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-rw-r--r--lib/dis-arm.inc.h100
-rw-r--r--lib/dis.h63
2 files changed, 74 insertions, 89 deletions
diff --git a/lib/dis-arm.inc.h b/lib/dis-arm.inc.h
index 1986132..fe5c45b 100644
--- a/lib/dis-arm.inc.h
+++ b/lib/dis-arm.inc.h
@@ -1,139 +1,147 @@
#include "dis.h"
-template<BSP Rt, BSP addr> static INLINE tdis_ret P(GPRPairOp_Rt_addr_offset_none_addr_S_2_STLEXD)(tdis_ctx ctx) {
+#define r(nn) {.n = nn, .out = false}
+#define rs(nn, l, s) {.n = bs_slice(nn, l, s), .out = false}
+#define rout(nn) {.n = nn, .out = true}
+#define rsout(nn, l, s) {.n = bs_slice(nn, l, s), .out = true}
+#define data(...) \
+ struct dis_data_operand ops[] = {__VA_ARGS__}; \
+ return P(data)(ctx, ops, sizeof(ops)/sizeof(*ops));
+
+static tdis_ret P(GPRPairOp_Rt_addr_offset_none_addr_S_2_STLEXD)(tdis_ctx ctx, struct bitslice Rt, struct bitslice addr) {
data(r(Rt), r(addr));
}
-template<BSP Rm, BSP Rd> static INLINE tdis_ret P(GPR_Rm_unk_Rd_1_MOVr)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rm_unk_Rd_1_MOVr)(tdis_ctx ctx, struct bitslice Rm, struct bitslice Rd) {
data(rout(Rd), r(Rm));
}
-template<BSP Rm, BSP Rd, BSP Rn> static INLINE tdis_ret P(GPR_Rn_GPR_Rm_unk_Rd_1_ADDrr)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rn_GPR_Rm_unk_Rd_1_ADDrr)(tdis_ctx ctx, struct bitslice Rm, struct bitslice Rd, struct bitslice Rn) {
data(rout(Rd), r(Rm), r(Rn));
}
-template<BSP shift, BSP Rd, BSP Rn> static INLINE tdis_ret P(GPR_Rn_so_reg_imm_shift_unk_Rd_1_ADDrsi)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rn_so_reg_imm_shift_unk_Rd_1_ADDrsi)(tdis_ctx ctx, struct bitslice shift, struct bitslice Rd, struct bitslice Rn) {
data(rs(shift, 0, 4), r(Rn), rout(Rd));
}
-template<BSP shift, BSP Rd, BSP Rn> static INLINE tdis_ret P(GPR_Rn_so_reg_reg_shift_unk_Rd_1_ADDrsr)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rn_so_reg_reg_shift_unk_Rd_1_ADDrsr)(tdis_ctx ctx, struct bitslice shift, struct bitslice Rd, struct bitslice Rn) {
data(rs(shift, 0, 4), rs(shift, 8, 4), r(Rn), rout(Rd));
}
-template<BSP Rd, BSP Rn> static INLINE tdis_ret P(GPR_Rn_unk_Rd_1_ADDri)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rn_unk_Rd_1_ADDri)(tdis_ctx ctx, struct bitslice Rd, struct bitslice Rn) {
data(rout(Rd), r(Rn));
}
-template<BSP Rt> static INLINE tdis_ret P(GPR_Rt_4_MCR)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rt_4_MCR)(tdis_ctx ctx, struct bitslice Rt) {
data(r(Rt));
}
-template<BSP Rt, BSP addr> static INLINE tdis_ret P(GPR_Rt_addr_offset_none_addr_S_10_STL)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rt_addr_offset_none_addr_S_10_STL)(tdis_ctx ctx, struct bitslice Rt, struct bitslice addr) {
data(r(addr), rout(Rt));
}
-template<UNUSED BSP offset, BSP Rt, BSP addr> static INLINE tdis_ret P(GPR_Rt_addr_offset_none_addr_am2offset_imm_offset_S_4_STRBT_POST_IMM)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rt_addr_offset_none_addr_am2offset_imm_offset_S_4_STRBT_POST_IMM)(tdis_ctx ctx, UNUSED struct bitslice offset, struct bitslice Rt, struct bitslice addr) {
data(r(addr), r(Rt));
}
