diff options
Diffstat (limited to 'other-licenses/7zstub/src/C/Bra.c')
| -rw-r--r-- | other-licenses/7zstub/src/C/Bra.c | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/C/Bra.c b/other-licenses/7zstub/src/C/Bra.c new file mode 100644 index 0000000000..cbdcb290df --- /dev/null +++ b/other-licenses/7zstub/src/C/Bra.c @@ -0,0 +1,230 @@ +/* Bra.c -- Converters for RISC code
+2017-04-04 : Igor Pavlov : Public domain */
+
+#include "Precomp.h"
+
+#include "CpuArch.h"
+#include "Bra.h"
+
+SizeT ARM_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
+{
+ Byte *p;
+ const Byte *lim;
+ size &= ~(size_t)3;
+ ip += 4;
+ p = data;
+ lim = data + size;
+
+ if (encoding)
+
+ for (;;)
+ {
+ for (;;)
+ {
+ if (p >= lim)
+ return p - data;
+ p += 4;
+ if (p[-1] == 0xEB)
+ break;
+ }
+ {
+ UInt32 v = GetUi32(p - 4);
+ v <<= 2;
+ v += ip + (UInt32)(p - data);
+ v >>= 2;
+ v &= 0x00FFFFFF;
+ v |= 0xEB000000;
+ SetUi32(p - 4, v);
+ }
+ }
+
+ for (;;)
+ {
+ for (;;)
+ {
+ if (p >= lim)
+ return p - data;
+ p += 4;
+ if (p[-1] == 0xEB)
+ break;
+ }
+ {
+ UInt32 v = GetUi32(p - 4);
+ v <<= 2;
+ v -= ip + (UInt32)(p - data);
+ v >>= 2;
+ v &= 0x00FFFFFF;
+ v |= 0xEB000000;
+ SetUi32(p - 4, v);
+ }
+ }
+}
+
+
+SizeT ARMT_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
+{
+ Byte *p;
+ const Byte *lim;
+ size &= ~(size_t)1;
+ p = data;
+ lim = data + size - 4;
+
+ if (encoding)
+
+ for (;;)
+ {
+ UInt32 b1;
+ for (;;)
+ {
+ UInt32 b3;
+ if (p > lim)
+ return p - data;
+ b1 = p[1];
+ b3 = p[3];
+ p += 2;
+ b1 ^= 8;
+ if ((b3 & b1) >= 0xF8)
+ break;
+ }
+ {
+ UInt32 v =
+ ((UInt32)b1 << 19)
+ + (((UInt32)p[1] & 0x7) << 8)
+ + (((UInt32)p[-2] << 11))
+ + (p[0]);
+
+ p += 2;
+ {
+ UInt32 cur = (ip + (UInt32)(p - data)) >> 1;
+ v += cur;
+ }
+
+ p[-4] = (Byte)(v >> 11);
+ p[-3] = (Byte)(0xF0 | ((v >> 19) & 0x7));
+ p[-2] = (Byte)v;
+ p[-1] = (Byte)(0xF8 | (v >> 8));
+ }
+ }
+
+ for (;;)
+ {
+ UInt32 b1;
+ for (;;)
+ {
+ UInt32 b3;
+ if (p > lim)
+ return p - data;
+ b1 = p[1];
+ b3 = p[3];
+ p += 2;
+ b1 ^= 8;
+ if ((b3 & b1) >= 0xF8)
+ break;
+ }
+ {
+ UInt32 v =
+ ((UInt32)b1 << 19)
+ + (((UInt32)p[1] & 0x7) << 8)
+ + (((UInt32)p[-2] << 11))
+ + (p[0]);
+
+ p += 2;
+ {
+ UInt32 cur = (ip + (UInt32)(p - data)) >> 1;
+ v -= cur;
+ }
+
+ /*
+ SetUi16(p - 4, (UInt16)(((v >> 11) & 0x7FF) | 0xF000));
+ SetUi16(p - 2, (UInt16)(v | 0xF800));
+ */
+
+ p[-4] = (Byte)(v >> 11);
+ p[-3] = (Byte)(0xF0 | ((v >> 19) & 0x7));
+ p[-2] = (Byte)v;
+ p[-1] = (Byte)(0xF8 | (v >> 8));
+ }
+ }
+}
+
+
+SizeT PPC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
+{
+ Byte *p;
+ const Byte *lim;
+ size &= ~(size_t)3;
+ ip -= 4;
+ p = data;
+ lim = data + size;
+
+ for (;;)
+ {
+ for (;;)
+ {
+ if (p >= lim)
+ return p - data;
+ p += 4;
+ /* if ((v & 0xFC000003) == 0x48000001) */
+ if ((p[-4] & 0xFC) == 0x48 && (p[-1] & 3) == 1)
+ break;
+ }
+ {
+ UInt32 v = GetBe32(p - 4);
+ if (encoding)
+ v += ip + (UInt32)(p - data);
+ else
+ v -= ip + (UInt32)(p - data);
+ v &= 0x03FFFFFF;
+ v |= 0x48000000;
+ SetBe32(p - 4, v);
+ }
+ }
+}
+
+
+SizeT SPARC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
+{
+ Byte *p;
+ const Byte *lim;
+ size &= ~(size_t)3;
+ ip -= 4;
+ p = data;
+ lim = data + size;
+
+ for (;;)
+ {
+ for (;;)
+ {
+ if (p >= lim)
+ return p - data;
+ /*
+ v = GetBe32(p);
+ p += 4;
+ m = v + ((UInt32)5 << 29);
+ m ^= (UInt32)7 << 29;
+ m += (UInt32)1 << 22;
+ if ((m & ((UInt32)0x1FF << 23)) == 0)
+ break;
+ */
+ p += 4;
+ if ((p[-4] == 0x40 && (p[-3] & 0xC0) == 0) ||
+ (p[-4] == 0x7F && (p[-3] >= 0xC0)))
+ break;
+ }
+ {
+ UInt32 v = GetBe32(p - 4);
+ v <<= 2;
+ if (encoding)
+ v += ip + (UInt32)(p - data);
+ else
+ v -= ip + (UInt32)(p - data);
+
+ v &= 0x01FFFFFF;
+ v -= (UInt32)1 << 24;
+ v ^= 0xFF000000;
+ v >>= 2;
+ v |= 0x40000000;
+ SetBe32(p - 4, v);
+ }
+ }
+}
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