| 1 | // |
| 2 | // GPU.H: Header file |
| 3 | // |
| 4 | |
| 5 | #ifndef __GPU_H__ |
| 6 | #define __GPU_H__ |
| 7 | |
| 8 | //#include "types.h" |
| 9 | #include "memory.h" |
| 10 | |
| 11 | #define GPU_CONTROL_RAM_BASE 0x00F02100 |
| 12 | #define GPU_WORK_RAM_BASE 0x00F03000 |
| 13 | |
| 14 | void GPUInit(void); |
| 15 | void GPUReset(void); |
| 16 | void GPUExec(int32_t); |
| 17 | void GPUDone(void); |
| 18 | void GPUUpdateRegisterBanks(void); |
| 19 | void GPUHandleIRQs(void); |
| 20 | void GPUSetIRQLine(int irqline, int state); |
| 21 | |
| 22 | uint8_t GPUReadByte(uint32_t offset, uint32_t who = UNKNOWN); |
| 23 | uint16_t GPUReadWord(uint32_t offset, uint32_t who = UNKNOWN); |
| 24 | uint32_t GPUReadLong(uint32_t offset, uint32_t who = UNKNOWN); |
| 25 | void GPUWriteByte(uint32_t offset, uint8_t data, uint32_t who = UNKNOWN); |
| 26 | void GPUWriteWord(uint32_t offset, uint16_t data, uint32_t who = UNKNOWN); |
| 27 | void GPUWriteLong(uint32_t offset, uint32_t data, uint32_t who = UNKNOWN); |
| 28 | |
| 29 | uint32_t GPUGetPC(void); |
| 30 | void GPUReleaseTimeslice(void); |
| 31 | void GPUResetStats(void); |
| 32 | uint32_t GPUReadPC(void); |
| 33 | bool GPUIsRunning(void); |
| 34 | |
| 35 | // GPU interrupt numbers (from $F00100, bits 4-8) |
| 36 | |
| 37 | enum { GPUIRQ_CPU = 0, GPUIRQ_DSP, GPUIRQ_TIMER, GPUIRQ_OBJECT, GPUIRQ_BLITTER }; |
| 38 | |
| 39 | // Exported vars |
| 40 | |
| 41 | extern uint32_t gpu_reg_bank_0[], gpu_reg_bank_1[]; |
| 42 | |
| 43 | #endif // __GPU_H__ |