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Merge pull request #941 from citra-emu/armv6-thumb-mov

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Dyncom: Support for a new ARMv6 Thumb MOV encoding
This commit is contained in:
Yuri Kunde Schlesner 2015-07-18 12:49:02 -07:00
commit 71be5853e0
1 changed files with 4 additions and 10 deletions
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14
src/core/arm/dyncom/arm_dyncom_thumb.cpp
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@ -130,14 +130,13 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) {
} }
} else { } else {
ARMword Rd = ((tinstr & 0x0007) >> 0); ARMword Rd = ((tinstr & 0x0007) >> 0);
ARMword Rs = ((tinstr & 0x0038) >> 3); ARMword Rs = ((tinstr & 0x0078) >> 3);
if (tinstr & (1 << 7)) if (tinstr & (1 << 7))
Rd += 8; Rd += 8;
if (tinstr & (1 << 6))
Rs += 8;
switch ((tinstr & 0x03C0) >> 6) { switch ((tinstr & 0x03C0) >> 6) {
case 0x0: // ADD Rd,Rd,Rs
case 0x1: // ADD Rd,Rd,Hs case 0x1: // ADD Rd,Rd,Hs
case 0x2: // ADD Hd,Hd,Rs case 0x2: // ADD Hd,Hd,Rs
case 0x3: // ADD Hd,Hd,Hs case 0x3: // ADD Hd,Hd,Hs
@ -146,19 +145,19 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) {
|(Rd << 12) // Rd |(Rd << 12) // Rd
|(Rs << 0); // Rm |(Rs << 0); // Rm
break; break;
case 0x4: // CMP Rd,Rs
case 0x5: // CMP Rd,Hs case 0x5: // CMP Rd,Hs
case 0x6: // CMP Hd,Rs case 0x6: // CMP Hd,Rs
case 0x7: // CMP Hd,Hs case 0x7: // CMP Hd,Hs
*ainstr = 0xE1500000 // base *ainstr = 0xE1500000 // base
| (Rd << 16) // Rn | (Rd << 16) // Rn
|(Rd << 12) // Rd
|(Rs << 0); // Rm |(Rs << 0); // Rm
break; break;
case 0x8: // MOV Rd,Rs
case 0x9: // MOV Rd,Hs case 0x9: // MOV Rd,Hs
case 0xA: // MOV Hd,Rs case 0xA: // MOV Hd,Rs
case 0xB: // MOV Hd,Hs case 0xB: // MOV Hd,Hs
*ainstr = 0xE1A00000 // base *ainstr = 0xE1A00000 // base
| (Rd << 16) // Rn
|(Rd << 12) // Rd |(Rd << 12) // Rd
|(Rs << 0); // Rm |(Rs << 0); // Rm
break; break;
@ -167,11 +166,6 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) {
*ainstr = 0xE12FFF10 // base *ainstr = 0xE12FFF10 // base
| ((tinstr & 0x0078) >> 3); // Rd | ((tinstr & 0x0078) >> 3); // Rd
break; break;
case 0x0: // UNDEFINED
case 0x4: // UNDEFINED
case 0x8: // UNDEFINED
valid = t_undefined;
break;
case 0xE: // BLX case 0xE: // BLX
case 0xF: // BLX case 0xF: // BLX
*ainstr = 0xE1200030 // base *ainstr = 0xE1200030 // base