diff options
Diffstat (limited to 'libpsn00b/psxgpu/loadimage.s')
| -rw-r--r-- | libpsn00b/psxgpu/loadimage.s | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/libpsn00b/psxgpu/loadimage.s b/libpsn00b/psxgpu/loadimage.s deleted file mode 100644 index 45f152f..0000000 --- a/libpsn00b/psxgpu/loadimage.s +++ /dev/null @@ -1,70 +0,0 @@ -.set noreorder - -.include "hwregs_a.h" - -.set RECT_x, 0 -.set RECT_y, 2 -.set RECT_w, 4 -.set RECT_h, 6 - -.section .text - - -.global LoadImage -.type LoadImage, @function -LoadImage: - addiu $sp, -8 - sw $ra, 0($sp) - sw $s0, 4($sp) - - lui $s0, IOBASE # Set I/O segment base address - -.Lgpu_wait: # Wait for GPU to be ready for commands and DMA - jal ReadGPUstat - nop - srl $v0, 0x1a - andi $v0, 0x5 - li $v1, 5 - #srl $v0, 28 - #andi $v0, 1 - bne $v0, $v1, .Lgpu_wait - nop - - lui $v0, 0x400 # Set DMA direction to off - sw $v0, GPU_GP1($s0) - - lui $v0, 0x0100 # Clear GPU cache - sw $v0, GPU_GP0($s0) - - lui $v1, 0xa000 # Load image to VRAM - sw $v1, GPU_GP0($s0) - lw $v0, RECT_x($a0) # Set XY and dimensions of image - lw $v1, RECT_w($a0) - sw $v0, GPU_GP0($s0) - sw $v1, GPU_GP0($s0) - - lui $v0, 0x400 # Set DMA direction to CPUtoVRAM - ori $v0, 0x2 - sw $v0, GPU_GP1($s0) - - lhu $v0, RECT_w($a0) # Get rectangle size - lhu $v1, RECT_h($a0) - nop - mult $v0, $v1 # Calculate BCR value - mflo $v1 - srl $v1, 0x4 - sll $v1, 0x10 - ori $v1, 0x8 - - sw $a1, DMA2_MADR($s0) # Set DMA base address and transfer length - sw $v1, DMA2_BCR($s0) - - lui $v0, 0x100 # Start DMA transfer - ori $v0, 0x201 - sw $v0, DMA2_CHCR($s0) - - lw $ra, 0($sp) - lw $s0, 4($sp) - jr $ra - addiu $sp, 8 - |