MOV1 (SPC700): Difference between revisions

Revision as of 17:23, 24 July 2023


Basic Info
Addressing Mode	Opcode	Length	Speed
13-bit Absolute	AA	3 bytes	4 cycles
13-bit Absolute	CA	3 bytes	6 cycles


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

External Links

Official Super Nintendo development manual on MOV1: Appendix C-9 of Book I

@@ Line 52: / Line 52: @@
 |}
-'''MOV1''' is an [[SPC700]] command that moves a memory bit to or from the [[carry flag]].  The low 13 bits of the operand specify an absolute address.  The high 3 bits of the operand specify which bit at that absolute address.
+'''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.
 === See Also ===