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WIP: working towards minimizing C-ABI & PsyQ CRT usage

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ed
2026-08-01 23:11:10 -04:00
parent 09dde54030
commit 43cd4e0344
9 changed files with 580 additions and 425 deletions
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code/hello_joypad/gen/hello_joypad.macs.h
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#ifdef INTELLISENSE_DIRECTIVES
#pragma once
#endif
// Auto-generated by ps1_meta.lua — DO NOT EDIT
// Source: C:\projects\Pikuma\ps1\code\hello_joypad\hello_joypad.tape.c
// Component atoms (MipsAtomComp_(ac_*)) -> macro variants (mac_*)
#ifndef WORD_COUNT
#define WORD_COUNT(name, count) enum { words_##name = (count) };
#endif
#define mac_gcmd_push(cmd, reg_transfer, reg_base, port) \
load_upper_i(reg_transfer, cmd >> 16) \
, or_i_self( reg_transfer, cmd & 0xFFFF) \
, store_word( reg_transfer, reg_base, port)
WORD_COUNT(mac_gcmd_push, 3)
#define mac_put_disp_env(reg_transfer, reg_base, port) \
mac_gcmd_push(gp0_word_draw_area_top_left_origin, reg_transfer, reg_base, port) \
, mac_gcmd_push(gp0_word_draw_area_bottom_right_320x240, reg_transfer, reg_base, port) \
, mac_gcmd_push(gp0_word_set_mask_bit(), reg_transfer, reg_base, port) \
, mac_gcmd_push(gp0_word_draw_area_top_left_origin, reg_transfer, reg_base, port) \
, mac_gcmd_push(gp0_word_draw_area_bottom_right_320x240, reg_transfer, reg_base, port)
WORD_COUNT(mac_put_disp_env, 15)
#define mac_put_draw_env(reg_transfer, reg_base, port) \
mac_gcmd_push(gp0_dr_env_tag, reg_transfer, reg_base, port) /* tag (length=15 << 24, addr=0) — packet header for the DR_ENV sequence. The GPU needs this to recognize the next 15 words as a DR_ENV packet and trigger the isbg auto-clear. */ \
, mac_gcmd_push(gp0_word_draw_mode_drawing_allowed, reg_transfer, reg_base, port) /* code[0] DrawMode (dfe=1, dtd=0, tpage=0) */ \
, mac_gcmd_push(gp0_word_set_texture_window(), reg_transfer, reg_base, port) /* code[1] TextureWindow (tw=(0,0)) */ \
, mac_gcmd_push(enc_gp0_draw_area_tl_word(0, ScreenRes_Y), reg_transfer, reg_base, port) /* code[2] DrawArea top-left (clip.x=0, clip.y=ScreenRes_Y=240) */ \
, mac_gcmd_push(gp0_word_draw_area_bottom_right_320x240, reg_transfer, reg_base, port) /* code[3] DrawArea bottom-right (clip.x+w=320, clip.y+h=480) */ \
, mac_gcmd_push(gp0_word_set_draw_offset(), reg_transfer, reg_base, port) /* code[4] DrawOffset (ofs=(0,0)) — bare-cmd word; the GPU uses the current state machine. */ \
, mac_gcmd_push(gp0_word_dr_env_mask(), reg_transfer, reg_base, port) /* code[5] Mask (dtd=0, dfe=1, isbg=1) — 0xE6 cmd + isbg bit. */ \
, mac_gcmd_push(gp0_word_dr_env_bg_color_cmd(1, 7, 7, 7), reg_transfer, reg_base, port) /* code[6] Initial-bg-color + auto-clear (isbg=1, r=7, g=7, b=7). */ \
, mac_gcmd_push(gp0_word_dr_env_draw_mode(1), reg_transfer, reg_base, port) /* code[7] Re-assert DrawMode with isbg=1 (isbg-flag set; the 0xE1 cmd byte plus isbg only). */ /* code[8..10] Padding (NOP — GPU discards; the DR_ENV requires 16 words total). */ \
, mac_gcmd_push(gp0_word_nop(), reg_transfer, reg_base, port) \
, mac_gcmd_push(gp0_word_nop(), reg_transfer, reg_base, port) \
, mac_gcmd_push(gp0_word_nop(), reg_transfer, reg_base, port) /* code[11..12] TextureWindow bottom-right (tw.x+tw.w=0, tw.y+tw.h=0) — libpsyx emits twice. */ \
, mac_gcmd_push(gp0_word_set_texture_window(), reg_transfer, reg_base, port) \
, mac_gcmd_push(gp0_word_set_texture_window(), reg_transfer, reg_base, port) /* code[13..14] Padding (NOP) — completes the 16-word packet. */ \
, mac_gcmd_push(gp0_word_nop(), reg_transfer, reg_base, port) \
, mac_gcmd_push(gp0_word_nop(), reg_transfer, reg_base, port)
WORD_COUNT(mac_put_draw_env, 48)