ed/pikuma_ps1
1
0
Fork 0
mirror of https://github.com/Ed94/pikuma_ps1.git synced 2026-08-01 20:28:18 +00:00
Code Issues Packages Projects Releases Wiki Activity

WIP: trying to see if I can get this tape execution working

Browse Source
This commit is contained in:
ed
2026-06-14 18:38:38 -04:00
parent 2c3d0c4af7
commit 1b77d8bae3
4 changed files with 205 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files
code/duffle/gte.h
+8 -2
View File
@@ -271,8 +271,14 @@ enum { _C2_OPS_ = 0
* - rd: COP2 control register index (0..31) */
#define enc_gte_tx(sub, rt, rd) (enc_op(op_cop2) | enc_rs(sub) | enc_rt(rt) | enc_rd(rd))
#define gte_mt(rt, rd) enc_gte_tx(cop_mt, (rt), (rd)) /* Move GPR (rt) to GTE Control Register (rd) */
#define gte_mf(rt, rd) enc_gte_tx(cop_mf, (rt), (rd)) /* Move GTE Control Register (rd) to GPR (rt) */
// #define gte_mt(rt, rd) enc_gte_tx(cop_mt, (rt), (rd)) /* Move GPR (rt) to GTE Control Register (rd) */
// #define gte_mf(rt, rd) enc_gte_tx(cop_mf, (rt), (rd)) /* Move GTE Control Register (rd) to GPR (rt) */
/* Explicit GTE Data vs Control Register Transfers */
#define gte_mf(rt, rd) enc_gte_tx(0x00, (rt), (rd)) /* Move from GTE Data Reg (e.g. MAC0, OTZ) */
#define gte_cf(rt, rd) enc_gte_tx(0x02, (rt), (rd)) /* Move from GTE Control Reg */
#define gte_mt(rt, rd) enc_gte_tx(0x04, (rt), (rd)) /* Move to GTE Data Reg (e.g. VXY0) */
#define gte_ct(rt, rd) enc_gte_tx(0x06, (rt), (rd)) /* Move to GTE Control Reg (e.g. Matrices) */
/* COP2 Data Load (lwc2): `lwc2 rt, off(rs)`
* Layout: [op_lwc2:6][rs:5][rt:5][imm:16]