Sign Flag - Revision history

Mr z: Protected "Sign Flag" ([edit=autoconfirmed] (indefinite) [move=autoconfirmed] (indefinite))

2010-12-04T09:25:12Z

Protected "Sign Flag" ([edit=autoconfirmed] (indefinite) [move=autoconfirmed] (indefinite))

Mr z at 01:08, 12 January 2005

2005-01-12T01:08:49Z

Pingaso at 17:01, 11 January 2005

2005-01-11T17:01:10Z

209.108.192.30 at 16:42, 11 January 2005

2005-01-11T16:42:21Z

New page

[[Category:CP1610]]
If set, indicates that the previous operation resulted in negative value, which is determined by a one (1) in bit 15 of the result. This flag is affected by the following opcodes.

@@ Line 1: / Line 1: @@
 [[Category:CP1610]]
-The Sign Flag (S), if set, indicates that the previous operation resulted in negative value, which is determined by a one (1) in bit 15 of the result.  If clear, then the previous operation resulted in a positive value, determined by a zeron (0) in bit 15 of the result.  The behavior of the following opcodes is affected by the current value of the Sign Flag.<br/>
+The Sign Flag (S), if set, indicates that the previous operation resulted in negative value, which is determined by a one (1) in bit 15 of the result.  If clear, then the previous operation resulted in a positive value, determined by a zero (0) in bit 15 of the result.  The behavior of the following opcodes is affected by the current value of the Sign Flag.<br/>
 <br/>
 [[BMI]]<br/>

← Older revision		Revision as of 17:01, 11 January 2005
Line 1:		Line 1:
	[[Category:CP1610]]		[[Category:CP1610]]
−	If set, indicates that the previous operation resulted in negative value, which is determined by a one (1) in bit 15 of the result. ~~This flag~~ is affected by the following opcodes.	+	The Sign Flag (S), if set, indicates that the previous operation resulted in negative value, which is determined by a one (1) in bit 15 of the result. If clear, then the previous operation resulted in a positive value, determined by a zeron (0) in bit 15 of the result. The behavior of the following opcodes is affected by the current value of the Sign Flag.<br/>
		+	<br/>
		+	[[BMI]]<br/>
		+	[[BPL]]<br/>
		+	[[BGE]]<br/>
		+	[[BGT]]<br/>
		+	[[BLE]]<br/>
		+	[[BLT]]<br/>
		+	[[BUSC]]<br/>
		+	[[BESC]]<br/>
		+	[[GSWD]]<br/>
		+	<br/>
		+	In addition to affecting the opcodes above, the Sign Flag is affected by the following opcodes.<br/>
		+	<br/>
		+	[[INCR]]<br/>
		+	[[DECR]]<br/>
		+	[[COMR]]<br/>
		+	[[NEGR]]<br/>
		+	[[ADCR]]<br/>
		+	[[RSWD]]*<br/>
		+	[[SWAP]]*<br/>
		+	[[SLL]]<br/>
		+	[[RLC]]<br/>
		+	[[SLLC]]<br/>
		+	[[SLR]]*<br/>
		+	[[SAR]]*<br/>
		+	[[RRC]]*<br/>
		+	[[SARC]]*<br/>
		+	[[MOVR]]<br/>
		+	[[ADDR]]<br/>
		+	[[SUBR]]<br/>
		+	[[CMPR]]<br/>
		+	[[ANDR]]<br/>
		+	[[XORR]]<br/>
		+	[[ADD]]<br/>
		+	[[ADD@]]<br/>
		+	[[SUB]]<br/>
		+	[[SUB@]]<br/>
		+	[[CMP]]<br/>
		+	[[CMP@]]<br/>
		+	[[AND]]<br/>
		+	[[AND@]]<br/>
		+	[[XOR]]<br/>
		+	[[XOR@]]<br/>
		+	<br/>
		+	* Indicates slight variation from normal Sign Flag behavior. See opcode documentation for more details.

← Older revision	Revision as of 09:25, 4 December 2010
(No difference)