-template<BSP offset, BSP Rt, BSP addr> static INLINE tdis_ret P(GPR_Rt_addr_offset_none_addr_am2offset_reg_offset_S_4_STRBT_POST_REG)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rt_addr_offset_none_addr_am2offset_reg_offset_S_4_STRBT_POST_REG)(tdis_ctx ctx, struct bitslice offset, struct bitslice Rt, struct bitslice addr) {
data(r(addr), rs(offset, 0, 4), r(Rt));
}
-template<BSP offset, BSP Rt, BSP addr> static INLINE tdis_ret P(GPR_Rt_addr_offset_none_addr_am3offset_offset_S_2_STRD_POST)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rt_addr_offset_none_addr_am3offset_offset_S_2_STRD_POST)(tdis_ctx ctx, struct bitslice offset, struct bitslice Rt, struct bitslice addr) {
data(r(addr), rs(offset, 0, 4), r(Rt));
}
-template<UNUSED BSP offset, BSP Rt, BSP addr> static INLINE tdis_ret P(GPR_Rt_addr_offset_none_addr_postidx_imm8_offset_S_1_STRHTi)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rt_addr_offset_none_addr_postidx_imm8_offset_S_1_STRHTi)(tdis_ctx ctx, UNUSED struct bitslice offset, struct bitslice Rt, struct bitslice addr) {
data(r(addr), r(Rt));
}
-template<BSP addr, BSP Rt> static INLINE tdis_ret P(GPR_Rt_addrmode3_addr_S_2_STRD)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rt_addrmode3_addr_S_2_STRD)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rs(addr, 9, 4), rs(addr, 0, 4), r(Rt));
}
-template<BSP addr, BSP Rt> static INLINE tdis_ret P(GPR_Rt_addrmode3_pre_addr_S_2_STRD_PRE)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rt_addrmode3_pre_addr_S_2_STRD_PRE)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rs(addr, 9, 4), rs(addr, 0, 4), r(Rt));
}
-template<BSP addr, BSP Rt> static INLINE tdis_ret P(GPR_Rt_addrmode_imm12_addr_S_1_STRi12)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rt_addrmode_imm12_addr_S_1_STRi12)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rs(addr, 13, 4), r(Rt));
}
-template<BSP addr, BSP Rt> static INLINE tdis_ret P(GPR_Rt_addrmode_imm12_pre_addr_S_2_STRB_PRE_IMM)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rt_addrmode_imm12_pre_addr_S_2_STRB_PRE_IMM)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rs(addr, 13, 4), r(Rt));
}
-template<BSP addr, BSP Rt> static INLINE tdis_ret P(GPR_Rt_ldst_so_reg_addr_S_2_STRB_PRE_REG)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rt_ldst_so_reg_addr_S_2_STRB_PRE_REG)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rs(addr, 0, 4), rs(addr, 13, 4), r(Rt));
}
-template<BSP shift, BSP Rt> static INLINE tdis_ret P(GPR_Rt_ldst_so_reg_shift_S_1_STRrs)(tdis_ctx ctx) {
+static tdis_ret P(GPR_Rt_ldst_so_reg_shift_S_1_STRrs)(tdis_ctx ctx, struct bitslice shift, struct bitslice Rt) {
data(rs(shift, 0, 4), rs(shift, 13, 4), r(Rt));
}
-template<UNUSED BSP Rt> static INLINE tdis_ret P(GPRnopc_Rt_4_MCRR)(tdis_ctx ctx) {
- /* need Rt2 but whatever */
+static tdis_ret P(GPRnopc_Rt_4_MCRR)(tdis_ctx ctx, UNUSED struct bitslice Rt) {
+ // need Rt2 but whatever
return P(unidentified)(ctx);
}
-template<BSP addr, BSP Rt> static INLINE tdis_ret P(GPRnopc_Rt_addrmode_imm12_addr_S_1_STRBi12)(tdis_ctx ctx) {
+static tdis_ret P(GPRnopc_Rt_addrmode_imm12_addr_S_1_STRBi12)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rs(addr, 13, 4), r(Rt));
}
-template<BSP shift, BSP Rt> static INLINE tdis_ret P(GPRnopc_Rt_ldst_so_reg_shift_S_1_STRBrs)(tdis_ctx ctx) {
