mirror of
https://github.com/Ed94/pikuma_ps1.git
synced 2026-08-05 07:08:49 +00:00
Made the atom offset/label metaprogram! Still need to support more than one branch per-atom.
This commit is contained in:
@@ -67,8 +67,8 @@
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*
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* asm volatile("nop" : : : reg_str(R_RA), "memory"); // clobber list */
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#define rlit_stringfy(n) "$" stringify(n)
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#define rlit_tmpl(n) rlit_stringfy(tmpl(n,Code))
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#define rlit(n) rlit_tmpl(n)
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#define rlit_tmpl(n) rlit_stringfy(tmpl(n,Code))
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#define rlit(n) rlit_tmpl(n)
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/* ------------------------------------------------------------------------ *
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* rgcc(n) — GCC-specific bundle for register-variable declarations.
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@@ -0,0 +1,50 @@
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// Auto-generated by gen_atom_offsets.lua — DO NOT EDIT
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// Source: C:\projects\Pikuma\ps1\code\duffle\lottes_tape.h
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#ifndef LOTTES_TAPE_OFFSETS_H
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#define LOTTES_TAPE_OFFSETS_H
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#pragma region lottes_tape
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// Override the placeholder atom_offset() to dispatch via token pasting.
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#undef atom_offset
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#define atom_offset(name) atom_offset_##name
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// --- atom: sym (8 words) ---
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// --- atom: tape_exit (2 words) ---
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// --- atom: yield (4 words) ---
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// --- atom: mips_flush_icache (13 words) ---
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// --- atom: sync_prim_cursor (6 words) ---
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// --- atom: set_gte_world (22 words) ---
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// --- atom: rbind_cube_tri (6 words) ---
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// --- atom: cube_tri (74 words) ---
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// --- atom: rbind_floor_tri (6 words) ---
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// --- atom: diag_yield (4 words) ---
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// --- atom: diag_color (28 words) ---
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// --- atom: diag_gte (34 words) ---
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#pragma endregion lottes_tape
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#endif // LOTTES_TAPE_OFFSETS_H
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+1
-1
@@ -663,7 +663,7 @@ enum {
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asm_clobber: clb_system, rlit(R_T4), rlit(R_T5), rlit(R_T6) \
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)
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#pragma region ASM DSL
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#pragma endregion ASM DSL
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#pragma region Reserved
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@@ -7,7 +7,10 @@
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# include "memory.h"
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#endif
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typedef U4 const MipsCode;
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#define MipsAtom_(sym) MipsCode tmpl(code,sym) [] align_(4) =
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#pragma region Tape Drive
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/* ---------------------------------------------------------------------------
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* TAPE DRIVE ABI & REGISTER ALIASES
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* ---------------------------------------------------------------------------
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@@ -63,12 +66,14 @@ FI_ TapeBuilder tb_make( FArena* arena) { return (TapeBuilder){
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#define tb_emit_(tb, atom) tb_emit(tb, tmpl(code,atom))
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FI_ void tb_emit(TapeBuilder* tb, MipsCode* atom) { u4_r(tb->ptr)[tb->used] = u4_(atom); ++ tb->used; }
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FI_ void tb_data(TapeBuilder* tb, U4 data) { u4_r(tb->ptr)[tb->used] = u4_(data); ++ tb->used; }
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FI_ void tb_data(TapeBuilder* tb, U4 data) { u4_r(tb->ptr)[tb->used] = u4_(data); ++ tb->used; }
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FI_ Slice_U4 tb_end (TapeBuilder* tb) { tb_emit(tb,code_tape_exit); return (Slice_U4){ C_(U4*,tb->ptr), tb->used }; }
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FI_ Slice_U4 tb_slice(TapeBuilder tb) { return (Slice_U4){ C_(U4*,tb.ptr), tb.used }; }
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#define tb_scope(tb) for(U4 tbs_once=0;tbs_once==0;++tbs_once,tb_emit(tb,code_tape_exit))
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#pragma endregion Tape Drive
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#pragma region Macro Mips Atom Components
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/* ---------------------------------------------------------------------------
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* MACRO ATOM Components (Reusable Assembly Components)
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@@ -150,6 +155,35 @@ FI_ void atombuilder_end(MipsAtomBuilder_R ab) {
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#pragma region Baked Mips Atoms
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// These atoms are resolved at compile time and are (usually) statically linked readonly data.
