LM (Super FX): Difference between revisions

Latest revision as of 11:18, 31 July 2024


Basic Info
Addressing Mode	Opcode	Length	ROM Speed	RAM Speed	Cache Speed
	3DFnxxxx	4 bytes	20 cycles	21 cycles	11 cycles


Flags Affected
B	ALT1	ALT2	O/V	S	CY	Z
0	0	0	.	.	.	.

LM (Load from raM) is a Super FX instruction that loads data from Game Pak RAM.

The ALT0 state is restored.

LM Rn, (xx)

Let:

(70:bacch) = 28h
(70:bacdh) = 96h
RAMBR = 70h

After executing LM R₉, (0bacch):

R₉ = 9628h

@@ Line 2: / Line 2: @@
 !colspan="8"|Basic Info
 |+
+|'''Addressing Mode'''
 |'''Opcode'''
 |'''Length'''
@@ Line 8: / Line 9: @@
 |'''Cache Speed'''
 |+
+|
 |3DFnxxxx
 |4 bytes
@@ Line 21: / Line 23: @@
 |[[ALT1]]
 |[[ALT2]]
-|O/V
+|[[O/V]]
 |[[Sign Flag|S]]
 |[[CY]]
-|Z
+|[[Zero Flag|Z]]
 |+
 |0
@@ Line 35: / Line 37: @@
 |}
-'''LM''' is a [[Super FX]] instruction that loads data from [[Game Pak]] RAM.
+'''LM''' (Load from raM) is a [[Super FX]] instruction that loads data from [[Game Pak]] RAM.
+The [[ALT0]] state is restored.
+==== Syntax ====
+<pre>
+LM Rn, (xx)
+</pre>
+==== Example ====
+Let:
+ (70:bacch) = 28h
+ (70:bacdh) = 96h
+ RAMBR = 70h
+After executing LM R<sub>9</sub>, (0bacch):
+ R<sub>9</sub> = 9628h
 === See Also ===
+* [[Lunar Magic]]
 * [[LMS]]
+* [[RAMB]]
+* [[ALT1]]
+* [[SM]]
+* [[SMS]]
 === External Links ===
-* Official Nintendo documentation on LM: [https://archive.org/details/SNESDevManual/book2/page/n226 Page 2-9-70 of Book II]
+* Official Nintendo documentation on LM: 9.50 on [https://archive.org/details/SNESDevManual/book2/page/n226 Page 2-9-70 of Book II]
 [[Category:ASM]]
 [[Category:Super FX]]
 [[Category:Data Transfer Instructions]]