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hello gp routines

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This commit is contained in:
Edward R. Gonzalez
2025-08-03 22:01:36 -04:00
parent 0a47b03dfa
commit 6e7809848b
6 changed files with 135 additions and 91 deletions
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code/graphics_system/hello_gp_routines.s
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.psx
.create "./build/hello_gp_routines.bin", 0x80010000
.include "./code/graphics_system/dsl.s"
.include "./code/graphics_system/gp.s"
; Entry Point of Code
.org 0x80010000
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 320
Display_Height equ 239
Display_HalfWidth equ 320 / 2
Display_HalfHeight equ 240 / 2
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_320x240_15bit_NTSC
gcmd_push gp1, rtmp_1, gp_HorizontalDisplayRange_3168_608
gcmd_push gp1, rtmp_1, gp_VerticalDisplayRange_264_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
gcmd_push gp0, rtmp_1, gp_RectFillVM | Color_22
gcmd_push gp0, rtmp_1, 0 << gp_b16_Y | 0 << gp_b16_X
gcmd_push gp0, rtmp_1, Display_Height << gp_b16_Y | Display_Width << gp_b16_X
; Draw a flat-shaded quad
gcmd_push gp0, rtmp_1, gp_Quad | Color_PS_CelticBlue
gcmd_push gp0, rtmp_1, 15 * -1 + Display_HalfHeight << gp_b16_Y | 0 + Display_HalfWidth << gp_b16_X
gcmd_push gp0, rtmp_1, 24 * -1 + Display_HalfHeight << gp_b16_Y | 100 + Display_HalfWidth << gp_b16_X
gcmd_push gp0, rtmp_1, -30 * -1 + Display_HalfHeight << gp_b16_Y | -100 + Display_HalfWidth << gp_b16_X
gcmd_push gp0, rtmp_1, -50 * -1 + Display_HalfHeight << gp_b16_Y | 55 + Display_HalfWidth << gp_b16_X
; Draw a flat-shaded triangle
move rarg_0, reg_io_offset ; arg 1 for gp_draw_tri_flat
load_imm rarg_1, Color_PS_GoldenPoppy
load_imm rarg_2, 100 * -1 + Display_HalfHeight << gp_b16_Y | -100 + Display_HalfWidth << gp_b16_X
load_imm rarg_3, 20 * -1 + Display_HalfHeight << gp_b16_Y | 20 + Display_HalfWidth << gp_b16_X
load_imm rstatic_0, 50 * -1 + Display_HalfHeight << gp_b16_Y | 30 + Display_HalfWidth << gp_b16_X
jump_nlink gp_draw_tri_flat :: nop
; Bonus traingle
load_imm rarg_1, Color_PS_CadmiumRed
load_imm rarg_2, 50 * -1 + Display_HalfHeight << gp_b16_Y | -100 + Display_HalfWidth << gp_b16_X
load_imm rarg_3, 0 * -1 + Display_HalfHeight << gp_b16_Y | 20 + Display_HalfWidth << gp_b16_X
load_imm rstatic_0, -100 * -1 + Display_HalfHeight << gp_b16_Y | 30 + Display_HalfWidth << gp_b16_X
jump_nlink gp_draw_tri_flat :: nop
; Gourand shaded triangle
load_imm rarg_1, Color_PS_PersianGreen
load_imm rstatic_1, Color_PS_GoldenPoppy
load_imm rstatic_2, Color_PS_CadmiumRed
load_imm rarg_2, -35 * -1 + Display_HalfHeight << gp_b16_Y | 145 + Display_HalfWidth << gp_b16_X
load_imm rarg_3, 0 * -1 + Display_HalfHeight << gp_b16_Y | 50 + Display_HalfWidth << gp_b16_X
load_imm rstatic_0, 40 * -1 + Display_HalfHeight << gp_b16_Y | 60 + Display_HalfWidth << gp_b16_X
jump_nlink gp_draw_tri_grouand :: nop
idle:
jump idle :: nop
.close