Display Simple Selection Menu
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# ROUTINE: DISPLAY SIMPLE SELECTION MENU # This routine displays the simple selection menu that contains only one column per row and shows "Menu" in the top left. # No parameters. 80138ed8: 27bdfec8 addiu r29,r29,-0x0138 80138edc: afbf0130 sw r31,0x0130(r29) 80138ee0: afb5012c sw r21,0x012c(r29) 80138ee4: afb40128 sw r20,0x0128(r29) 80138ee8: afb30124 sw r19,0x0124(r29) 80138eec: afb20120 sw r18,0x0120(r29) 80138ef0: afb1011c sw r17,0x011c(r29) 80138ef4: 0c0532f0 jal 0x8014cbc0 # result1 = Get First Thread Parameter (); 80138ef8: afb00118 sw r16,0x0118(r29) 80138efc: 00408821 addu r17,r2,r0 # result1 80138f00: 27b00018 addiu r16,r29,0x0018 # stack.0x18 80138f04: 86230038 lh r3,0x0038(r17) # Selected row index (result1.0x38) 80138f08: 2402ffff addiu r2,r0,-0x0001 # -1 80138f0c: 14620002 bne r3,r2,0x80138f18 80138f10: afa30110 sw r3,0x0110(r29) # stack.0x110 = Selected row index # if (Selected row index == -1) 80138f14: afa00110 sw r0,0x0110(r29) # stack.0x110 = 0 80138f18: 27a40010 addiu r4,r29,0x0010 # stack.0x10 80138f1c: 02202821 addu r5,r17,r0 # result1 (display info?) 80138f20: 0c04e05d jal 0x80138174 # ? 0x138174 (stack.0x10, result1, stack.0x18); // Calls image loading setup routine (0x14a834) multiple times... # // maybe shows the menu background? 80138f24: 02003021 addu r6,r16,r0 # stack.0x18 80138f28: 27a40094 addiu r4,r29,0x0094 # stack.0x94 80138f2c: 02002821 addu r5,r16,r0 # stack.0x18 80138f30: 0c052fd5 jal 0x8014bf54 # ? 0x14bf54 (stack.0x94, stack.0x18, 0x7c); 80138f34: 3406007c ori r6,r0,0x007c # 0x7c 80138f38: 27a60010 addiu r6,r29,0x0010 # stack.0x10 80138f3c: 34070001 ori r7,r0,0x0001 # 1 80138f40: 00009021 addu r18,r0,r0 # count = 0 80138f44: 0200a821 addu r21,r16,r0 # stack.0x18 80138f48: 86240004 lh r4,0x0004(r17) # Inner window width (result1.0x4) 80138f4c: 86250006 lh r5,0x0006(r17) # Inner window height (result1.0x6) 80138f50: 0c05312a jal 0x8014c4a8 # result2 = ? 0x14c4a8 (Inner window width, Inner window height, stack.0x10, 1); 80138f54: 34140002 ori r20,r0,0x0002 # 2 80138f58: 34040008 ori r4,r0,0x0008 # 8 80138f5c: 34050009 ori r5,r0,0x0009 # 9 80138f60: 3c108016 lui r16,0x8016 80138f64: 26105fa8 addiu r16,r16,0x5fa8 # 0x80165fa8 80138f68: 86230004 lh r3,0x0004(r17) # Inner window width 80138f6c: 00409821 addu r19,r2,r0 # result2 (behvaior info?) 80138f70: 0c0529b3 jal 0x8014a6cc # ? 0x14a6cc (8, 9); <-- sets inner window buffer size 80138f74: ae030000 sw r3,0x0000(r16) # *0x80165fa8 = Inner window width 80138f78: 02602821 addu r5,r19,r0 # result2 80138f7c: 8624001c lh r4,0x001c(r17) # Menu text entry to display for entire menu text (result1.0x1c) 80138f80: 3c018016 lui r1,0x8016 80138f84: ac205f8c sw r0,0x5f8c(r1) # *0x80165f8c 80138f88: 0c052cbc jal 0x8014b2f0 # Display Menu Text Entry (Menu text entry, result2, 0x80165fa0); 80138f8c: 2606fff8 addiu r6,r16,-0x0008 # 0x80165fa0 80138f90: 27a40010 addiu r4,r29,0x0010 # stack.0x10 80138f94: 0c00923f jal 0x800248fc # SYS LoadImage (RECT *Recp, ulong *p); transfer image data 80138f98: 02602821 addu r5,r19,r0 # result2 # // This loop continues iterating as long as the menu is open, and exits when an option is selected or the menu is closed. # while (true) { 80138f9c: 0c0532a0 jal 0x8014ca80 # Switch To Next Thread (); // Bringing up menu causes hard lock if removed 80138fa0: 00000000 nop 80138fa4: 16400004 bne r18,r0,0x80138fb8 80138fa8: 32420001 andi r2,r18,0x0001 # count % 2 # if (count == 0) { 80138fac: 0c04bc13 jal 0x8012f04c # ? 