Line 70: |
Line 70: |
| * Type3: The emulator passes the 0x8-bytes from InBuffer+0 as the input Struct32, however the plugin doesn't use the Struct32. The emulator passes InBuffer_size=0x8C00048 and OutBuffer_size=0x2900008. This generates code for the MIPS code specified in the InBuffer. The InBuffer contains array data etc. The InBuffer can contain multiple blocks of code, which are generally individual MIPS functions. The MIPS instructions are big-endian. | | * Type3: The emulator passes the 0x8-bytes from InBuffer+0 as the input Struct32, however the plugin doesn't use the Struct32. The emulator passes InBuffer_size=0x8C00048 and OutBuffer_size=0x2900008. This generates code for the MIPS code specified in the InBuffer. The InBuffer contains array data etc. The InBuffer can contain multiple blocks of code, which are generally individual MIPS functions. The MIPS instructions are big-endian. |
| * Type4: 0x20-bytes are passed for the input Struct32: u32 +0 = emu_pc_addr, u32 +4 = set by emulator but unused by the plugin, u32 +0x18 = instruction_count (which determines the InBuffer size), the rest is unused / overwritten by the plugin. This generates code for the MIPS code specified in the InBuffer. InBuffer+0 is the u32s for the big-endian MIPS instructions. The OutBuffer is 0x2000C-bytes: | | * Type4: 0x20-bytes are passed for the input Struct32: u32 +0 = emu_pc_addr, u32 +4 = set by emulator but unused by the plugin, u32 +0x18 = instruction_count (which determines the InBuffer size), the rest is unused / overwritten by the plugin. This generates code for the MIPS code specified in the InBuffer. InBuffer+0 is the u32s for the big-endian MIPS instructions. The OutBuffer is 0x2000C-bytes: |
− | ** +0x0 is an array of u32s with the count from u32 +0x20004. | + | ** +0x0 is an array of u32s with the count from u32 +0x20004. Each entry is the generated-code offset for each compiled MIPS instruction, relative to the CodeRange offset. |
− | ** +0x10000 is an array of u32s with the count from u32 +0x20004. | + | ** +0x10000 is an array of u32s with the count from u32 +0x20004. Each entry is flags for each compiled MIPS instruction. |
− | ** The 3 u32s at +0x20000 are the same as OutBuffer+0x0 with type1/type2 (except the last two fields can be non-zero). | + | ** The 3 u32s at +0x20000 are the same as OutBuffer+0x0 with type1/type2 (except the last two fields can be non-zero). +0x20004 is the total compiled MIPS instructions. +0x20008 is emu_pc_addr for the first compiled instruction. |
| | | |
| 0xC-bytes are copied to the OutBuffer with type1/type2, these come from workmem. These 3 u32s are left at all-zero, except for +0 which is the generated_code_size (which is then copied to the output CodeRange size). | | 0xC-bytes are copied to the OutBuffer with type1/type2, these come from workmem. These 3 u32s are left at all-zero, except for +0 which is the generated_code_size (which is then copied to the output CodeRange size). |