Infineon TriCore TC1.6E - LT.B - Less than Packed Byte; LT.BU

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TriCore

TC1.6P & TC1.6E

32-bit Unified Processor Core

Instruction Set

V1.0 2013-07

User Manual (Volume 2) 3-180

LT.B

Less Than Packed Byte

LT.BU

Less Than Packed Byte Unsigned

Description

Compare each byte of data register D[a] with the corresponding byte of D[b]. In each case, if the value of the byte

in D[a] is less than the value of the byte in D[b], set all bits in the corresponding byte of D[c] to one; otherwise clear

all the bits. The operands are treated as signed (LT.B) or unsigned (LT.BU) 8-bit integers.

LT.BD[c], D[a], D[b] (RR)

D[c][31:24] = (D[a][31:24] < D[b][31:24]) ? 8’hFF : 8’h00;

D[c][23:16] = (D[a][23:16] < D[b][23:16]) ? 8’hFF : 8’h00;

D[c][15:8] = (D[a][15:8] < D[b][15:8]) ? 8’hFF : 8’h00;

D[c][7:0] = (D[a][7:0] < D[b][7:0]) ? 8’hFF : 8’h00;

LT.BUD[c], D[a], D[b] (RR)

D[c][31:24] = (D[a][31:24] < D[b][31:24]) ? 8’hFF : 8’h00; // unsigned

D[c][23:16] = (D[a][23:16] < D[b][23:16]) ? 8’hFF : 8’h00; // unsigned

D[c][15:8] = (D[a][15:8] < D[b][15:8]) ? 8’hFF : 8’h00; // unsigned

D[c][7:0] = (D[a][7:0] < D[b][7:0]) ? 8’hFF : 8’h00; // unsigned

Status Flags

Examples

lt.b d3, d1, d2

lt.bu d3, d1, d2

Infineon TriCore TC1.6E - LT.B - Less than Packed Byte; LT.BU - Less than Packed Byte Unsigned