Difference between revisions of "Image Loading Setup (0x14a5e8)"
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# ROUTINE: Image loading setup (0x14a5e8) | # ROUTINE: Image loading setup (0x14a5e8) | ||
# Parameters: | # Parameters: | ||
| − | # r4 = ( | + | # r4 = (displayPointer) Reference to struct for image display: 52 bytes |
0014a5e8: 27bdffe8 addiu r29,r29,-0x0018 | 0014a5e8: 27bdffe8 addiu r29,r29,-0x0018 | ||
| Line 9: | Line 9: | ||
0014a5f8: 10400005 beq r2,r0,0x0014a610 # if (*0x80165ff2 != 0) { | 0014a5f8: 10400005 beq r2,r0,0x0014a610 # if (*0x80165ff2 != 0) { | ||
0014a5fc: afbf0010 sw r31,0x0010(r29) | 0014a5fc: afbf0010 sw r31,0x0010(r29) | ||
| − | 0014a600: 0c0092f6 jal 0x00024bd8 # ROUTINE: [[SYS DrawPrim]] | + | 0014a600: 0c0092f6 jal 0x00024bd8 # ROUTINE: [[SYS DrawPrim]] (displayPointer); |
0014a604: 00000000 nop | 0014a604: 00000000 nop | ||
0014a608: 08052994 j 0x0014a650 | 0014a608: 08052994 j 0x0014a650 | ||
| Line 19: | Line 19: | ||
0014a61c: 3c058017 lui r5,0x8017 | 0014a61c: 3c058017 lui r5,0x8017 | ||
0014a620: 8ca53f44 lw r5,0x3f44(r5) # *0x80173f44 | 0014a620: 8ca53f44 lw r5,0x3f44(r5) # *0x80173f44 | ||
| − | 0014a624: 8ce30000 lw r3,0x0000(r7) # *( | + | 0014a624: 8ce30000 lw r3,0x0000(r7) # *(displayPointer) |
0014a628: 8ca20000 lw r2,0x0000(r5) # *(*0x80173f44) | 0014a628: 8ca20000 lw r2,0x0000(r5) # *(*0x80173f44) | ||
| − | 0014a62c: 00661824 and r3,r3,r6 # * | + | 0014a62c: 00661824 and r3,r3,r6 # *displayPointer & 0xff000000 |
0014a630: 00441024 and r2,r2,r4 # *(*0x80173f44) & 0x00ffffff | 0014a630: 00441024 and r2,r2,r4 # *(*0x80173f44) & 0x00ffffff | ||
| − | 0014a634: 00621825 or r3,r3,r2 # (* | + | 0014a634: 00621825 or r3,r3,r2 # (*displayPointer & 0xff000000) | (*(*0x80173f44) & 0x00ffffff) |
| − | 0014a638: ace30000 sw r3,0x0000(r7) # * | + | 0014a638: ace30000 sw r3,0x0000(r7) # *displayPointer = (*displayPointer & 0xff000000) | (*(*0x80173f44) & 0x00ffffff) // This affects what gets displayed |
0014a63c: 8ca20000 lw r2,0x0000(r5) # *(*0x80173f44) | 0014a63c: 8ca20000 lw r2,0x0000(r5) # *(*0x80173f44) | ||
| − | 0014a640: 00e42024 and r4,r7,r4 # | + | 0014a640: 00e42024 and r4,r7,r4 # displayPointer & 0x00ffffff |
0014a644: 00461024 and r2,r2,r6 # *(*0x80173f44) & 0xff000000 | 0014a644: 00461024 and r2,r2,r6 # *(*0x80173f44) & 0xff000000 | ||
| − | 0014a648: 00441025 or r2,r2,r4 # (*(*0x80173f44) & 0xff000000) | ( | + | 0014a648: 00441025 or r2,r2,r4 # (*(*0x80173f44) & 0xff000000) | (displayPointer & 0x00ffffff) |
| − | 0014a64c: aca20000 sw r2,0x0000(r5) # *0x80173f44 = (*(*0x80173f44) & 0xff000000) | ( | + | 0014a64c: aca20000 sw r2,0x0000(r5) # *0x80173f44 = (*(*0x80173f44) & 0xff000000) | (displayPointer & 0x00ffffff) // Must store this or image doesn't load/display |
# } | # } | ||
0014a650: 8fbf0010 lw r31,0x0010(r29) | 0014a650: 8fbf0010 lw r31,0x0010(r29) | ||
Latest revision as of 16:20, 29 October 2024
# ROUTINE: Image loading setup (0x14a5e8)
# Parameters:
# r4 = (displayPointer) Reference to struct for image display: 52 bytes
0014a5e8: 27bdffe8 addiu r29,r29,-0x0018
0014a5ec: 3c028016 lui r2,0x8016
0014a5f0: 94425ff2 lhu r2,0x5ff2(r2) # *0x80165ff2
0014a5f4: 00803821 addu r7,r4,r0
0014a5f8: 10400005 beq r2,r0,0x0014a610 # if (*0x80165ff2 != 0) {
0014a5fc: afbf0010 sw r31,0x0010(r29)
0014a600: 0c0092f6 jal 0x00024bd8 # ROUTINE: SYS DrawPrim (displayPointer);
0014a604: 00000000 nop
0014a608: 08052994 j 0x0014a650
0014a60c: 00000000 nop
# } else {
0014a610: 3c0400ff lui r4,0x00ff
0014a614: 3484ffff ori r4,r4,0xffff # 0x00ffffff
0014a618: 3c06ff00 lui r6,0xff00 # 0xff000000
0014a61c: 3c058017 lui r5,0x8017
0014a620: 8ca53f44 lw r5,0x3f44(r5) # *0x80173f44
0014a624: 8ce30000 lw r3,0x0000(r7) # *(displayPointer)
0014a628: 8ca20000 lw r2,0x0000(r5) # *(*0x80173f44)
0014a62c: 00661824 and r3,r3,r6 # *displayPointer & 0xff000000
0014a630: 00441024 and r2,r2,r4 # *(*0x80173f44) & 0x00ffffff
0014a634: 00621825 or r3,r3,r2 # (*displayPointer & 0xff000000) | (*(*0x80173f44) & 0x00ffffff)
0014a638: ace30000 sw r3,0x0000(r7) # *displayPointer = (*displayPointer & 0xff000000) | (*(*0x80173f44) & 0x00ffffff) // This affects what gets displayed
0014a63c: 8ca20000 lw r2,0x0000(r5) # *(*0x80173f44)
0014a640: 00e42024 and r4,r7,r4 # displayPointer & 0x00ffffff
0014a644: 00461024 and r2,r2,r6 # *(*0x80173f44) & 0xff000000
0014a648: 00441025 or r2,r2,r4 # (*(*0x80173f44) & 0xff000000) | (displayPointer & 0x00ffffff)
0014a64c: aca20000 sw r2,0x0000(r5) # *0x80173f44 = (*(*0x80173f44) & 0xff000000) | (displayPointer & 0x00ffffff) // Must store this or image doesn't load/display
# }
0014a650: 8fbf0010 lw r31,0x0010(r29)
0014a654: 27bd0018 addiu r29,r29,0x0018
0014a658: 03e00008 jr r31
0014a65c: 00000000 nop
