src/gpu.h

   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__