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back2root:ibm-pc-ms-dos:instr:div

DIV

DIV - Divide

Unsigned binary division of accumulator by source. If the source divisor is a byte value then AX is divided by “src” and the quotient is placed in AL and the remainder in AH. If source operand is a word value, then DX:AX is divided by “src” and the quotient is stored in AX and the remainder in DX.

Usage:

	DIV	src

Modifies flags:

(AF,CF,OF,PF,SF,ZF undefined)

Clocks Size
Operands 808x 286 386 486 Bytes
reg8 80-90 14 14 16 2
reg16 144-162 22 22 24 2
reg32 - - 38 40 2
mem8 (86-104)+EA 17 17 16 2-4
mem16 (150-168)+EA 25 25 24 2-4 (W88=158-176+EA)
mem32 - - 41 40 2-4
back2root/ibm-pc-ms-dos/instr/div.txt · Dernière modification : 2023/03/03 23:53 de 127.0.0.1