mirror of
https://github.com/Ed94/pikuma_ps1.git
synced 2026-06-01 18:41:13 -07:00
ed
48b8a68d9e
For some reason the resolution on duckstation is 640x464. Does not run in pcsx-redux, known issue based on the discussions
69 lines
2.4 KiB
ArmAsm
69 lines
2.4 KiB
ArmAsm
.psx
|
|
.create "./build/hello_logo.bin", 0x80010000
|
|
|
|
.include "./code/graphics_system/dsl.s"
|
|
.include "./code/graphics_system/gp.s"
|
|
|
|
Color_RedFF equ 0x0000FF
|
|
Color_22 equ 0x222222
|
|
Color_PS_CadmiumRed equ 0x2400DF
|
|
Color_PS_CelticBlue equ 0x723F00
|
|
Color_PS_GoldenPoppy equ 0x00C3F3
|
|
Color_PS_PersianGreen equ 0x9FAC00
|
|
|
|
Display_Width equ (640)
|
|
Display_Height equ (480)
|
|
Display_HalfWidth equ Display_Width / 2
|
|
Display_HalfHeight equ Display_Height / 2
|
|
|
|
// TODO(Ed): Figure out an auto-region?
|
|
.org 0x80010000 + 4000
|
|
|
|
Image_SizeX equ 640 * 3 / 2 ; 24bbp needs 1.5x
|
|
Image_SizeY equ 480
|
|
Image_ByteSize equ Image_SizeX * Image_SizeY * gp_pixel24
|
|
Image:
|
|
.incbin "./assets/logo.bin"
|
|
|
|
; Entry Point of Code
|
|
.org 0x80010000
|
|
main:
|
|
reg_io_offset equ rtmp_0
|
|
load_uimm rtmp_0, IO_BASE_ADDR
|
|
|
|
gp0 equ gpio_port0(reg_io_offset)
|
|
gp1 equ gpio_port1(reg_io_offset)
|
|
|
|
; Setup Display Control
|
|
gcmd_push gp1, rtmp_1, gp_Reset
|
|
gcmd_push gp1, rtmp_1, gp_DisplayEnabled
|
|
gcmd_push gp1, rtmp_1, gp_DisplayMode | gp_Disp_Color15 | gp_Disp_VInterlace | gp_Disp_VRes_480 | gp_Disp_HRes_640
|
|
// gcmd_push gp1, rtmp_1, gp_DisplayMode_320x240_15bit_NTSC
|
|
// gcmd_push gp1, rtmp_1, gp_DisplayMode_640x480_24bbp_NTSC
|
|
gcmd_push gp1, rtmp_1, gp_HorizontalDisplayRange_3168_608
|
|
gcmd_push gp1, rtmp_1, gp_VerticalDisplayRange_504_24
|
|
gcmd_push gp0, rtmp_1, gp_ModeSetting_DipArea
|
|
gcmd_push gp0, rtmp_1, gp_SetArea_TopLeft | 0 << gp_b10_Y | 0 << gp_b10_X
|
|
gcmd_push gp0, rtmp_1, gp_SetArea_BottomRight | Display_Height << gp_b10_Y | Display_Width << gp_b10_X
|
|
gcmd_push gp0, rtmp_1, gp_SetOffset | 0 << gp_b10_Y | 0 << gp_b10_X
|
|
|
|
; Copy image contents to vram
|
|
gcmd_push gp0, rtmp_1, gp_Blit_CPU_VM
|
|
gcmd_push gp0, rtmp_1, 0 << gp_b16_Y | 0 << gp_b16_X ; Top Left
|
|
gcmd_push gp0, rtmp_1, Image_SizeY << gp_b16_Y | Image_SizeX << gp_b16_X ; Bottom Right
|
|
; DMA commands
|
|
@id equ rtmp_2
|
|
@img_cursor equ rtmp_3
|
|
load_imm @id, Image_ByteSize
|
|
shift_rl @id, @id, (word / 2)
|
|
load_addr @img_cursor, Image
|
|
loop_dma:
|
|
load_word rtmp_1, (@img_cursor) :: nop :: store_word rtmp_1, gp0 ; @img_curor -> gp_dma_cpu_vm(word)
|
|
add_si @img_cursor, @img_cursor, word ; @img_cursor ++
|
|
add_ui @id, @id, -1 :: branch_ne_zero @id, loop_dma :: nop ; @id -- :: if != @id, 0 goto loop_dma
|
|
|
|
idle:
|
|
jump idle :: nop
|
|
|
|
.close
|