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#include "dis.h"
static inline unsigned flip16(unsigned op) {
return op >> 16 | op << 16;
}
static inline enum pcrel_load_mode get_thumb2_load_mode(unsigned op) {
op = flip16(op);
bool sign = (op >> 8) & 1;
switch ((op >> 5) & 3) {
case 0: return sign ? PLM_S8 : PLM_U8;
case 1: return sign ? PLM_S16 : PLM_U16;
case 2: return PLM_U32;
default: __builtin_abort();
}
}
static INLINE void P(GPR_Rm_unk_Rd_1_t2MOVr)(tdis_ctx ctx, struct bitslice Rm, struct bitslice Rd) {
data(rout(Rd), r(Rm));
}
static INLINE void P(GPR_Rn_reglist_regs_4_t2LDMDB)(tdis_ctx ctx, struct bitslice regs, UNUSED struct bitslice Rn) {
unsigned regs_val = bs_get(regs, ctx->op);
if(regs_val & (1 << 15))
return P(ret)(ctx);
return P(unidentified)(ctx);
}
static INLINE void P(GPR_Rn_reglist_regs_S_4_t2STMDB)(tdis_ctx ctx, UNUSED struct bitslice regs, UNUSED struct bitslice Rn) {
return P(unidentified)(ctx);
}
static INLINE void P(GPR_Rn_unk_Rd_1_t2ADDri12)(tdis_ctx ctx, struct bitslice Rd, struct bitslice Rn) {
data(rout(Rd), r(Rn));
}
static INLINE void P(GPR_Rt_8_VMOVDRR)(tdis_ctx ctx, UNUSED struct bitslice Rt) {
return P(unidentified)(ctx); /* don't care */
}
static INLINE void P(GPR_Rt_t2addrmode_imm12_addr_S_1_t2STRi12)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rs(addr, 13, 4), r(Rt));
}
static INLINE void P(GPR_Rt_t2addrmode_negimm8_addr_S_1_t2STRi8)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rs(addr, 9, 4), r(Rt));
}
static INLINE void P(GPR_Rt_t2addrmode_so_reg_addr_S_1_t2STRs)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rs(addr, 6, 4), rs(addr, 2, 4), r(Rt));
}
static INLINE void P(GPRnopc_Rn_rGPR_Rm_unk_Rd_1_t2ADDrr)(tdis_ctx ctx, struct bitslice Rm, struct bitslice Rd, struct bitslice Rn) {
data(rout(Rd), r(Rm), r(Rn));
}
static INLINE void P(GPRnopc_Rn_unk_Rd_2_t2ADDri)(tdis_ctx ctx, struct bitslice Rd, struct bitslice Rn) {
data(rout(Rd), r(Rn));
}
static INLINE void P(GPRnopc_Rt_t2addrmode_imm8_pre_addr_S_1_t2STR_PRE)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rs(addr, 9, 4), r(Rt));
}
static INLINE void P(GPRnopc_Rt_addr_offset_none_Rn_t2am_imm8_offset_offset_S_1_t2STR_POST)(tdis_ctx ctx, UNUSED struct bitslice offset, struct bitslice Rt, struct bitslice Rn) {
data(r(Rt), r(Rn));
}
static INLINE void P(rGPR_Rt_addr_offset_none_addr_S_4_t2STL)(tdis_ctx ctx, struct bitslice Rt, struct bitslice addr) {
data(rout(Rt), r(addr));
}
static INLINE void P(rGPR_Rt_addr_offset_none_addr_unk_Rd_S_7_t2STLEX)(tdis_ctx ctx, struct bitslice Rd, struct bitslice Rt, struct bitslice addr) {
data(rout(Rd), r(Rt), r(addr));
}
static INLINE void P(addr_offset_none_addr_4_t2LDC2L_OPTION)(tdis_ctx ctx, struct bitslice addr) {
data(r(addr));
}
static INLINE void P(addr_offset_none_addr_S_4_t2STC2L_OPTION)(tdis_ctx ctx, struct bitslice addr) {
data(r(addr));
}
