MOV1 (SPC700): Difference between revisions

Latest revision as of 14:03, 30 July 2024


Basic Info
Addressing Mode	Opcode	Length	Speed
Absolute Boolean Bit	AA	3 bytes	4 cycles
Absolute Boolean Bit	CA	3 bytes	6 cycles


Flags Affected
Direction	N	V	P	B	H	I	Z	C
to carry	.	.	.	.	.	.	.	C
from carry	.	.	.	.	.	.	.	.

MOV1 is an SPC700 command that moves a memory bit to or from the carry flag. The low 13 bits of the operand byte specify an absolute address. The high 3 bits of the operand byte specify which bit at that absolute address.

The operands are stored in the instruction stream in the opposite order they appear in the assembler source. In the assembler source, the operand on the right is the source and the operand on the left is the destination.

No flags are affected except when moving to the carry flag.

Syntax

MOV1 C, mem. bit
MOV1 mem. bit, C

External Links

Official Super Nintendo development manual on MOV1: Table C-18 in Appendix C-9 of Book I
subparagraph 8.2.3.3 of page 3-8-8, lbid.
anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L504

@@ Line 1: / Line 1: @@
-'''MOV1''' is an [[SPC700]] command that moves a bit to or from the [[carry flag]].
+{| class="wikitable" style="float:right;clear:right;width:40%"
+!colspan="8"|Basic Info
+|+
+|'''Addressing Mode'''
+|'''Opcode'''
+|'''Length'''
+|'''Speed'''
+|+
+|[[Absolute Boolean Bit]]
+|AA
+|3 bytes
+|4 cycles
+|+
+|[[Absolute Boolean Bit]]
+|CA
+|3 bytes
+|6 cycles
+|}
-Opcode: AA and CA
+{| class="wikitable" style="float:right;clear:right;width:30%"
-Bytes: 3
+!colspan="9"|Flags Affected
-Cycles: 4 and 6
+|+
+|Direction
+|[[Negative Flag|N]]
+|[[Overflow Flag|V]]
+|[[Direct Page Flag|P]]
+|[[Break Flag|B]]
+|[[Half-Carry Flag|H]]
+|[[Interrupt Enable Flag|I]]
+|[[Zero Flag|Z]]
+|[[Carry Flag|C]]
+|+
+|to carry
+|.
+|.
+|.
+|.
+|.
+|.
+|.
+|C
+|+
+|from carry
+|.
+|.
+|.
+|.
+|.
+|.
+|.
+|.
+|}
+'''MOV1''' is an [[SPC700]] command that moves a memory bit to or from the [[carry flag]].  The low 13 bits of the operand byte specify an absolute address.  The high 3 bits of the operand byte specify which bit at that absolute address.
+The operands are stored in the instruction stream in the opposite order they appear in the assembler source. In the assembler source, the operand on the right is the source and the operand on the left is the destination.
+No flags are affected except when moving to the carry flag.
+==== Syntax ====
+<pre>
+MOV1 C, mem. bit
+MOV1 mem. bit, C
+</pre>
+=== See Also ===
+* [[MOVW]]
+* [[MOV]]
+* [[AND1]]
+* [[OR1]]
+* [[EOR1]]
+* [[NOT1]]
+=== External Links ===
+* Official Super Nintendo development manual on MOV1: Table C-18 in [https://archive.org/details/SNESDevManual/book1/page/n234 Appendix C-9 of Book I]
+* subparagraph 8.2.3.3 of [https://archive.org/details/SNESDevManual/book1/page/n186 page 3-8-8], lbid.
+* anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L504
 [[Category:ASM]]
 [[Category:SPC700]]
 [[Category:Bit Operation Commands]]
+[[Category:Three-byte Instructions]]