Freescale Semiconductor MCF51QE128RM manual PST/DDATA Specification for User-Mode Instructions

Chapter 18 Version 1 ColdFire Debug (CF1_DEBUG)

where the {...} definition is optional operand information defined by the setting of the CSR.

The CSR provides capabilities to display operands based on reference type (read, write, or both). A PST value {0x08, 0x09, or 0x0B} identifies the size and presence of valid data to follow in the PST trace buffer (PSTB) {1, 2, or 4 bytes}. Additionally, for certain change-of-flow instructions, CSR[BTB] provides the capability to display the target instruction address in the PSTB {2 or 3 bytes} using a PST value of {0x0D or 0x0E}.

18.4.3.4.1User Instruction Set

Table 18-27shows the PST/DDATA specification for user-mode instructions. Rn represents any {Dn, An} register. In this definition, the y suffix generally denotes the source, and x denotes the destination operand. For a given instruction, the optional operand data is displayed only for those effective addresses referencing memory. The DD nomenclature refers to the DDATA outputs.

Table 18-27. PST/DDATA Specification for User-Mode Instructions

Instruction	Operand Syntax	PST/DDATA
add.l	<ea>y,Dx	PST = 0x01, {PST = 0x0B, DD = source operand}
add.l	Dy,<ea>x	PST = 0x01, {PST = 0x0B, DD = source}, {PST = 0x0B, DD = destination}
adda.l	<ea>y,Ax	PST = 0x01, {PST = 0x0B, DD = source operand}
addi.l	#<data>,Dx	PST = 0x01
addq.l	#<data>,<ea>x	PST = 0x01, {PST = 0x0B, DD = source}, {PST = 0x0B, DD = destination}
addx.l	Dy,Dx	PST = 0x01
and.l	<ea>y,Dx	PST = 0x01, {PST = 0x0B, DD = source operand}
and.l	Dy,<ea>x	PST = 0x01, {PST = 0x0B, DD = source}, {PST = 0x0B, DD = destination}
andi.l	#<data>,Dx	PST = 0x01
asl.l	{Dy,#<data>},Dx	PST = 0x01
asr.l	{Dy,#<data>},Dx	PST = 0x01
bcc.{b,w,l}		if taken, then PST = 0x05, else PST = 0x01
bchg.{b,l}	#<data>,<ea>x	PST = 0x01, {PST = 0x08, DD = source}, {PST = 0x08, DD = destination}
bchg.{b,l}	Dy,<ea>x	PST = 0x01, {PST = 0x08, DD = source}, {PST = 0x08, DD = destination}
bclr.{b,l}	#<data>,<ea>x	PST = 0x01, {PST = 0x08, DD = source}, {PST = 0x08, DD = destination}
bclr.{b,l}	Dy,<ea>x	PST = 0x01, {PST = 0x08, DD = source}, {PST = 0x08, DD = destination}
bitrev.l	Dx	PST = 0x01
bra.{b,w,l}		PST = 0x05
bset.{b,l}	#<data>,<ea>x	PST = 0x01, {PST = 0x08, DD = source}, {PST = 0x08, DD = destination}
bset.{b,l}	Dy,<ea>x	PST = 0x01, {PST = 0x08, DD = source}, {PST = 0x08, DD = destination}
bsr.{b,w,l}		PST = 0x05, {PST = 0x0B, DD = destination operand}
btst.{b,l}	#<data>,<ea>x	PST = 0x01, {PST = 0x08, DD = source operand}

	MCF51QE128 MCU Series Reference Manual, Rev. 3
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