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add thumb lsr op

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Sven Steinbauer 2017-05-04 11:56:20 +01:00 committed by radare
parent 905cb24851
commit 028878f87a
1 changed files with 21 additions and 0 deletions
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21
libr/asm/arch/arm/armass.c
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@ -919,6 +919,27 @@ static int thumb_assemble(ArmOpcode *ao, ut64 off, const char *str) {
opcode |= Rd;
ao->o = (opcode >> 8) | ((opcode & 0xff) << 8);
return 2;
} else
if (!strcmpnull (ao->op, "lsr")) {
ao->o = 0x4fea1000;
int Rd = getreg (ao->a[0]);
int Rm = getreg (ao->a[1]);
int a2 = getnum (ao->a[2]);
if ((Rd < 0) || (Rd > 14) || (Rm < 0) || (Rm > 14) ||
(a2 <= 0) || (a2 > 32)) {
return 0;
}
ao->o |= Rd;
ao->o |= Rm << 8;
if (a2 == 32) {
a2 = 0;
}
int a2b = a2 & 3;
ao->o |= a2b << 14;
int a2h = a2 >> 2;
ao->o |= a2h << 4;
return 4;
}
return 0;
}