Texas Instruments MSP50C6xx Class 8a Instruction Description, Class 8b Instruction Description

Instruction Classification

Table 4–33. Class 8a Instruction Description

	C8a		Mnemonic	Description
0	0	0	MOV TFn, {flagadrs}	Load flag bit (17th bit) from data memory referred by flag addressing mode
				{flagadrs} to either TF1 or TF2 in status register. Load with inverted value if
				Not =1.
0	1	0	OR TFn, {flagadrs}	Logically OR either TF1 or TF2 with flag bit (17th bit) from data memory
				referred by flag addressing mode {flagadrs} (or inverted value if N=1)
				addressed by the instruction and store back to TF1 or TF2 respectively.
1	0	0	AND TFn, {flagadrs}	Logically AND either TF1 or TF2 with flag bit (17th bit) from data memory
				referred by flag addressing mode {flagadrs} (or inverted value if Not =1)
				addressed by the instruction and store back to TF1 or TF2 respectively.
1	1	0	XOR TFn, {flagadrs}	Logically exclusive OR either TF1 or TF2 with flag bit (17th bit) from data
				memory in {flagadrs} if Not =1(or inverted value if Not =0) addressed by the
				instruction and store back to TF1 or TF2 respectively.
0	0	1	MOV {flagadrs}, TFn	Store TF1 or TF2 to flag bit (17th bit) from data memory referred by flag
				addressing mode {flagadrs}.
Table 4–32			RFLAG {flagadrs}	Reset flag bit (17th bit) from data memory referred by flag addressing mode
				{flagadrs}.to 0
Table 4–32			SFLAG {flagadrs}	Set flag bit (17th bit) from data memory referred by flag addressing mode
				{flagadrs}.to 1

Table 4–34. Class 8b Instruction Description

C8b		Mnemonic	Description
0	0	MOV TFn, {cc} [, Rx]	Load a logic value of the tested condition to one of the test flag bits in
			status register (TF1 or TF2).
0	1	OR TFn, {cc} [, Rx]	Logically modify one of the two test flags in status register (TF1 or TF2) by
			ORing it with the status condition specified.
1	0	AND TFn, {cc} [, Rx]	Logically modify one of the two test flags in status register (TF1 or TF2) by
			ANDing it with the status condition specified.
1	1	XOR TFn, {cc} [, Rx]	Logically modify one of the two test flags in status register (TF1 or TF2) by
			EXCLUSIVE ORing it with the status condition specified. For this instruction
			the polarity of Not is inverted (Not =1 for XOR, Not=0 for XNOR).

4.4.9Class 9 Instructions: Miscellaneous

This instruction class includes all the remaining instructions that do not fit in the previous classes. Some instructions have byte wide operand fields and others have no operands. One subclass is a set of instructions that provide specific DSP functions (FIR filters). Another subclass provides some hardware/ software loop capability. Ten instructions provide the means to set or reset five different status mode bits independently.

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