Disassemble some runtime code

data/objects.txt

@@ -1,15 +1,17 @@
 build/obj/0.o
 build/obj/sdk/msl/runtime/__mem.o
+build/obj/1.o
+build/obj/sdk/msl/runtime/runtime.o
 build/obj/sdk/trk/__exception.o
-build/obj/2.o
-build/obj/sdk/rvl/base/PPCArch.o
 build/obj/3.o
-build/obj/sdk/rvl/os/OS.o
+build/obj/sdk/rvl/base/PPCArch.o
 build/obj/4.o
+build/obj/sdk/rvl/os/OS.o
+build/obj/5.o
 build/obj/sdk/rvl/os/OSCache.o
 build/obj/sdk/rvl/os/OSContext.o
-build/obj/6.o
+build/obj/7.o
 build/obj/sdk/rvl/os/__start.o
 build/obj/sdk/rvl/os/__ppc_eabi_init.o
-build/obj/9.o
 build/obj/10.o
+build/obj/11.o

data/ranges.csv

@@ -1,5 +1,6 @@
 .init start,.init end,extab start,extab end,extabindex start,extabindex end,.text start,.text end,.ctors start,.ctors end,.dtors start,.dtors end,.rodata start,.rodata end,.data start,.data end,.bss start,.bss end,.sdata start,.sdata end,.sbss start,.sbss end,.sdata2 start,.sdata2 end,.sbss2 start,.sbss2 end,File
 80004000,80004380,,,,,80006a8c,80006aa8,,,,,,,,,,,,,,,,,,,sdk/msl/runtime/__mem.o
+,,,,,,80007214,8000748c,,,,,80406580,80406598,,,,,,,,,,,,,sdk/msl/runtime/runtime.o
 80004380,800062c0,,,,,,,,,,,,,,,,,,,,,,,,,sdk/trk/__exception.o
 ,,,,,,8001a0b0,8001a2c0,,,,,,,80421da0,80421dd7,,,,,,,,,,,sdk/rvl/base/PPCArch.o
 ,,,,,,8001b670,8001b6c4,,,,,,,,,,,,,,,,,,,sdk/rvl/os/OS.o

data/symbols.csv

@@ -1,8 +1,5 @@
 Address,SymbolName
 80006b88,__destroy_global_chain
-80007214,__cvt_fp2unsigned
-80007334,_savegpr_25
-80007380,_restgpr_25
 800079fc,__init_cpp_exceptions
 80007a38,__fini_cpp_exceptions
 80015a14,InitMetroTRK

