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stack parameters gp routine!

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This commit is contained in:
Edward R. Gonzalez
2025-08-03 23:27:02 -04:00
parent 6e7809848b
commit 3d0d02b86e
3 changed files with 45 additions and 26 deletions
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code/graphics_system/hello_gp_routines.s
+15 -13
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@@ -46,26 +46,28 @@ main:
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
stack_alloc gp_draw_tri_flat__sp_size ; (used for following call)
move rarg_0, reg_io_offset ; (used for following call)
load_imm rarg_1, Color_PS_GoldenPoppy
load_imm rarg_2, 100 * -1 + Display_HalfHeight << gp_b16_Y | -100 + Display_HalfWidth << gp_b16_X :: sw rarg_2, 0 * gp_vec2($sp)
load_imm rarg_2, 20 * -1 + Display_HalfHeight << gp_b16_Y | 20 + Display_HalfWidth << gp_b16_X :: sw rarg_2, 1 * gp_vec2($sp)
load_imm rarg_2, 50 * -1 + Display_HalfHeight << gp_b16_Y | 30 + Display_HalfWidth << gp_b16_X :: sw rarg_2, 2 * gp_vec2($sp)
jump_nlink gp_draw_tri_flat :: nop
; Bonus traingle
load_imm rarg_1, Color_PS_CadmiumRed
load_imm rarg_2, 50 * -1 + Display_HalfHeight << gp_b16_Y | -100 + Display_HalfWidth << gp_b16_X
load_imm rarg_3, 0 * -1 + Display_HalfHeight << gp_b16_Y | 20 + Display_HalfWidth << gp_b16_X
load_imm rstatic_0, -100 * -1 + Display_HalfHeight << gp_b16_Y | 30 + Display_HalfWidth << gp_b16_X
load_imm rarg_1, Color_PS_CadmiumRed
load_imm rarg_2, 50 * -1 + Display_HalfHeight << gp_b16_Y | -100 + Display_HalfWidth << gp_b16_X :: sw rarg_2, 0 * gp_vec2($sp)
load_imm rarg_2, 0 * -1 + Display_HalfHeight << gp_b16_Y | 20 + Display_HalfWidth << gp_b16_X :: sw rarg_2, 1 * gp_vec2($sp)
load_imm rarg_2, -100 * -1 + Display_HalfHeight << gp_b16_Y | 30 + Display_HalfWidth << gp_b16_X :: sw rarg_2, 2 * gp_vec2($sp)
jump_nlink gp_draw_tri_flat :: nop
stack_release gp_draw_tri_flat__sp_size
; 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
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_gouraud :: nop
idle:
jump idle :: nop