static INLINE void P(addr_offset_none_addr_postidx_imm8s4_offset_4_t2LDC2L_POST)(tdis_ctx ctx, UNUSED struct bitslice offset, struct bitslice addr) {
data(r(addr));
}
static INLINE void P(addr_offset_none_addr_postidx_imm8s4_offset_S_4_t2STC2L_POST)(tdis_ctx ctx, UNUSED struct bitslice offset, struct bitslice addr) {
data(r(addr));
}
static INLINE void P(addr_offset_none_addr_unk_Rt_11_t2LDA)(tdis_ctx ctx, struct bitslice Rt, struct bitslice addr) {
data(rout(Rt), r(addr));
}
static INLINE void P(addrmode5_addr_8_VLDRD)(tdis_ctx ctx, struct bitslice addr) {
data(rs(addr, 9, 4));
}
static INLINE void P(addrmode5_addr_S_4_t2STC2L_OFFSET)(tdis_ctx ctx, struct bitslice addr) {
data(rs(addr, 9, 4));
}
static INLINE void P(addrmode5_pre_addr_4_t2LDC2L_PRE)(tdis_ctx ctx, struct bitslice addr) {
data(rs(addr, 9, 4));
}
static INLINE void P(addrmode5_pre_addr_S_4_t2STC2L_PRE)(tdis_ctx ctx, struct bitslice addr) {
data(rs(addr, 9, 4));
}
static INLINE void P(brtarget_target_B_1_t2Bcc)(tdis_ctx ctx, struct bitslice target) {
return P(branch)(ctx, ctx->pc + 4 + 2 * sext(bs_get(target, ctx->op), 20), /*cond*/ true);
}
static INLINE void P(rGPR_Rt_t2addrmode_imm0_1020s4_addr_unk_Rd_S_1_t2STREX)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt, struct bitslice Rd) {
data(rout(Rd), r(Rt), rs(addr, 8, 4));
}
static INLINE void P(rGPR_Rt_t2addrmode_imm12_addr_S_2_t2STRBi12)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(r(Rt), rs(addr, 13, 4));
}
static INLINE void P(rGPR_Rt_t2addrmode_imm8_pre_addr_S_2_t2STRB_PRE)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(r(Rt), rs(addr, 9, 4));
}
static INLINE void P(rGPR_Rt_t2addrmode_imm8s4_addr_S_1_t2STRDi8)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data_flags(IS_LDRD_STRD, r(Rt), rs(addr, 9, 4));
}
static INLINE void P(rGPR_Rt_t2addrmode_imm8s4_pre_addr_S_1_t2STRD_PRE)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data_flags(IS_LDRD_STRD, r(Rt), rs(addr, 9, 4));
}
static INLINE void P(rGPR_Rt_t2addrmode_negimm8_addr_S_2_t2STRBi8)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(r(Rt), rs(addr, 9, 4));
}
static INLINE void P(rGPR_Rt_t2addrmode_so_reg_addr_S_2_t2STRBs)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rs(addr, 6, 4), rs(Rt, 2, 4), r(Rt));
}
static INLINE void P(rGPR_Rt_addr_offset_none_Rn_t2am_imm8_offset_offset_S_2_t2STRB_POST)(tdis_ctx ctx, UNUSED struct bitslice offset, struct bitslice Rt, struct bitslice Rn) {
data(r(Rt), r(Rn));
}
static INLINE void P(t2addrmode_imm0_1020s4_addr_unk_Rt_1_t2LDREX)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rout(Rt), rs(addr, 8, 4));
}
static INLINE void P(t2addrmode_imm12_addr_unk_Rt_5_t2LDRBi12)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rout(Rt), rs(addr, 13, 4));
}
static INLINE void P(t2addrmode_imm8_addr_unk_Rt_S_3_t2STRBT)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(r(Rt), rs(addr, 9, 4));