sdk/msl/runtime/runtime.c

@@ -0,0 +1,360 @@
+const double __constants[] = {0.0, 4294967296.0, 2147483648.0};
+
+asm unsigned int __cvt_fp2unsigned(register double v) {
+  // clang-format off
+  nofralloc;
+  stwu r1, -0x10(r1);
+  lis r4, __constants@ha;
+  addi r4, r4, __constants@l;
+  li r3, 0;
+  lfd f0, 0(r4);
+  lfd f3, 8(r4);
+  lfd f4, 16(r4);
+  fcmpu cr0, v, f0;
+  fcmpu cr6, v, f3;
+  blt LAB_80007268;
+  subi r3, r3, 1;
+  bge cr6, LAB_80007268;
+  fcmpu cr7, v, f4;
+  fmr f2, v;
+  blt cr7, LAB_80007254;
+  fsub f2, v, f4;
+LAB_80007254:
+  fctiwz f2, f2;
+  stfd f2, 0x8(r1);
+  lwz r3, 0xc(r1);
+  blt cr7, LAB_80007268;
+  subis r3, r3, 0x8000;
+LAB_80007268:
+  addi r1, r1, 0x10;
+  blr;
+  // clang-format on
+}
+
+void _savefpr_14(void);
+void _savefpr_15(void);
+void _savefpr_16(void);
+void _savefpr_17(void);
+void _savefpr_18(void);
+void _savefpr_19(void);
+void _savefpr_20(void);
+void _savefpr_21(void);
+void _savefpr_22(void);
+void _savefpr_23(void);
+void _savefpr_24(void);
+void _savefpr_25(void);
+void _savefpr_26(void);
+void _savefpr_27(void);
+void _savefpr_28(void);
+void _savefpr_29(void);
+void _savefpr_30(void);
+void _savefpr_31(void);
+void _restfpr_14(void);
+void _restfpr_15(void);
+void _restfpr_16(void);
+void _restfpr_17(void);
+void _restfpr_18(void);
+void _restfpr_19(void);
+void _restfpr_20(void);
+void _restfpr_21(void);
+void _restfpr_22(void);
+void _restfpr_23(void);
+void _restfpr_24(void);
+void _restfpr_25(void);
+void _restfpr_26(void);
+void _restfpr_27(void);
+void _restfpr_28(void);
+void _restfpr_29(void);
+void _restfpr_30(void);
+void _restfpr_31(void);
+
+void _savegpr_14(void);
+void _savegpr_15(void);
+void _savegpr_16(void);
+void _savegpr_17(void);
+void _savegpr_18(void);
+void _savegpr_19(void);
+void _savegpr_20(void);
+void _savegpr_21(void);
+void _savegpr_22(void);
+void _savegpr_23(void);
+void _savegpr_24(void);
+void _savegpr_25(void);
+void _savegpr_26(void);
+void _savegpr_27(void);
+void _savegpr_28(void);
+void _savegpr_29(void);
+void _savegpr_30(void);
+void _savegpr_31(void);
+void _restgpr_14(void);
+void _restgpr_15(void);
+void _restgpr_16(void);
+void _restgpr_17(void);
+void _restgpr_18(void);
+void _restgpr_19(void);
+void _restgpr_20(void);
+void _restgpr_21(void);
+void _restgpr_22(void);
+void _restgpr_23(void);
+void _restgpr_24(void);
+void _restgpr_25(void);
+void _restgpr_26(void);
+void _restgpr_27(void);
+void _restgpr_28(void);
+void _restgpr_29(void);
+void _restgpr_30(void);
+void _restgpr_31(void);
+
+asm void __save_fpr(void) {
+  // clang-format off
+
+  nofralloc;
+entry _savefpr_14;
+  stfd f14, -0x90(r11);
+entry _savefpr_15;
+  stfd f15, -0x88(r11);
+entry _savefpr_16;
+  stfd f16, -0x80(r11);
+entry _savefpr_17;
+  stfd f17, -0x78(r11);
+entry _savefpr_18;
+  stfd f18, -0x70(r11);
+entry _savefpr_19;
+  stfd f19, -0x68(r11);
+entry _savefpr_20;
+  stfd f20, -0x60(r11);
+entry _savefpr_21;
+  stfd f21, -0x58(r11);
+entry _savefpr_22;
+  stfd f22, -0x50(r11);
+entry _savefpr_23;
+  stfd f23, -0x48(r11);
+entry _savefpr_24;
+  stfd f24, -0x40(r11);
+entry _savefpr_25;
+  stfd f25, -0x38(r11);
+entry _savefpr_26;
+  stfd f26, -0x30(r11);
+entry _savefpr_27;
+  stfd f27, -0x28(r11);
+entry _savefpr_28;
+  stfd f28, -0x20(r11);
+entry _savefpr_29;
+  stfd f29, -0x18(r11);
+entry _savefpr_30;
+  stfd f30, -0x10(r11);
+entry _savefpr_31;
+  stfd f31, -0x08(r11);
+  blr;
+
+  // clang-format on
+}
+
+asm void __restore_fpr(void) {
+  // clang-format off
+
+  nofralloc;
+entry _restfpr_14;
+  lfd f14, -0x90(r11);
+entry _restfpr_15;
+  lfd f15, -0x88(r11);
+entry _restfpr_16;
+  lfd f16, -0x80(r11);
+entry _restfpr_17;
+  lfd f17, -0x78(r11);
+entry _restfpr_18;
+  lfd f18, -0x70(r11);
+entry _restfpr_19;
+  lfd f19, -0x68(r11);
+entry _restfpr_20;
+  lfd f20, -0x60(r11);
+entry _restfpr_21;
+  lfd f21, -0x58(r11);
+entry _restfpr_22;
