Freescale Semiconductor StarCore SC140 - Manual (Page 410)

A-96 SC140 DSP Core Reference Manual
BMTSTS.W
BMTSTS.W
Bit-Masked Test a
BMTSTS.W
16-Bit Operand in Memory (BMU)
Description
These operations use an unsigned 16-bit immediate data mask to determine if all selected bits in an
operand are set. If all the selected bits are set, the T bit is set; if not, the T bit is cleared. The absolute
addresses, offsets, and address register values must be word-aligned.
Operation Assembler Syntax
if (#u16 & ~(SP–u5) = $0000), then 1
→ T,
else 0
→ T
BMTSTS.W #u16,(SP–u5){0
≤ u16 < 2 16
}
{0
≤ u5 < 64,W}
if (#u16 & ~(SP+s16) = $0000), then 1
→ T,
else 0
→ T
BMTSTS.W #u16,(SP+s16){0
≤ u16 < 2 16
}
{–2
15 ≤ s16 < 2 15
,W}
if (#u16 & ~(Rn) = $0000), then 1
→ T, else 0 → T
BMTSTS.W #u16,(Rn){0
≤ u16 < 2 16
}
if (#u16 & ~(a16) = $0000), then 1
→ T, else 0 → T
BMTSTS.W #u16,(a16){0
≤ u16 < 2 16
}
{0
≤ a16 < 2 16
,W}
BMTSTS.W #u16,(SP–u5)
Tests selected bits in the contents of a memory address pointed to by the active stack pointer (SP) with an
unsigned 5-bit offset.
BMTSTS.W #u16,(SP+s16)
Tests selected bits in the contents of a memory address pointed to by the active stack pointer (SP) with a
16-bit signed offset.
BMTSTS.W #u16,(Rn)
Tests selected bits in the contents of a memory address pointed to by an address register (Rn).
BMTSTS.W #u16,(a16)
Tests selected bits in the contents of a memory address pointed to by an absolute 16-bit address.