0x12f04c (result2); // Select button soft locks if removed - dims menu, but nothing happens 80138fb0: 02602021 addu r4,r19,r0 # result2 80138fb4: 32420001 andi r2,r18,0x0001 # count % 2 # } 80138fb8: 00021940 sll r3,r2,0x05 # (count % 2) * 32 80138fbc: 00621823 subu r3,r3,r2 # (count % 2) * 31 80138fc0: 00031880 sll r3,r3,0x02 # (count % 2) * 124 80138fc4: 02a38021 addu r16,r21,r3 # stack.0x18 + ((count % 2) * 124) // Palette related? 80138fc8: 97a20110 lhu r2,0x0110(r29) # stack.0x110 80138fcc: 02002021 addu r4,r16,r0 # stack.0x18 + ((count % 2) * 124) 80138fd0: 0c04e118 jal 0x80138460 # ? 0x138460 (stack.0x18 + ((count % 2) * 124)); // Menu colors messed up if removed 80138fd4: a6220038 sh r2,0x0038(r17) # result1.0x38 = stack.0x110 80138fd8: 02202021 addu r4,r17,r0 # result1 80138fdc: 02002821 addu r5,r16,r0 # stack.0x18 + ((count % 2) * 124) 80138fe0: 8fa70110 lw r7,0x0110(r29) # stack.0x110 80138fe4: 0c04e15c jal 0x80138570 # ? 0x138570 (result1, stack.0x18 + ((count % 2) * 124), count, stack.0x110); // Cursor doesn't display if removed 80138fe8: 02403021 addu r6,r18,r0 # count 80138fec: 8fa30090 lw r3,0x0090(r29) # stack.0x90 80138ff0: 00000000 nop 80138ff4: 14600005 bne r3,r0,0x8013900c # if (( 80138ff8: 00000000 nop # (stack.0x90 == 0) 80138ffc: 8fa2010c lw r2,0x010c(r29) # stack.0x10c 80139000: 00000000 nop 80139004: 10540007 beq r2,r20,0x80139024 # AND (stack.0x10c == 2)) 80139008: 00000000 nop 8013900c: 14740007 bne r3,r20,0x8013902c # OR ((stack.0x90 == 2) 80139010: 00000000 nop 80139014: 8fa2010c lw r2,0x010c(r29) # stack.0x10c 80139018: 00000000 nop 8013901c: 14400003 bne r2,r0,0x8013902c # AND (stack.0x10c == 0))) { 80139020: 00000000 nop 80139024: afa00090 sw r0,0x0090(r29) # stack.0x90 = 0 80139028: afa0010c sw r0,0x010c(r29) # stack.0x10c = 0 # } 8013902c: 3c048017 lui r4,0x8017 80139030: 248497d0 addiu r4,r4,-0x6830 # 0x801697d0 80139034: 0c04e025 jal 0x80138094 # result = ? 0x138094 (0x801697d0); // Checks if menu was closed? Either by selecting an option that closes # // the window, or menu was cancelled 80139038: 00000000 nop 8013903c: 1440000d bne r2,r0,0x80139074 # if (result != 0), break // Exits the loop if so... 80139040: 02202021 addu r4,r17,r0 # result1 80139044: 8fa50110 lw r5,0x0110(r29) # stack.0x110 80139048: 0c04df04 jal 0x80137c10 # Handle Menu Action (result1, stack.0x110); // Circle button action doesn't work if removed 8013904c: 26520001 addiu r18,r18,0x0001 # count = count + 1 80139050: 02202021 addu r4,r17,r0 # result1 80139054: 0c04dfb5 jal 0x80137ed4 # ? 0x137ed4 (result1, stack.0x110); // Can't change selection if removed (Up and Down buttons don't do anything) 80139058: 27a50110 addiu r5,r29,0x0110 # stack.0x110 8013905c: 0c04dfe1 jal 0x80137f84 # ? 0x137f84 (result1); // Can't cancel out of menu if removed (X button doesn't work) 80139060: 02202021 addu r4,r17,r0 # result1 80139064: 0c04e2c4 jal 0x80138b10 # ? 0x138b10 (stack.0x18 + ((count % 2) * 124)); // Menu doesn't display if removed, but is still functional 80139068: 02002021 addu r4,r16,r0 # stack.0x18 + ((count % 2) * 124) 8013906c: 0804e3e7 j 0x80138f9c # } 80139070: 00000000 nop 80139074: 0c0532a0 jal 0x8014ca80 # Switch To Next Thread (); 80139078: 00000000 nop 8013907c: 0c0532fd jal 0x8014cbf4 # result = Get Second Thread Parameter (); 80139080: 00000000 nop 80139084: 14400003 bne r2,r0,0x80139094 # if (result == 0) { 80139088: 00000000 nop 8013908c: 0c053256 jal 0x8014c958 # Stop Current Thread (); 80139090: 00000000 nop # } 80139094: 8fbf0130 lw r31,0x0130(r29) 80139098: 8fb5012c lw r21,0x012c(r29) 8013909c: 8fb40128 lw r20,0x0128(r29) 801390a0: 8fb30124 lw r19,0x0124(r29) 801390a4: 8fb20120 lw r18,0x0120(r29) 801390a8: 8fb1011c lw r17,0x011c(r29) 801390ac: 8fb00118 lw r16,0x0118(r29) 801390b0: 27bd0138 addiu r29,r29,0x0138 801390b4: 03e00008 jr r31 801390b8: 00000000 nop
