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bsnes/processor/arm/instructions-arm.hpp

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Update to v087r05 release. byuu says: Implemented all of the ARMv3 instructions, and the bx rm instruction as well. Already hit THUMB mode right at the start of the BIOS, sigh. Implemented the first THUMB instruction to get that rolling. Also tried to support the S flag to LDM/STM, but not sure how successful I was.
2012-03-21 11:08:16 +00:00
void arm_step();
void arm_opcode(uint32 rm);
Update to v087r08 release. byuu says: Added some more ARM opcodes, hooked up MMIO. Bind it with mmio[(addr 000-3ff)] = this; inside CPU/PPU/APU, goes to read(), write(). Also moved the Hitachi HG51B core to processor/, and split it apart from the snes/chip/hitachidsp implementation. This one actually worked really well. Very clean split between MMIO/DMA and the processor core. I may move a more generic DMA function inside the core, not sure yet. I still believe the HG51B169 to be a variant of the HG51BS family, but given they're meant to be incredibly flexible microcontrollers, it's possible that each variant gets its own instruction set. So, who knows. We'll worry about it if we ever find another HG51B DSP, I guess. GBA BIOS is constantly reading from 04000300, but it never writes. If I return prng()&1, I can get it to proceed until it hits a bad opcode (stc opcode, which the GBA lacks a coprocessor so ... bad codepath.) Without it, it just reads that register forever and keeps resetting the system, or something ... I guess we're going to have to try and get ARMwrestler working, because the BIOS seems to need too much emulation code to do anything at all.
2012-03-24 07:52:36 +00:00
void arm_move_to_status(uint32 rm);
Update to v087r05 release. byuu says: Implemented all of the ARMv3 instructions, and the bx rm instruction as well. Already hit THUMB mode right at the start of the BIOS, sigh. Implemented the first THUMB instruction to get that rolling. Also tried to support the S flag to LDM/STM, but not sure how successful I was.
2012-03-21 11:08:16 +00:00
void arm_op_multiply();
Update to v087r12 release. byuu says: Enough to get through the BIOS and into cartridge ROM. I am a bit annoyed that I was basically told that the GBA PPU wasn't that bad. Sprites are a clusterfuck, easily worse than Mode7, docs don't even begin to explain them in enough detail. This is going to be fun.
2012-03-31 08:14:31 +00:00
void arm_op_multiply_long();
Update to v087r08 release. byuu says: Added some more ARM opcodes, hooked up MMIO. Bind it with mmio[(addr 000-3ff)] = this; inside CPU/PPU/APU, goes to read(), write(). Also moved the Hitachi HG51B core to processor/, and split it apart from the snes/chip/hitachidsp implementation. This one actually worked really well. Very clean split between MMIO/DMA and the processor core. I may move a more generic DMA function inside the core, not sure yet. I still believe the HG51B169 to be a variant of the HG51BS family, but given they're meant to be incredibly flexible microcontrollers, it's possible that each variant gets its own instruction set. So, who knows. We'll worry about it if we ever find another HG51B DSP, I guess. GBA BIOS is constantly reading from 04000300, but it never writes. If I return prng()&1, I can get it to proceed until it hits a bad opcode (stc opcode, which the GBA lacks a coprocessor so ... bad codepath.) Without it, it just reads that register forever and keeps resetting the system, or something ... I guess we're going to have to try and get ARMwrestler working, because the BIOS seems to need too much emulation code to do anything at all.
2012-03-24 07:52:36 +00:00
void arm_op_memory_swap();
Update to v087r10 release. byuu says: Changelog: - fixed THUMB hi immediate reads (immediate * 4) - cartridge is properly mirrored to 32MB (eg 12mbit repeats as lo8+hi4+hi4+lo8+hi4+hi4) [so it's a bit slower than a standard memcpy fill] - added ARM - load/store halfword register offset - added ARM - load/store halfword immediate offset - added ARM - load signed halfword/byte register offset - added ARM - load signed halfword/byte immediate offset - added decode() function to make opcode bit testing a lot clearer (didn't apply it to the debugger yet) All ARMv4M and all THUMBv4 instructions should now be implemented. Although I'm not sure if my implementations of the new instructions are correct.
