80 lines
3.9 KiB
HTML
80 lines
3.9 KiB
HTML
<html><!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
|
|
<html>
|
|
|
|
<head>
|
|
<title>80386 Programmer's Reference Manual -- Opcode SETcc</title>
|
|
</head>
|
|
|
|
<body>
|
|
<b>up:</b> <a href="C17.HTM" tppabs="http://webster.cs.ucr.edu/Page_TechDocs/Doc386/C17.HTM">Chapter 17 -- 80386 Instruction Set</a><br>
|
|
<b>prev:</b><a href="SCAS.HTM" tppabs="http://webster.cs.ucr.edu/Page_TechDocs/Doc386/SCAS.HTM"> SCAS/SCASB/SCASW/SCASD Compare String Data</a><br>
|
|
<b>next:</b><a href="SGDT.HTM" tppabs="http://webster.cs.ucr.edu/Page_TechDocs/Doc386/SGDT.HTM"> SGDT/SIDT Store Global/Interrupt Descriptor Table Register</a>
|
|
<p>
|
|
<hr>
|
|
<p>
|
|
<h1>SETcc -- Byte Set on Condition</h1>
|
|
<pre>
|
|
|
|
|
|
|
|
Opcode Instruction Clocks Description
|
|
|
|
0F 97 SETA r/m8 4/5 Set byte if above (CF=0 and ZF=0)
|
|
0F 93 SETAE r/m8 4/5 Set byte if above or equal (CF=0)
|
|
0F 92 SETB r/m8 4/5 Set byte if below (CF=1)
|
|
0F 96 SETBE r/m8 4/5 Set byte if below or equal (CF=1 or (ZF=1)
|
|
0F 92 SETC r/m8 4/5 Set if carry (CF=1)
|
|
0F 94 SETE r/m8 4/5 Set byte if equal (ZF=1)
|
|
0F 9F SETG r/m8 4/5 Set byte if greater (ZF=0 or SF=OF)
|
|
0F 9D SETGE r/m8 4/5 Set byte if greater or equal (SF=OF)
|
|
0F 9C SETL r/m8 4/5 Set byte if less (SF<>OF)
|
|
0F 9E SETLE r/m8 4/5 Set byte if less or equal (ZF=1 and
|
|
SF<>OF)
|
|
0F 96 SETNA r/m8 4/5 Set byte if not above (CF=1)
|
|
0F 92 SETNAE r/m8 4/5 Set byte if not above or equal (CF=1)
|
|
0F 93 SETNB r/m8 4/5 Set byte if not below (CF=0)
|
|
0F 97 SETNBE r/m8 4/5 Set byte if not below or equal (CF=0 and
|
|
ZF=0)
|
|
0F 93 SETNC r/m8 4/5 Set byte if not carry (CF=0)
|
|
0F 95 SETNE r/m8 4/5 Set byte if not equal (ZF=0)
|
|
0F 9E SETNG r/m8 4/5 Set byte if not greater (ZF=1 or SF<>OF)
|
|
0F 9C SETNGE r/m8 4/5 Set if not greater or equal (SF<>OF)
|
|
0F 9D SETNL r/m8 4/5 Set byte if not less (SF=OF)
|
|
0F 9F SETNLE r/m8 4/5 Set byte if not less or equal (ZF=1 and
|
|
SF<>OF)
|
|
0F 91 SETNO r/m8 4/5 Set byte if not overflow (OF=0)
|
|
0F 9B SETNP r/m8 4/5 Set byte if not parity (PF=0)
|
|
0F 99 SETNS r/m8 4/5 Set byte if not sign (SF=0)
|
|
0F 95 SETNZ r/m8 4/5 Set byte if not zero (ZF=0)
|
|
0F 90 SETO r/m8 4/5 Set byte if overflow (OF=1)
|
|
0F 9A SETP r/m8 4/5 Set byte if parity (PF=1)
|
|
0F 9A SETPE r/m8 4/5 Set byte if parity even (PF=1)
|
|
0F 9B SETPO r/m8 4/5 Set byte if parity odd (PF=0)
|
|
0F 98 SETS r/m8 4/5 Set byte if sign (SF=1)
|
|
0F 94 SETZ r/m8 4/5 Set byte if zero (ZF=1)
|
|
</pre>
|
|
<h2>Operation</h2>
|
|
<pre>
|
|
|
|
|
|
|
|
IF condition THEN r/m8 := 1 ELSE r/m8 := 0; FI;
|
|
</pre>
|
|
<h2>Description</h2>
|
|
SETcc stores a byte at the destination specified by the effective address or register if the condition is met, or a 0 byte if the condition is not met.
|
|
<h2>Flags Affected</h2>
|
|
None
|
|
<h2>Protected Mode Exceptions</h2>
|
|
#GP(0) if the result is in a non-writable segment; #GP(0) for an illegal memory operand effective address in the CS, DS, ES, FS, or GS segments; #SS(0) for an illegal address in the SS segment; #PF(fault-code) for a page fault
|
|
<h2>Real Address Mode Exceptions</h2>
|
|
Interrupt 13 if any part of the operand would lie outside of the effective address space from 0 to 0FFFFH
|
|
<h2>Virtual 8086 Mode Exceptions</h2>
|
|
Same exceptions as in Real Address Mode; #PF(fault-code) for a page fault
|
|
<p>
|
|
<hr>
|
|
<p><b>up:</b> <a href="C17.HTM" tppabs="http://webster.cs.ucr.edu/Page_TechDocs/Doc386/C17.HTM">Chapter 17 -- 80386 Instruction Set</a><br>
|
|
<b>prev:</b><a href="SCAS.HTM" tppabs="http://webster.cs.ucr.edu/Page_TechDocs/Doc386/SCAS.HTM"> SCAS/SCASB/SCASW/SCASD Compare String Data</a><br>
|
|
<b>next:</b><a href="SGDT.HTM" tppabs="http://webster.cs.ucr.edu/Page_TechDocs/Doc386/SGDT.HTM"> SGDT/SIDT Store Global/Interrupt Descriptor Table Register</a>
|
|
</body>
|
|
|