+static tdis_ret P(GPRnopc_Rt_ldst_so_reg_shift_S_1_STRBrs)(tdis_ctx ctx, struct bitslice shift, struct bitslice Rt) {
data(rs(shift, 13, 4), rs(shift, 0, 4), r(Rt));
}
-template<BSP addr> static INLINE tdis_ret P(addr_offset_none_addr_4_LDC2L_OPTION)(tdis_ctx ctx) {
+static tdis_ret P(addr_offset_none_addr_4_LDC2L_OPTION)(tdis_ctx ctx, struct bitslice addr) {
data(r(addr));
}
-template<BSP addr> static INLINE tdis_ret P(addr_offset_none_addr_S_4_STC2L_OPTION)(tdis_ctx ctx) {
+static tdis_ret P(addr_offset_none_addr_S_4_STC2L_OPTION)(tdis_ctx ctx, struct bitslice addr) {
data(r(addr));
}
-template<UNUSED BSP offset, BSP Rt, BSP addr> static INLINE tdis_ret P(addr_offset_none_addr_am2offset_imm_offset_unk_Rt_4_LDRBT_POST_IMM)(tdis_ctx ctx) {
+static tdis_ret P(addr_offset_none_addr_am2offset_imm_offset_unk_Rt_4_LDRBT_POST_IMM)(tdis_ctx ctx, UNUSED struct bitslice offset, struct bitslice Rt, struct bitslice addr) {
data(r(addr), rout(Rt));
}
-template<BSP offset, BSP Rt, BSP addr> static INLINE tdis_ret P(addr_offset_none_addr_am2offset_reg_offset_unk_Rt_4_LDRBT_POST_REG)(tdis_ctx ctx) {
+static tdis_ret P(addr_offset_none_addr_am2offset_reg_offset_unk_Rt_4_LDRBT_POST_REG)(tdis_ctx ctx, struct bitslice offset, struct bitslice Rt, struct bitslice addr) {
data(r(addr), rs(offset, 0, 4), rout(Rt));
}
-template<BSP offset, BSP Rt, BSP addr> static INLINE tdis_ret P(addr_offset_none_addr_am3offset_offset_unk_Rt_4_LDRD_POST)(tdis_ctx ctx) {
+static tdis_ret P(addr_offset_none_addr_am3offset_offset_unk_Rt_4_LDRD_POST)(tdis_ctx ctx, struct bitslice offset, struct bitslice Rt, struct bitslice addr) {
data(r(addr), rs(offset, 0, 4), rout(Rt));
}
-template<UNUSED BSP offset, BSP Rt, BSP addr> static INLINE tdis_ret P(addr_offset_none_addr_postidx_imm8_offset_unk_Rt_3_LDRHTi)(tdis_ctx ctx) {
+static tdis_ret P(addr_offset_none_addr_postidx_imm8_offset_unk_Rt_3_LDRHTi)(tdis_ctx ctx, UNUSED struct bitslice offset, struct bitslice Rt, struct bitslice addr) {
data(r(addr), rout(Rt));
}
-template<UNUSED BSP offset, BSP addr> static INLINE tdis_ret P(addr_offset_none_addr_postidx_imm8s4_offset_4_LDC2L_POST)(tdis_ctx ctx) {
+static tdis_ret P(addr_offset_none_addr_postidx_imm8s4_offset_4_LDC2L_POST)(tdis_ctx ctx, UNUSED struct bitslice offset, struct bitslice addr) {
data(r(addr));
}
-template<UNUSED BSP offset, BSP addr> static INLINE tdis_ret P(addr_offset_none_addr_postidx_imm8s4_offset_S_4_STC2L_POST)(tdis_ctx ctx) {
+static tdis_ret P(addr_offset_none_addr_postidx_imm8s4_offset_S_4_STC2L_POST)(tdis_ctx ctx, UNUSED struct bitslice offset, struct bitslice addr) {
data(r(addr));
}
-template<BSP Rt, BSP addr> static INLINE tdis_ret P(addr_offset_none_addr_unk_Rt_16_LDA)(tdis_ctx ctx) {
+static tdis_ret P(addr_offset_none_addr_unk_Rt_16_LDA)(tdis_ctx ctx, struct bitslice Rt, struct bitslice addr) {
data(r(addr), rout(Rt));
}
-template<BSP addr, BSP Rt> static INLINE tdis_ret P(addrmode3_addr_unk_Rt_4_LDRD)(tdis_ctx ctx) {
+static tdis_ret P(addrmode3_addr_unk_Rt_4_LDRD)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rsout(addr, 9, 4), rs(addr, 0, 4), r(Rt));
}
-template<BSP addr, BSP Rt> static INLINE tdis_ret P(addrmode3_pre_addr_unk_Rt_4_LDRD_PRE)(tdis_ctx ctx) {
