| 29 | namespace KittyArm32 |
| 30 | { |
| 31 | EKittyInsnTypeArm32 decodeInsnType(uint32_t instr) |
| 32 | { |
| 33 | if ((instr & 0x0C000000) == 0x00000000) |
| 34 | { |
| 35 | if ((instr & 0x01E00000) == 0x00800000) |
| 36 | return bits(instr, 19, 16) == 15 ? EKittyInsnTypeArm32::ADR : EKittyInsnTypeArm32::ADD; |
| 37 | |
| 38 | if ((instr & 0x01E00000) == 0x00400000) |
| 39 | return bits(instr, 19, 16) == 15 ? EKittyInsnTypeArm32::ADR : EKittyInsnTypeArm32::SUB; |
| 40 | |
| 41 | if ((instr & 0x01E00000) == 0x01A00000) |
| 42 | return EKittyInsnTypeArm32::MOV; |
| 43 | } |
| 44 | |
| 45 | if ((instr & 0x0FF00000) == 0x02800000) |
| 46 | return EKittyInsnTypeArm32::LDR_LITERAL; |
| 47 | |
| 48 | if ((instr & 0x0C500000) == 0x04100000) |
| 49 | return bits(instr, 19, 16) == 15 ? EKittyInsnTypeArm32::LDR_LITERAL : EKittyInsnTypeArm32::LDR; |
| 50 | |
| 51 | if ((instr & 0x0C500000) == 0x04000000) |
| 52 | return EKittyInsnTypeArm32::STR; |
| 53 | |
| 54 | if ((instr & 0x0C500000) == 0x04500000) |
| 55 | return bits(instr, 19, 16) == 15 ? EKittyInsnTypeArm32::LDR_LITERAL : EKittyInsnTypeArm32::LDRB; |
| 56 | |
| 57 | if ((instr & 0x0C500000) == 0x04400000) |
| 58 | return EKittyInsnTypeArm32::STRB; |
| 59 | |
| 60 | if ((instr & 0x0F1000F0) == 0x011000B0) |
| 61 | return EKittyInsnTypeArm32::LDRH; |
| 62 | |
| 63 | if ((instr & 0x0F1000F0) == 0x010000B0) |
| 64 | return EKittyInsnTypeArm32::STRH; |
| 65 | |
| 66 | if ((instr & 0x0F1000F0) == 0x011000D0) |
| 67 | return EKittyInsnTypeArm32::LDRSB; |
| 68 | |
| 69 | if ((instr & 0x0F1000F0) == 0x011000F0) |
| 70 | return EKittyInsnTypeArm32::LDRSH; |
| 71 | |
| 72 | if ((instr & 0x0F000000) == 0x0A000000) |
| 73 | return bits(instr, 31, 28) == 0xE ? EKittyInsnTypeArm32::B : EKittyInsnTypeArm32::B_COND; |
| 74 | |
| 75 | if ((instr & 0x0F000000) == 0x0B000000) |
| 76 | return EKittyInsnTypeArm32::BL; |
| 77 | |
| 78 | return EKittyInsnTypeArm32::UNKNOWN; |
| 79 | } |
| 80 | |
| 81 | KittyInsnArm32 decodeInsn(uint32_t instr, uint32_t address) |
| 82 | { |