mirror of
https://github.com/netwide-assembler/nasm.git
synced 2025-10-10 00:25:06 -04:00
305f3cee04
Reverted the redundant branch instruction patterns for bnd prefix. And when a relaxed jmp instruction becomes a short (Jb) form, bnd prefix is not needed because it does not initialize bnd registers. So in that case, bnd prefix is silently dropped. BND JMP foo -> drops bnd prefix BND JMP short foo -> shows an explicit error Signed-off-by: Jin Kyu Song <jin.kyu.song@intel.com>
89 lines
1.8 KiB
NASM
89 lines
1.8 KiB
NASM
;Testname=mpx; Arguments=-felf -ompx.o -O0; Files=stdout stderr mpx.o
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BITS 32
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bndmk bnd1, [eax]
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bndmk bnd1, [0x399]
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bndmk bnd1, [ecx+0x3]
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bndmk bnd1, [eax+ecx]
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bndmk bnd1, [ecx*1]
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bndmk bnd1, [edx+1*eax+0x3]
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; bndmov
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bndmov bnd1, [eax]
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bndmov bnd1, [0x399]
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bndmov bnd1, [ecx+0x3]
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bndmov bnd1, [eax+ecx]
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bndmov bnd1, [ecx*1]
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bndmov bnd1, [edx+1*eax+0x3]
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bndmov bnd0, bnd1
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bndmov [eax], bnd1
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bndmov [0x399], bnd1
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bndmov [ecx+0x3], bnd1
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bndmov [eax+ecx], bnd1
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bndmov [ecx*1], bnd1
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bndmov [edx+1*eax+0x3], bnd1
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bndmov bnd1, bnd0
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; bndcl
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bndcl bnd1, [eax]
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bndcl bnd1, ecx
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bndcl bnd1, [0x399]
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bndcl bnd1, [ecx+0x3]
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bndcl bnd1, [eax+ecx]
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bndcl bnd1, [ecx*1]
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bndcl bnd1, [edx+1*eax+0x3]
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; bndcu
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bndcu bnd1, [eax]
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bndcu bnd1, ecx
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bndcu bnd1, [0x399]
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bndcu bnd1, [ecx+0x3]
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bndcu bnd1, [eax+ecx]
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bndcu bnd1, [ecx*1]
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bndcu bnd1, [edx+1*eax+0x3]
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; bndcn
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bndcn bnd1, [eax]
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bndcn bnd1, ecx
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bndcn bnd1, [0x399]
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bndcn bnd1, [ecx+0x3]
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bndcn bnd1, [eax+ecx]
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bndcn bnd1, [ecx*1]
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bndcn bnd1, [edx+1*eax+0x3]
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; bndstx
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bndstx [eax+ebx*1+0x3], bnd0
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bndstx [eax+0x3,ebx], bnd0
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bndstx [eax+0x3], bnd0, ebx
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bndstx [eax+0x3], ebx, bnd0
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bndstx [ecx*1], bnd2
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bndstx [,ecx*1], bnd2
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bndstx [0,ecx*1], bnd2
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bndstx [0], bnd2, ecx
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bndstx [0], ecx, bnd2
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bndstx [edx+0x399], bnd3
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bndstx [1*ebx+3], bnd2
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bndstx [3,1*ebx], bnd2
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bndstx [3], ebx, bnd2
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bndstx [edx], bnd1
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; bndldx
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bndldx bnd0, [eax+ebx*1+0x3]
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bndldx bnd2, [ebx+edx+3]
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bndldx bnd2, [ecx*1]
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bndldx bnd3, [edx+0x399]
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bndldx bnd2, [1*ebx+3]
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bndldx bnd1, [edx]
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; bnd
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bnd ret
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bnd call foo
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bnd jmp foo ; when it becomes a Jb form - short jmp (eb),
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; bnd prefix is silently dropped
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bnd jmp near 0 ; near jmp (opcode e9)
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; bnd jmp short 0 ; explicit short jmp (opcode eb) : error
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bnd jno foo
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foo: bnd ret
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