ed/pikuma_ps1
1
0
Fork 0
mirror of https://github.com/Ed94/pikuma_ps1.git synced 2026-08-14 11:38:14 +00:00
Code Issues Packages Projects Releases Wiki Activity

intiial review on: resolve_look_at__input_and_sub_proc

Browse Source
This commit is contained in:
ed
2026-08-13 19:42:43 -04:00
parent 640dab7e61
commit b699b47b28
7 changed files with 82 additions and 104 deletions
Download Patch File Download Diff File Expand all files Collapse all files
code/duffle/mips.h
+26 -26
View File
@@ -136,31 +136,31 @@ enum {
/* Semantic Aliases for MIPS Registers (O32 ABI) */
, rdiscard = R_0 /* Hardwired to 0 */
, rasm_tmp = R_AT /* Assembler temporary (destroyed by some assembler pseudoinstructions!) */
, rret_0 = R_V0 /* Function return value */
, rret_1 = R_V1 /* Second return value (e.g., 64-bit) */
, rarg_0 = R_A0 /* First function argument */
, rarg_1 = R_A1 /* Second function argument */
, rarg_2 = R_A2 /* Third function argument */
, rarg_3 = R_A3 /* Fourth function argument */
, rtmp_0 = R_T0 /* Temporary (Caller saved) */
, rtmp_1 = R_T1 /* Temporary (Caller saved) */
, rtmp_2 = R_T2 /* Temporary (Caller saved) */
, rtmp_3 = R_T3 /* Temporary (Caller saved) */
, rtmp_4 = R_T4 /* Temporary (Caller saved) — common GTE base pointer */
, rtmp_9 = R_T9 /* Temporary (Caller saved) — common GTE base pointer */
, rstatic_0 = R_S0 /* Static (Callee saved, preserved across calls) */
, rstatic_1 = R_S1
, rstatic_2 = R_S2
, rstatic_3 = R_S3
, rstatic_4 = R_S4
, rstatic_5 = R_S5
, rstatic_6 = R_S6
, rstatic_7 = R_S7
, rsaved_0 = R_S0 /* Alias for rstatic_0 (alternate vocabulary) */
, rstack_ptr = R_SP /* Stack Pointer */
, rret_addr = R_RA /* Return Address (populated by JAL) */
// , rdiscard = R_0 /* Hardwired to 0 */
// , rasm_tmp = R_AT /* Assembler temporary (destroyed by some assembler pseudoinstructions!) */
// , rret_0 = R_V0 /* Function return value */
// , rret_1 = R_V1 /* Second return value (e.g., 64-bit) */
// , rarg_0 = R_A0 /* First function argument */
// , rarg_1 = R_A1 /* Second function argument */
// , rarg_2 = R_A2 /* Third function argument */
// , rarg_3 = R_A3 /* Fourth function argument */
// , rtmp_0 = R_T0 /* Temporary (Caller saved) */
// , rtmp_1 = R_T1 /* Temporary (Caller saved) */
// , rtmp_2 = R_T2 /* Temporary (Caller saved) */
// , rtmp_3 = R_T3 /* Temporary (Caller saved) */
// , rtmp_4 = R_T4 /* Temporary (Caller saved) — common GTE base pointer */
// , rtmp_9 = R_T9 /* Temporary (Caller saved) — common GTE base pointer */
// , rstatic_0 = R_S0 /* Static (Callee saved, preserved across calls) */
// , rstatic_1 = R_S1
// , rstatic_2 = R_S2
// , rstatic_3 = R_S3
// , rstatic_4 = R_S4
// , rstatic_5 = R_S5
// , rstatic_6 = R_S6
// , rstatic_7 = R_S7
// , rsaved_0 = R_S0 /* Alias for rstatic_0 (alternate vocabulary) */
// , rstack_ptr = R_SP /* Stack Pointer */
// , rret_addr = R_RA /* Return Address (populated by JAL) */
/* --- MIPS CPU Opcodes (Bits 31-26) --- */
@@ -453,7 +453,7 @@ enum { _BitOffsets = 0
#define shift_amount(rd, rt, n) shift_lleft(rd, rt, n)
/* nop — sll $0, $0, 0 */
#define nop shift_lleft(rdiscard, rdiscard, 0)
#define nop shift_lleft(R_0, R_0, 0)
#define nop2 nop, nop
// li_s — load signed 16-bit immediate into GPR (addiu rt, $0, imm — sign-extends).