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enum {
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bios_flushcache = 0x44,
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bios_table_addr = 0xA0,
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};
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/* Flushes the Instruction Cache (PSX A-function 0x44 via BIOS stub at 0xA0).
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*
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* Sequence (per MIPS ABI; arguments in arg registers, RA pushed to stack):
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* 1. sp -= 8; sw $ra, 4($sp) ; save RA
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* 2. $a0 = bios_flushcache (arg0)
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* 3. $t0 = bios_table_addr ; t0 = &BIOS A-function table
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* 4. jalr $t0, $ra ; call BIOS(flushcache)
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* nop ; branch delay slot
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* 5. lw $ra, 4($sp); jr $ra ; restore & return
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* 6. sp += 8
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*/
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internal MipsAtom_(mips_flush_icache) {
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add_ui(rstack_ptr, rstack_ptr, -8) /* sp -= 8 */
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, store_word(rret_addr, rstack_ptr, 4) /* sw $ra, 4($sp) */
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, add_ui(rret_0, rdiscard, bios_flushcache) /* addiu $a0, $0, 0x44 */
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, add_ui(rtmp_0, rdiscard, bios_table_addr) /* addiu $t0, $0, 0xA0 */
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, jump_link(rtmp_0, rret_addr) /* jalr $t0, $ra */
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, nop /* BD slot */
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, load_word(rret_addr, rstack_ptr, 4) /* lw $ra, 4($sp) */
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, jump_reg(rret_addr) /* jr $ra */
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, add_ui(rstack_ptr, rstack_ptr, 8) /* sp += 8 (BD) */
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, mac_yield()
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};
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typedef Struct_(Binds_SyncPrimCursor) {
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U4 PrimtiveArena_Used;
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U4 PrimtiveBase;
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@@ -482,39 +482,6 @@ enum { _BitOffsets = 0
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} \
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} while (0 )
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// Binary Metaprogramming
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typedef U4 const MipsCode;
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#define MipsAtom_(sym) MipsCode tmpl(code,sym) [] align_(4) =
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enum {
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bios_flushcache = 0x44,
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bios_table_addr = 0xA0,
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};
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/* Flushes the Instruction Cache (PSX A-function 0x44 via BIOS stub at 0xA0).
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*
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* Sequence (per MIPS ABI; arguments in arg registers, RA pushed to stack):
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* 1. sp -= 8; sw $ra, 4($sp) ; save RA
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* 2. $a0 = bios_flushcache (arg0)
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* 3. $t0 = bios_table_addr ; t0 = &BIOS A-function table
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* 4. jalr $t0, $ra ; call BIOS(flushcache)
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* nop ; branch delay slot
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* 5. lw $ra, 4($sp); jr $ra ; restore & return
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* 6. sp += 8
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*/
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internal MipsAtom_(mips_flush_icache) {
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add_ui(rstack_ptr, rstack_ptr, -8) /* sp -= 8 */
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, store_word(rret_addr, rstack_ptr, 4) /* sw $ra, 4($sp) */
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, add_ui(rret_0, rdiscard, bios_flushcache) /* addiu $a0, $0, 0x44 */
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, add_ui(rtmp_0, rdiscard, bios_table_addr) /* addiu $t0, $0, 0xA0 */
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, jump_link(rtmp_0, rret_addr) /* jalr $t0, $ra */
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, nop /* BD slot */
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, load_word(rret_addr, rstack_ptr, 4) /* lw $ra, 4($sp) */
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, jump_reg(rret_addr) /* jr $ra */
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, add_ui(rstack_ptr, rstack_ptr, 8) /* sp += 8 (BD) */
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};
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I_ void mips_flush_icache(void) { C_(VoidFn*, code_mips_flush_icache)(); }
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/* Standard clobber list for pure-MIPS asm volatile blocks: caller-saved
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* GPRs that the kernel treats as volatile (v0/v1/t0/t1/ra) plus the
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@@ -533,7 +500,3 @@ I_ void mips_flush_icache(void) { C_(VoidFn*, code_mips_flush_icache)(); }
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, jump_reg(rret_addr) \
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, add_ui(rstack_ptr, rstack_ptr, 8) \
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) asm_clobber: clb_system )
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void test_mips_asm() {
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asm_mips_flush_icache();
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}
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