ed/pikuma_ps1
1
0
Fork 0
mirror of https://github.com/Ed94/pikuma_ps1.git synced 2026-08-25 02:20:33 +00:00
Code Issues Packages Projects Releases Wiki Activity

reviewing

Browse Source
This commit is contained in:
ed
2026-08-22 21:03:57 -04:00
parent a37ffe6f58
commit 52888015de
15 changed files with 43 additions and 108 deletions
Download Patch File Download Diff File Expand all files Collapse all files
code/duffle/gte.h
+1 -26
View File
@@ -1,21 +1,10 @@
/* ============================================================================
* duffle DSL Suffix Conventions
* ============================================================================
*
* Every mnemonic in this header follows the same suffix grammar:
*
* Primitive commands: gp0_cmd_poly_f3 = 0x20 (byte opcode)
* Packed 32-bit cmd: gp0_word_poly_f3(r, g, b) (32-bit, shifted)
*
* Type ordering: domain?_(direction)?_action_target_modifier_type?
* Examples: add_ui (add + unsigned + immediate)
* add_s (add + signed, R-type implicit)
* shift_lleft (shift + logical + left)
* shift_aright (shift + arithmetic + right)
* call_reg(rs) (call + register, $ra implicit)
* gte_mv_to_data_r (gte + mv + to + data + register)
* gte_lw_v0_xy(base) (gte + lw + v0 + xy)
* load_upper_i (load-upper + immediate, unique verb)
* ============================================================================ */
#ifdef INTELLISENSE_DIRECTIVES
@@ -29,21 +18,7 @@
/* ============================================================================
* gte.h — Geometry Transformation Engine (COP2) for the PS1
* ============================================================================
*
* Hand-rolled DSL for emitting GTE/MIPS instruction words from C.
* No GCC inline-assembly string syntax in the code body.
*
* STYLE NOTES
* -----------
* - Per-field encoders are named `enc_gte_<field>(value)` and each one self-masks its argument before shifting.
* Mirrors the `enc_op / enc_rs / enc_rt / ...` family in mips.h.
* - The composite `enc_gte_cmdw(sf, mx, v, cv, lm, cmd)` is a flat OR of the per-field encoders, plus the COP2/CO base.
* - Pre-baked shortcuts (`gte_cmd_rtpt`, `gte_cmd_rtps`, …) are defined for the common cases so call sites read like assembly source.
* - All register/field values are enums (not `#define`s) so they show up in debugger symbol tables and IDE autocomplete.
*
* SEE ALSO
* --------
* - mips.h: The MIPS encoder layer this builds on.
* DSL for emitting GTE/MIPS instruction words from C.
*/
/* C2 data registers */