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Getting the first ARM opcodes right

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This commit is contained in:
Pierre Pronchery 2011-06-11 23:47:45 +00:00
parent baa8076906
commit ad6348c38e
3 changed files with 56 additions and 49 deletions
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1
src/arch/arm.h
View File

@ -36,7 +36,6 @@ static int _arm_write(ArchPlugin * plugin, ArchInstruction * instruction,
uint32_t opcode = instruction->opcode;
/* FIXME really implement */
opcode = _htob32(opcode);
if(helper->write(helper->arch, &opcode, sizeof(opcode))
!= sizeof(opcode))
return -1;

100
src/arch/arm.ins
View File

@ -19,28 +19,32 @@
/* registers */
/* conditions */
#define eq 0x0
#define ne 0x1
#define cs 0x2
#define cc 0x3
#define mi 0x4
#define pl 0x5
#define vs 0x6
#define vc 0x7
#define hi 0x8
#define ls 0x9
#define ge 0xa
#define lt 0xb
#define gt 0xc
#define le 0xd
#define al 0xe
#define eq (0x0 << 28)
#define ne (0x1 << 28)
#define cs (0x2 << 28)
#define cc (0x3 << 28)
#define mi (0x4 << 28)
#define pl (0x5 << 28)
#define vs (0x6 << 28)
#define vc (0x7 << 28)
#define hi (0x8 << 28)
#define ls (0x9 << 28)
#define ge (0xa << 28)
#define lt (0xb << 28)
#define gt (0xc << 28)
#define le (0xd << 28)
#define al (0xe << 28)
/* opcodes */
#define OPNOP AO_IMMEDIATE(0, 32, 0)
#define OP_R AO_REGISTER(0, 32, 0)
/* branch, branch with link */
#define OPB(cond) (cond | 0x5 << 25)
#define OPBL(cond) (cond | 0x5 << 25 | 0x1 << 24)
/* branch and exchange */
#define OPBX(cond) (cond | 0x97ff9 << 4)
#define OPBX(cond) (cond | 0x12fff1 << 4)
/* data processing */
#define OP_DATA2 AO_IMMEDIATE(0, 12, 0)
@ -52,41 +56,41 @@
{ "add", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "and", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
/* b */
{ "b", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "beq", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bne", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bcs", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bcc", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bmi", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bpl", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bvs", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bvc", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bhi", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bls", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bge", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blt", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bgt", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bge", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bal", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "b", OPB(al), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "beq", OPB(eq), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bne", OPB(ne), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bcs", OPB(cs), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bcc", OPB(cc), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bmi", OPB(mi), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bpl", OPB(pl), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bvs", OPB(vs), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bvc", OPB(vc), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bhi", OPB(hi), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bls", OPB(ls), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bge", OPB(ge), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blt", OPB(lt), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bgt", OPB(gt), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bge", OPB(ge), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bal", OPB(al), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
/* bic */
{ "bic", 0x00000000, OPNOP, OP_R, OP_R, OP_DATA2 },
/* bl */
{ "bl", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bleq", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blne", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blcs", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blcc", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blmi", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blpl", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blvs", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blvc", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blhi", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blls", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blge", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bllt", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blgt", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blge", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blal", 0x00000000, OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bl", OPBL(al), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bleq", OPBL(eq), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blne", OPBL(ne), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blcs", OPBL(cs), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blcc", OPBL(cc), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blmi", OPBL(mi), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blpl", OPBL(pl), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blvs", OPBL(vs), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blvc", OPBL(vc), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blhi", OPBL(hi), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blls", OPBL(ls), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blge", OPBL(ge), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "bllt", OPBL(lt), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blgt", OPBL(gt), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blge", OPBL(ge), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
{ "blal", OPBL(al), OPNOP, AOT_NONE, AOT_NONE, AOT_NONE },
/* bx */
{ "bx", OPBX(al), OPNOP, OP_R, AOT_NONE, AOT_NONE },
{ "bxeq", OPBX(eq), OPNOP, OP_R, AOT_NONE, AOT_NONE },

4
test/arm.S
View File

@ -1,4 +1,8 @@
.text
b
beq
bl
bleq
bx %r0
bxeq %r0
bic %r0, %r0, $0x1f