User guide

198 CHAPTER 11. THE MC PACKAGE

SEQ R

Set the speciﬁed register to one if the ﬁrst operand of a previous CMP instruction

was equal to its second operand, otherwise set it to zero.

SGE R

Set the speciﬁed register to one if the ﬁrst operand of a previous CMP instruction

was greater than or equal to its second operand using signed arithmetic, otherwise set

it to zero.

SGT R

Set the speciﬁed register to one if the ﬁrst operand of a previous CMP instruction

was greater than its second operand using signed arithmetic, otherwise set it to zero.

SLE R

Set the speciﬁed register to one if the ﬁrst operand of a previous CMP instruction

was less than or equal to it s second operand using signed arithmetic, otherwise set it

to zero.

SLT R

Set the speciﬁed register to one if the ﬁrst operand of a previous CMP instruction

was less than its second operand using signed arithmetic, otherwise set it to zero.

SNE R

Set the speciﬁed register to one if the ﬁrst operand of a previous CMP instruction

was not equal to its second operand, otherwise set it to zero.

SUB RA RV RG RM RL RD RDX RDXs RDXsB

RR AR VR GR MR LR DR DXR DXsR DXsBR

RK AK VK GK MK LK DK DXK DXsK DXsBK

Subtract the second operand from the ﬁrst, and set the condition code appropri-

ately.

SUBC RA RV RG RM RL RD RDX RDXs RDXsB

RR AR VR GR MR LR DR DXR DXsR DXsBR

RK AK VK GK MK LK DK DXK DXsK DXsBK

Subtract the con di tion code carry bit and the second operand from the ﬁrst, and

set the condition code appropriately. Subtracting 1 from the 64-bit value held in B:A

can be done by the code generated by:

mcRK( mc_sub, mc_a, 1) // Don’t use DEC here!!

mcRK( mc_subc, mc_b, 0)

UDIV K R A V G M L D DX DXs DXsB

Divide the double length value in D:A by the speciﬁed operand. The res ul t is l ef t

in A an d the remainder in D. The UDIV instruction performs unsigned arithmetic.