
Страница 431: ...16 Internal Flash Memory 16 ...
Страница 439: ...17 17 Ordering Mask ROM ...
Страница 442: ...Ordering Mask ROM 17 4 ...
Страница 443: ...Appendix ...