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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/gp.s
+15 -13
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@@ -119,6 +119,8 @@ gp_b10_Y equ 10
gp_b16_X equ 0
gp_b16_Y equ 16
gp_vec2 equ word
.macro gp_push_pak, port, reg_scratch, packet
load_imm reg_scratch, packet
store_word reg_scratch, port
@@ -131,23 +133,23 @@ gp_b16_Y equ 16
.org 0x80010000 + 2000
.func gp_draw_tri_flat ;(
@@io_offset equ rarg_0
@@color equ rarg_1
@@vert_1 equ rarg_2
@@vert_2 equ rarg_3
@@vert_3 equ rstatic_0
gp_draw_tri_flat__sp_size equ (3 * gp_vec2)
@@io_offset equ rarg_0 ; io_offset: word
@@color equ rarg_1 ; color: word
@@verts equ $sp ; verts: [3]gp_vec2
;)
@@cmd equ rtmp_2
load_imm @@cmd, gp_Polygon
or @@cmd, @@cmd, @@color
store_word @@cmd, gpio_port0(@@io_offset)
store_word @@vert_1, gpio_port0(@@io_offset)
store_word @@vert_2, gpio_port0(@@io_offset)
store_word @@vert_3, gpio_port0(@@io_offset)
@@vert_id equ rtmp_1
@@cmd equ rtmp_2
load_imm @@cmd, gp_Polygon
or @@cmd, @@cmd, @@color
store_word @@cmd, gpio_port0(@@io_offset)
load_word @@vert_id, 0 * gp_vec2(@@verts) :: nop :: store_word @@vert_id, gpio_port0(@@io_offset)
load_word @@vert_id, 1 * gp_vec2(@@verts) :: nop :: store_word @@vert_id, gpio_port0(@@io_offset)
load_word @@vert_id, 2 * gp_vec2(@@verts) :: nop :: store_word @@vert_id, gpio_port0(@@io_offset)
jump_reg rret_addr :: nop
.endfunc
.func gp_draw_tri_grouand ;(
.func gp_draw_tri_gouraud ;(
@@io_offset equ rarg_0
@@color equ rarg_1
@@color_2 equ rstatic_1