}
static INLINE void P(t2addrmode_imm8_pre_addr_unk_Rt_5_t2LDRB_PRE)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rout(Rt), rs(addr, 9, 4));
}
static INLINE void P(addr_offset_none_Rn_t2am_imm8_offset_offset_unk_Rt_5_t2LDRB_POST)(tdis_ctx ctx, UNUSED struct bitslice offset, struct bitslice Rt, struct bitslice Rn) {
data(rout(Rt), r(Rn));
}
static INLINE void P(t2addrmode_imm8s4_addr_unk_Rt_1_t2LDRDi8)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data_flags(IS_LDRD_STRD, rout(Rt), rs(addr, 9, 4));
}
static INLINE void P(t2addrmode_imm8s4_pre_addr_unk_Rt_1_t2LDRD_PRE)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data_flags(IS_LDRD_STRD, rout(Rt), rs(addr, 9, 4));
}
static INLINE void P(t2addrmode_negimm8_addr_unk_Rt_5_t2LDRBi8)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rout(Rt), rs(addr, 9, 4));
}
static INLINE void P(t2addrmode_posimm8_addr_unk_Rt_5_t2LDRBT)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rout(Rt), rs(addr, 9, 4));
}
static INLINE void P(t2addrmode_so_reg_addr_unk_Rt_5_t2LDRBs)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rout(Rt), rs(addr, 6, 4), rs(addr, 2, 4));
}
static INLINE void P(t2adrlabel_addr_unk_Rd_1_t2ADR)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rd) {
return P(pcrel)(ctx, ((ctx->pc + 4) & ~2) + (bs_get(addr, ctx->op) & ((1 << 12) - 1)), bs_get(Rd, ctx->op), PLM_ADR);
}
static INLINE void P(t2ldrlabel_addr_unk_Rt_5_t2LDRBpci)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
return P(pcrel)(ctx, ((ctx->pc + 4) & ~2) + (bs_get(addr, ctx->op) & ((1 << 12) - 1)), bs_get(Rt, ctx->op), get_thumb2_load_mode(ctx->op));
}
static INLINE void P(uncondbrtarget_target_B_1_t2B)(tdis_ctx ctx, struct bitslice target) {
bool cond = ctx->arch.thumb_it_length > 0;
return P(branch)(ctx, ctx->pc + 4 + 2 * sext(bs_get(target, ctx->op), 24), cond);
}
static INLINE void P(unk_Rd_3_t2MOVTi16)(tdis_ctx ctx, struct bitslice Rd) {
data(rout(Rd));
}
static INLINE void P(unk_Rm_B_2_t2TBB)(tdis_ctx ctx, UNUSED struct bitslice Rm) {
/* Ew. Don't bother for now - this is hard to make show up in the first 8 bytes... */
return P(bad)(ctx);
}
static INLINE void P(unk_Rt_13_VMOVRRD)(tdis_ctx ctx, UNUSED struct bitslice Rt) {
return P(unidentified)(ctx);
}
static INLINE void do_it(tdis_ctx ctx) {
uint32_t op = ctx->op;
#include "../generated/generic-dis-thumb2.inc.h"
__builtin_abort();
}
static INLINE void P(dis_thumb2)(tdis_ctx ctx) {
ctx->op = *(uint32_t *) ctx->ptr;
ctx->op_size = 4;
if (ctx->arch.thumb_it_length)
ctx->arch.thumb_it_length--;
/* LLVM likes to think about Thumb2 instructions the way the ARM manual
* does - 15..0 15..0 rather than 31..0 as actually laid out in memory... */
ctx->op = flip16(ctx->op);
do_it(ctx);
TDIS_CTX_SET_NEWOP(ctx, flip16(TDIS_CTX_NEWOP(ctx)));
ctx->op = flip16(ctx->op);
}
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