#include "dis.h" static INLINE void P(GPR_Rm_unk_Rdn_1_tADDhirr)(tdis_ctx ctx, struct bitslice Rdn, struct bitslice Rm) { data(rout(Rdn), r(Rm), r(Rdn)); /* yes, twice */ } static INLINE void P(unk_Rdn_1_tADDrSP)(tdis_ctx ctx, UNUSED struct bitslice Rdn) { /* this doesn't support constants, and nobody's going to add pc, sp, so... */ return P(unidentified)(ctx); } static INLINE void P(GPR_Rm_1_tADDspr)(tdis_ctx ctx, UNUSED struct bitslice Rm) { /* ditto */ return P(unidentified)(ctx); } static INLINE void P(GPR_Rm_B_1_tBX)(tdis_ctx ctx, struct bitslice Rm) { unsigned val = bs_get(Rm, ctx->base.op); if (val == 15) /* bx pc */ return P(bad)(ctx); return P(ret)(ctx); } static INLINE void P(GPR_Rm_unk_Rd_1_tMOVr)(tdis_ctx ctx, struct bitslice Rd, struct bitslice Rm) { unsigned Rd_val = bs_get(Rd, ctx->base.op); unsigned Rm_val = bs_get(Rm, ctx->base.op); /* does anyone do this? */ if (Rd_val == 15) return P(bad)(ctx); if (Rm_val == 15) return P(pcrel)(ctx, ctx->base.pc + 4, (struct arch_pcrel_info) {Rd_val, PLM_ADR}); return P(unidentified)(ctx); } static INLINE void P(tGPR_Rn_reglist_regs_1_tLDMIA)(tdis_ctx ctx, UNUSED struct bitslice regs, UNUSED struct bitslice Rn) { return P(unidentified)(ctx); } static INLINE void P(tGPR_Rn_reglist_regs_S_1_tSTMIA_UPD)(tdis_ctx ctx, UNUSED struct bitslice regs, UNUSED struct bitslice Rn) { return P(unidentified)(ctx); } static INLINE void P(reglist_regs_1_tPOP)(tdis_ctx ctx, struct bitslice regs) { unsigned regs_val = bs_get(regs, ctx->base.op); if(regs_val & (1 << 15)) return P(ret)(ctx); return P(unidentified)(ctx); } static INLINE void P(reglist_regs_S_1_tPUSH)(tdis_ctx ctx, UNUSED struct bitslice regs) { return P(unidentified)(ctx); } static INLINE void P(t_addrmode_pc_addr_unk_Rt_1_tLDRpci)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) { return P(pcrel)(ctx, ((ctx->base.pc + 4) & ~2) + bs_get(addr, ctx->base.op), (struct arch_pcrel_info) {bs_get(Rt, ctx->base.op), PLM_U32}); } static INLINE void P(t_adrlabel_addr_unk_Rd_1_tADR)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rd) { return P(pcrel)(ctx, ((ctx->base.pc + 4) & ~2) + bs_get(addr, ctx->base.op), (struct arch_pcrel_info) {bs_get(Rd, ctx->base.op), PLM_ADR}); } static INLINE void P(t_bcctarget_target_pred_p_B_1_tBcc)(tdis_ctx ctx, struct bitslice target, struct bitslice p) { return P(branch)(ctx, ctx->base.pc + 4 + 2 * sext(bs_get(target, ctx->base.op), 8), CC_ARMCC | bs_get(p, ctx->base.op)); } static INLINE void P(t_brtarget_target_B_1_tB)(tdis_ctx ctx, struct bitslice target) { int cc = ctx->arch.it_conds[0] != 0xe ? CC_ALREADY_IN_IT : 0; return P(branch)(ctx, ctx->base.pc + 4 + 2 * sext(bs_get(target, ctx->base.op), 11), cc); } static INLINE void P(t_cbtarget_target_B_2_tCBNZ)(tdis_ctx ctx, struct bitslice target) { P(branch)(ctx, ctx->base.pc + 4 + 2 * bs_get(target, ctx->base.op), CC_CBXZ); if (ctx->base.modify) { /* change target, and flip z/nz if necessary (i.e. always) */ int new_target = (ctx->base.newop[0] - (ctx->base.pc + 4)) / 2; unsigned new = bs_set(target, new_target, ctx->base.op); if (ctx->base.newop[1]) new ^= 1 << 11; *(uint32_t *) ctx->base.newop = new; } } static INLINE void P(it_pred_cc_it_mask_mask_1_t2IT)(tdis_ctx ctx, struct bitslice mask, struct bitslice cc) { /* why */ unsigned mask_val = bs_get(mask, ctx->base.op); unsigned cc_val = bs_get(cc, ctx->base.op); if (mask_val == 0) return P(unidentified)(ctx); /* nop */ int length = 4 - __builtin_ctz(mask_val); ctx->arch.it_conds[1] = cc_val; for (int i = 0; i < length; i++) ctx->arch.it_conds[i+2] = (cc_val & ~1) | (mask_val >> (3 - i) & 1); return P(thumb_it)(ctx); } static INLINE void P(GPR_func_1_tBLXr)(tdis_ctx ctx, UNUSED struct bitslice func) { return P(indirect_call)(ctx); } static INLINE void P(thumb_do_it)(tdis_ctx ctx) { uint16_t op = ctx->base.op = unaligned_r16(ctx->base.ptr); #include "../generated/generic-dis-thumb.inc.h" __builtin_abort(); } static INLINE void P(dis_thumb)(tdis_ctx ctx) { ctx->base.op_size = ctx->base.newop_size = 2; P(thumb_do_it)(ctx); advance_it_cond(&ctx->arch); }