arm_dyncom_thumb: Merge STR/LDR table subsets.
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@ -189,30 +189,19 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) {
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case 10:
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case 11:
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// TODO: Format 7 and Format 8 perform the same ARM encoding, so the following could be
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// merged into a single subset, saving on the following boolean:
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if ((tinstr & (1 << 9)) == 0) {
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static const ARMword subset[4] = {
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{
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static const ARMword subset[8] = {
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0xE7800000, // STR Rd,[Rb,Ro]
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0xE7C00000, // STRB Rd,[Rb,Ro]
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0xE7900000, // LDR Rd,[Rb,Ro]
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0xE7D00000 // LDRB Rd,[Rb,Ro]
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};
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*ainstr = subset[(tinstr & 0x0C00) >> 10] // base
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|((tinstr & 0x0007) << (12 - 0)) // Rd
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|((tinstr & 0x0038) << (16 - 3)) // Rb
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|((tinstr & 0x01C0) >> 6); // Ro
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} else {
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static const ARMword subset[4] = {
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0xE18000B0, // STRH Rd,[Rb,Ro]
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0xE7C00000, // STRB Rd,[Rb,Ro]
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0xE19000D0, // LDRSB Rd,[Rb,Ro]
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0xE7900000, // LDR Rd,[Rb,Ro]
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0xE19000B0, // LDRH Rd,[Rb,Ro]
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0xE7D00000, // LDRB Rd,[Rb,Ro]
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0xE19000F0 // LDRSH Rd,[Rb,Ro]
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};
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*ainstr = subset[(tinstr & 0x0C00) >> 10] // base
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*ainstr = subset[(tinstr & 0xE00) >> 9] // base
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|((tinstr & 0x0007) << (12 - 0)) // Rd
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|((tinstr & 0x0038) << (16 - 3)) // Rb
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|((tinstr & 0x01C0) >> 6); // Ro
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