+static tdis_ret P(addrmode3_pre_addr_unk_Rt_4_LDRD_PRE)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rsout(addr, 9, 4), rs(addr, 0, 4), r(Rt));
}
-template<BSP addr> static INLINE tdis_ret P(addrmode5_addr_8_LDC2L_OFFSET)(tdis_ctx ctx) {
+static tdis_ret P(addrmode5_addr_8_LDC2L_OFFSET)(tdis_ctx ctx, struct bitslice addr) {
data(rsout(addr, 9, 4));
}
-template<BSP addr> static INLINE tdis_ret P(addrmode5_addr_S_4_STC2L_OFFSET)(tdis_ctx ctx) {
+static tdis_ret P(addrmode5_addr_S_4_STC2L_OFFSET)(tdis_ctx ctx, struct bitslice addr) {
data(rs(addr, 9, 4));
}
-template<BSP addr> static INLINE tdis_ret P(addrmode5_pre_addr_4_LDC2L_PRE)(tdis_ctx ctx) {
+static tdis_ret P(addrmode5_pre_addr_4_LDC2L_PRE)(tdis_ctx ctx, struct bitslice addr) {
data(rs(addr, 9, 4));
}
-template<BSP addr> static INLINE tdis_ret P(addrmode5_pre_addr_S_4_STC2L_PRE)(tdis_ctx ctx) {
+static tdis_ret P(addrmode5_pre_addr_S_4_STC2L_PRE)(tdis_ctx ctx, struct bitslice addr) {
data(rs(addr, 9, 4));
}
-template<BSP addr, BSP Rt> static INLINE tdis_ret P(addrmode_imm12_addr_unk_Rt_2_LDRBi12)(tdis_ctx ctx) {
+static tdis_ret P(addrmode_imm12_addr_unk_Rt_2_LDRBi12)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rs(addr, 13, 4), rout(Rt));
}
-template<BSP addr, BSP Rt> static INLINE tdis_ret P(addrmode_imm12_pre_addr_unk_Rt_2_LDRB_PRE_IMM)(tdis_ctx ctx) {
+static tdis_ret P(addrmode_imm12_pre_addr_unk_Rt_2_LDRB_PRE_IMM)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rs(addr, 13, 4), rout(Rt));
}
-template<BSP label> static INLINE tdis_ret P(adrlabel_label_1_ADR)(tdis_ctx ctx) {
+static tdis_ret P(adrlabel_label_1_ADR)(tdis_ctx ctx, struct bitslice label) {
return P(adr)(ctx, ctx->pc + 8 + bs_get(label, ctx->op));
}
-template<BSP target> static INLINE tdis_ret P(br_target_target_B_1_Bcc)(tdis_ctx ctx) {
+static tdis_ret P(br_target_target_B_1_Bcc)(tdis_ctx ctx, struct bitslice target) {
return P(branch)(ctx, ctx->pc + 8 + sext(bs_get(target, ctx->op), 24));
}
-template<BSP addr, BSP Rt> static INLINE tdis_ret P(ldst_so_reg_addr_unk_Rt_2_LDRB_PRE_REG)(tdis_ctx ctx) {
+static tdis_ret P(ldst_so_reg_addr_unk_Rt_2_LDRB_PRE_REG)(tdis_ctx ctx, struct bitslice addr, struct bitslice Rt) {
data(rs(addr, 0, 4), rs(addr, 13, 4), rout(Rt));
}
-template<BSP shift, BSP Rt> static INLINE tdis_ret P(ldst_so_reg_shift_unk_Rt_2_LDRBrs)(tdis_ctx ctx) {
+static tdis_ret P(ldst_so_reg_shift_unk_Rt_2_LDRBrs)(tdis_ctx ctx, struct bitslice shift, struct bitslice Rt) {
data(rs(shift, 0, 4), rs(shift, 13, 4), rout(Rt));
}
-template<BSP Rm, BSP Rd> static INLINE tdis_ret P(tcGPR_Rm_unk_Rd_1_MOVr_TC)(tdis_ctx ctx) {
+static tdis_ret P(tcGPR_Rm_unk_Rd_1_MOVr_TC)(tdis_ctx ctx, struct bitslice Rm, struct bitslice Rd) {
data(rout(Rd), r(Rm));
}
-template<BSP Rd> static INLINE tdis_ret P(unk_Rd_5_MOVTi16)(tdis_ctx ctx) {
+static tdis_ret P(unk_Rd_5_MOVTi16)(tdis_ctx ctx, struct bitslice Rd) {
data(rout(Rd));
}
-template<BSP Rt> static INLINE tdis_ret P(unk_Rt_13_MRC)(tdis_ctx ctx) {
+static inline tdis_ret P(unk_Rt_13_MRC)(tdis_ctx ctx, struct bitslice Rt) {
data(rout(Rt));
}
diff --git a/lib/dis.h b/lib/dis.h
index 9a87064..a45e5d0 100644
--- a/lib/dis.h
+++ b/lib/dis.h
@@ -1,62 +1,50 @@
#pragma once
#include <stdbool.h>
-#include <stdint.h>
#define UNUSED __attribute__((unused))