+  lfd f22, -0x50(r11);
+entry _restfpr_23;
+  lfd f23, -0x48(r11);
+entry _restfpr_24;
+  lfd f24, -0x40(r11);
+entry _restfpr_25;
+  lfd f25, -0x38(r11);
+entry _restfpr_26;
+  lfd f26, -0x30(r11);
+entry _restfpr_27;
+  lfd f27, -0x28(r11);
+entry _restfpr_28;
+  lfd f28, -0x20(r11);
+entry _restfpr_29;
+  lfd f29, -0x18(r11);
+entry _restfpr_30;
+  lfd f30, -0x10(r11);
+entry _restfpr_31;
+  lfd f31, -0x08(r11);
+  blr;
+
+  // clang-format on
+}
+
+asm void __save_gpr(void) {
+  // clang-format off
+
+  nofralloc;
+entry _savegpr_14;
+  stw r14, -0x48(r11);
+entry _savegpr_15;
+  stw r15, -0x44(r11);
+entry _savegpr_16;
+  stw r16, -0x40(r11);
+entry _savegpr_17;
+  stw r17, -0x3c(r11);
+entry _savegpr_18;
+  stw r18, -0x38(r11);
+entry _savegpr_19;
+  stw r19, -0x34(r11);
+entry _savegpr_20;
+  stw r20, -0x30(r11);
+entry _savegpr_21;
+  stw r21, -0x2c(r11);
+entry _savegpr_22;
+  stw r22, -0x28(r11);
+entry _savegpr_23;
+  stw r23, -0x24(r11);
+entry _savegpr_24;
+  stw r24, -0x20(r11);
+entry _savegpr_25;
+  stw r25, -0x1c(r11);
+entry _savegpr_26;
+  stw r26, -0x18(r11);
+entry _savegpr_27;
+  stw r27, -0x14(r11);
+entry _savegpr_28;
+  stw r28, -0x10(r11);
+entry _savegpr_29;
+  stw r29, -0x0c(r11);
+entry _savegpr_30;
+  stw r30, -0x08(r11);
+entry _savegpr_31;
+  stw r31, -0x04(r11);
+  blr;
+
+  // clang-format on
+}
+
+asm void __restore_gpr(void) {
+  // clang-format off
+
+  nofralloc;
+entry _restgpr_14;
+  lwz r14, -0x48(r11);
+entry _restgpr_15;
+  lwz r15, -0x44(r11);
+entry _restgpr_16;
+  lwz r16, -0x40(r11);
+entry _restgpr_17;
+  lwz r17, -0x3c(r11);
+entry _restgpr_18;
+  lwz r18, -0x38(r11);
+entry _restgpr_19;
+  lwz r19, -0x34(r11);
+entry _restgpr_20;
+  lwz r20, -0x30(r11);
+entry _restgpr_21;
+  lwz r21, -0x2c(r11);
+entry _restgpr_22;
+  lwz r22, -0x28(r11);
+entry _restgpr_23;
+  lwz r23, -0x24(r11);
+entry _restgpr_24;
+  lwz r24, -0x20(r11);
+entry _restgpr_25;
+  lwz r25, -0x1c(r11);
+entry _restgpr_26;
+  lwz r26, -0x18(r11);
+entry _restgpr_27;
+  lwz r27, -0x14(r11);
+entry _restgpr_28;
+  lwz r28, -0x10(r11);
+entry _restgpr_29;
+  lwz r29, -0x0c(r11);
+entry _restgpr_30;
+  lwz r30, -0x08(r11);
+entry _restgpr_31;
+  lwz r31, -0x04(r11);
+  blr;
+
+  // clang-format on
+}
+
+asm void __div2u() {
+  // clang-format off
+  nofralloc;
+  cmpwi r3, 0;
+  cntlzw r0, r3;
+  cntlzw r9, r4;
+  bne LAB_800073b4;
+  addi r0, r9, 0x20;
+LAB_800073b4:
+  cmpwi r5, 0;
+  cntlzw r9, r5;
+  cntlzw r10, r6;
+  bne LAB_800073c8;
+  addi r9, r10, 0x20;
+LAB_800073c8:
+  cmpw r0, r9;
+  subfic r10, r0, 0x40;
+  bgt LAB_80007480;
+  addi r9, r9, 1;
+  subfic r9, r9, 0x40;
+  add r0, r0, r9;
+  subf r9, r9, r10;
+  mtctr r9;
+  cmpwi r9, 0x20;
+  subi r7, r9, 0x20;
+  blt LAB_80007400;
+  srw r8, r3, r7;
+  li r7, 0;
+  b LAB_80007414;
+LAB_80007400:
+  srw r8, r4, r9;
+  subfic r7, r9, 0x20;
+  slw r7, r3, r7;
+  or r8, r8, r7;
+  srw r7, r3, r9;
+LAB_80007414:
+  cmpwi r0, 0x20;
+  subic r9, r0, 0x20;
+  blt LAB_8000742c;
+  slw r3, r4, r9;
+  li r4, 0;
+  b LAB_80007440;
+LAB_8000742c:
+  slw r3, r3, r0;
+  subfic r9, r0, 0x20;
+  srw r9, r4, r9;
+  or r3, r3, r9;
+  slw r4, r4, r0;
+LAB_80007440:
+  li r10, -1;
+  addic r7, r7, 0;
+LAB_80007448:
+  adde r4, r4, r4;
+  adde r3, r3, r3;
+  adde r8, r8, r8;
+  adde r7, r7, r7;
+  subfc r0, r6, r8;
+  subfe. r9, r5, r7;
+  blt LAB_80007470;
+  mr r8, r0;
+  mr r7, r9;
+  addic r0, r10, 1;
+LAB_80007470:
+  bdnz LAB_80007448;
+  adde r4, r4, r4;
+  adde r3, r3, r3;
+  blr;
+LAB_80007480:
+  li r4, 0;
+  li r3, 0;
+  blr;
+  // clang-format on
+}

src/bin/buildgen.rs

@@ -13,6 +13,7 @@ fn parse_hex(s: &str) -> Result<u32, ParseIntError> {
 
 const SOURCES: &[(&str, &str)] = &[
     ("sdk/msl/runtime/__mem.c", "msl"),
+    ("sdk/msl/runtime/runtime.c", "msl"),
     ("sdk/rvl/base/PPCArch.c", "sdk"),
     ("sdk/rvl/os/OS.c", "sdk"),
     ("sdk/rvl/os/OSCache.c", "sdk"),