2012-03-27 11:02:57 +00:00
void arm_op_move_half_register();
void arm_op_move_half_immediate();
void arm_op_load_register();
void arm_op_load_immediate();
void arm_op_move_to_register_from_status();
Update to v087r05 release. byuu says: Implemented all of the ARMv3 instructions, and the bx rm instruction as well. Already hit THUMB mode right at the start of the BIOS, sigh. Implemented the first THUMB instruction to get that rolling. Also tried to support the S flag to LDM/STM, but not sure how successful I was.
2012-03-21 11:08:16 +00:00
void arm_op_move_to_status_from_register();
void arm_op_branch_exchange_register();
Update to v087r10 release. byuu says: Changelog: - fixed THUMB hi immediate reads (immediate * 4) - cartridge is properly mirrored to 32MB (eg 12mbit repeats as lo8+hi4+hi4+lo8+hi4+hi4) [so it's a bit slower than a standard memcpy fill] - added ARM - load/store halfword register offset - added ARM - load/store halfword immediate offset - added ARM - load signed halfword/byte register offset - added ARM - load signed halfword/byte immediate offset - added decode() function to make opcode bit testing a lot clearer (didn't apply it to the debugger yet) All ARMv4M and all THUMBv4 instructions should now be implemented. Although I'm not sure if my implementations of the new instructions are correct.
2012-03-27 11:02:57 +00:00
Update to v087r08 release. byuu says: Added some more ARM opcodes, hooked up MMIO. Bind it with mmio[(addr 000-3ff)] = this; inside CPU/PPU/APU, goes to read(), write(). Also moved the Hitachi HG51B core to processor/, and split it apart from the snes/chip/hitachidsp implementation. This one actually worked really well. Very clean split between MMIO/DMA and the processor core. I may move a more generic DMA function inside the core, not sure yet. I still believe the HG51B169 to be a variant of the HG51BS family, but given they're meant to be incredibly flexible microcontrollers, it's possible that each variant gets its own instruction set. So, who knows. We'll worry about it if we ever find another HG51B DSP, I guess. GBA BIOS is constantly reading from 04000300, but it never writes. If I return prng()&1, I can get it to proceed until it hits a bad opcode (stc opcode, which the GBA lacks a coprocessor so ... bad codepath.) Without it, it just reads that register forever and keeps resetting the system, or something ... I guess we're going to have to try and get ARMwrestler working, because the BIOS seems to need too much emulation code to do anything at all.
2012-03-24 07:52:36 +00:00
void arm_op_move_to_status_from_immediate();
Update to v087r05 release. byuu says: Implemented all of the ARMv3 instructions, and the bx rm instruction as well. Already hit THUMB mode right at the start of the BIOS, sigh. Implemented the first THUMB instruction to get that rolling. Also tried to support the S flag to LDM/STM, but not sure how successful I was.
2012-03-21 11:08:16 +00:00
void arm_op_data_immediate_shift();
void arm_op_data_register_shift();
void arm_op_data_immediate();
void arm_op_move_immediate_offset();
void arm_op_move_register_offset();
void arm_op_move_multiple();
void arm_op_branch();
Update to v087r08 release. byuu says: Added some more ARM opcodes, hooked up MMIO. Bind it with mmio[(addr 000-3ff)] = this; inside CPU/PPU/APU, goes to read(), write(). Also moved the Hitachi HG51B core to processor/, and split it apart from the snes/chip/hitachidsp implementation. This one actually worked really well. Very clean split between MMIO/DMA and the processor core. I may move a more generic DMA function inside the core, not sure yet. I still believe the HG51B169 to be a variant of the HG51BS family, but given they're meant to be incredibly flexible microcontrollers, it's possible that each variant gets its own instruction set. So, who knows. We'll worry about it if we ever find another HG51B DSP, I guess. GBA BIOS is constantly reading from 04000300, but it never writes. If I return prng()&1, I can get it to proceed until it hits a bad opcode (stc opcode, which the GBA lacks a coprocessor so ... bad codepath.) Without it, it just reads that register forever and keeps resetting the system, or something ... I guess we're going to have to try and get ARMwrestler working, because the BIOS seems to need too much emulation code to do anything at all.
2012-03-24 07:52:36 +00:00
void arm_op_software_interrupt();