-#define INLINE __attribute__((always_inline)) inline
-#ifdef __cplusplus
-#define CONSTEXPR constexpr
-#else
-#define CONSTEXPR
-#endif
struct bitslice_run {
- int8_t inpos, outpos, len;
+ int inpos, outpos, len;
};
struct bitslice {
- int8_t nruns;
- struct bitslice_run runs[6];
+ int nruns;
+ const struct bitslice_run *runs;
};
struct dis_data_operand {
+ struct bitslice n;
bool out;
- const struct bitslice *n;
};
-static inline CONSTEXPR int sext(unsigned val, int bits) {
+static inline int sext(unsigned val, int bits) {
return val & (1 << (bits - 1)) ? ((int)val - (1 << bits)) : (int)val;
}
-static inline CONSTEXPR unsigned bs_get(const struct bitslice *bs, unsigned op) {
+static inline unsigned bs_get(struct bitslice bs, unsigned op) {
unsigned ret = 0;
- for(int i = 0; i < bs->nruns; i++) {
- const struct bitslice_run *run = &bs->runs[i];
+ for(int i = 0; i < bs.nruns; i++) {
+ const struct bitslice_run *run = &bs.runs[i];
unsigned val = (op >> run->inpos) & ((1 << run->len) - 1);
ret |= val << run->outpos;
}
return ret;
}
-static inline CONSTEXPR unsigned bs_set(const struct bitslice *bs, unsigned new_, unsigned op) {
- for(int i = 0; i < bs->nruns; i++) {
- const struct bitslice_run *run = &bs->runs[i];
+static inline unsigned bs_set(struct bitslice bs, unsigned new, unsigned op) {
+ for(int i = 0; i < bs.nruns; i++) {
+ const struct bitslice_run *run = &bs.runs[i];
unsigned mask = (1 << run->len) - 1;
- unsigned val = (new_ >> run->outpos) & mask;
+ unsigned val = (new >> run->outpos) & mask;
op = (op & ~(mask << run->inpos)) | (val << run->inpos);
}
return op;
}
-static inline CONSTEXPR struct bitslice bs_slice(const struct bitslice *bs, int lo, int size) {
- struct bitslice obs
- #ifdef __cplusplus
- {}
- #endif
- ;
- obs.nruns = 0;
- for(int i = 0; i < bs->nruns; i++) {
- struct bitslice_run inr = bs->runs[i];
+static inline struct bitslice bs_slice_(struct bitslice bs, struct bitslice_run *runs, int lo, int size) {
+ int nruns = 0;
+ for(int i = 0; i < bs.nruns; i++) {
+ struct bitslice_run inr = bs.runs[i];
inr.outpos -= lo;
if(inr.outpos < 0) {
inr.len += inr.outpos;
@@ -66,21 +54,10 @@ static inline CONSTEXPR struct bitslice bs_slice(const struct bitslice *bs, int
if(inr.outpos + inr.len > size)
inr.len = size - inr.outpos;
if(inr.len > 0)
- obs.runs[obs.nruns++] = inr;
+ runs[nruns++] = (struct bitslice_run) {inr.inpos, inr.outpos, inr.len};
}
- return obs;
+ return (struct bitslice) {nruns, runs};
}
+#define bs_slice(bs, lo, size) \
+ bs_slice_(bs, alloca((bs).nruns * sizeof(struct bitslice_run)), lo, size)
-
-#ifdef __cplusplus
-#define staticify(ty, ...) [&](){ constexpr static ty bs = __VA_ARGS__; return &bs; }()
-
-#define r(nn) staticify(struct dis_data_operand, {.n = nn, .out = false})
-#define rs(nn, l, s) staticify(struct dis_data_operand, {.n = staticify(struct bitslice, bs_slice(nn, l, s)), .out = false})
-#define rout(nn) staticify(struct dis_data_operand, {.n = nn, .out = true})
-#define rsout(nn, l, s) staticify(struct dis_data_operand, {.n = staticify(struct bitslice, bs_slice(nn, l, s)), .out = true})
-
-#define data(...) return P(data)<__VA_ARGS__>(ctx);
-typedef const struct bitslice *BSP;
-
-#endif
Copyright (C) 2019-2021 Reiko Asakura. All Rights Reserved.