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# Blackfin testcase for setting all ASTAT bits via CC
# mach: bfin
# We encode the opcodes directly since we test reserved bits
# which lack an insn in the ISA for it. It's a 16bit insn;
# the low 8 bits are always 0x03 while the encoding for the
# high 8 bits are:
# bit 7 - direction
# 0: CC=...;
# 1: ...=CC;
# bit 6/5 - operation
# 0: = assignment
# 1: | bit or
# 2: & bit and
# 3: ^ bit xor
# bit 4-0 - the bit in ASTAT to access
.include "testutils.inc"
.macro _do dir:req, op:req, bit:req, bit_in:req, cc_in:req, bg_val:req, bit_out:req, cc_out:req
/* CC = CC; is invalid, so skip it */
.if \bit != 5
/* Calculate the before and after ASTAT values */
imm32 R1, (\bg_val & ~((1 << \bit) | (1 << 5))) | (\bit_in << \bit) | (\cc_in << 5);
imm32 R3, (\bg_val & ~((1 << \bit) | (1 << 5))) | (\bit_out << \bit) | (\cc_out << 5);
/* Test the actual opcode */
ASTAT = R1;
.byte (\dir << 7) | (\op << 5) | \bit
.byte 0x03
R2 = ASTAT;
/* Make sure things line up */
CC = R3 == R2;
IF !CC JUMP 1f;
JUMP 2f;
1: fail
2:
.endif
/* Recurse through all the bits */
.if \bit > 0
_do \dir, \op, \bit - 1, \bit_in, \cc_in, \bg_val, \bit_out, \cc_out
.endif
.endm
/* Test different background fields on ASTAT */
.macro do dir:req, op:req, bit_in:req, cc_in:req, bit_out:req, cc_out:req
_do \dir, \op, 31, \bit_in, \cc_in, 0, \bit_out, \cc_out
_do \dir, \op, 31, \bit_in, \cc_in, -1, \bit_out, \cc_out
.endm
start
nop;
_cc_eq_bit: /* CC = bit */
do 0, 0, 0, 0, 0, 0
do 0, 0, 0, 1, 0, 0
do 0, 0, 1, 0, 1, 1
do 0, 0, 1, 1, 1, 1
_bit_eq_cc: /* bit = CC */
do 1, 0, 0, 0, 0, 0
do 1, 0, 0, 1, 1, 1
do 1, 0, 1, 0, 0, 0
do 1, 0, 1, 1, 1, 1
_cc_or_bit: /* CC |= bit */
do 0, 1, 0, 0, 0, 0
do 0, 1, 0, 1, 0, 1
do 0, 1, 1, 0, 1, 1
do 0, 1, 1, 1, 1, 1
_bit_or_cc: /* bit |= CC */
do 1, 1, 0, 0, 0, 0
do 1, 1, 0, 1, 1, 1
do 1, 1, 1, 0, 1, 0
do 1, 1, 1, 1, 1, 1
_cc_and_bit: /* CC &= bit */
do 0, 2, 0, 0, 0, 0
do 0, 2, 0, 1, 0, 0
do 0, 2, 1, 0, 1, 0
do 0, 2, 1, 1, 1, 1
_bit_and_cc: /* bit &= CC */
do 1, 2, 0, 0, 0, 0
do 1, 2, 0, 1, 0, 1
do 1, 2, 1, 0, 0, 0
do 1, 2, 1, 1, 1, 1
_cc_xor_bit: /* CC ^= bit */
do 0, 3, 0, 0, 0, 0
do 0, 3, 0, 1, 0, 1
do 0, 3, 1, 0, 1, 1
do 0, 3, 1, 1, 1, 0
_bit_xor_cc: /* bit ^= CC */
do 1, 3, 0, 0, 0, 0
do 1, 3, 0, 1, 1, 1
do 1, 3, 1, 0, 1, 0
do 1, 3, 1, 1, 0, 1
pass
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