Slope Calculations

Calculate Z Mod
Current Stack:
0x10 - Unit's X
0x12 - Unit's Y
Previous Stack:
0x00 - Mount/Unit's X Mod
0x02 - Mount/Unit's Map Level
0x03 - 
0x04 - Mount/Unit's Y Mod

0007c80c: 27bdffd8 addiu r29,r29,0xffd8		(routine has a really bad setup - could be MUCH better)
0007c810: afb00018 sw r16,0x0018(r29)
0007c814: 00808021 addu r16,r4,r0		r16 = Stack Pointer
0007c818: afb1001c sw r17,0x001c(r29)
0007c81c: 3c119249 lui r17,0x9249		r17 = -0.42857143 (-3 / 7)
0007c820: afbf0020 sw r31,0x0020(r29)		(is 4 / 7, but mult makes it negative)
0007c824: 96020000 lhu r2,0x0000(r16)		Load X Mod
0007c828: 36312493 ori r17,r17,0x2493
0007c82c: 00021400 sll r2,r2,0x10
0007c830: 00021c03 sra r3,r2,0x10		r3 = X Mod
0007c834: 00710018 mult r3,r17			X Mod * -3 / 7
0007c838: 000217c3 sra r2,r2,0x1f		(multu would do this without needing to
0007c83c: 00002010 mfhi r4			 add the base back into it, afaik)
0007c840: 00832021 addu r4,r4,r3		X Mod * 4 / 7 (cancels the negative)
0007c844: 00042103 sra r4,r4,0x04		Unit's X = XMod / 28
0007c848: 00822023 subu r4,r4,r2
0007c84c: a7a40010 sh r4,0x0010(r29)		Store Unit's X
0007c850: 96030004 lhu r3,0x0004(r16)		Load Y Mod
0007c854: 00000000 nop
0007c858: 00031c00 sll r3,r3,0x10
0007c85c: 00033403 sra r6,r3,0x10
0007c860: 00d10018 mult r6,r17			Y Mod * -3 / 7
0007c864: 00042400 sll r4,r4,0x10
0007c868: 00042403 sra r4,r4,0x10
0007c86c: 00031fc3 sra r3,r3,0x1f
0007c870: 00001010 mfhi r2
0007c874: 00461021 addu r2,r2,r6		Y Mod * 4 / 7
0007c878: 00021103 sra r2,r2,0x04		Unit's Y = Y Mod / 28
0007c87c: 00431023 subu r2,r2,r3
0007c880: a7a20012 sh r2,0x0012(r29)		Store Unit's Y
0007c884: 00021400 sll r2,r2,0x10
0007c888: 30a600ff andi r6,r5,0x00ff		r6 = Unit's Map Level
0007c88c: 0c060fed jal 0x00183fb4		Get Tile's Data Pointer
0007c890: 00022c03 sra r5,r2,0x10		r5 = Unit's Y
0007c894: 00402821 addu r5,r2,r0		r5 = Tile Data Pointer
0007c898: 90a30002 lbu r3,0x0002(r5)		Load Tile's Height
0007c89c: 00000000 nop
0007c8a0: 00031040 sll r2,r3,0x01		Height * 2
0007c8a4: 00431021 addu r2,r2,r3		Height * 3
0007c8a8: 00021080 sll r2,r2,0x02		Height * 12
0007c8ac: 00025023 subu r10,r0,r2		Z Mod = -Height * 12
0007c8b0: 90a20003 lbu r2,0x0003(r5)		Load Halves + Depth
0007c8b4: 00000000 nop
0007c8b8: 3049001f andi r9,r2,0x001f		r9 = Halves
0007c8bc: 112001c6 beq r9,r0,0x0007cfd8		Branch if Halves = 0 (skips ALL of the slope checks)
0007c8c0: 01402021 addu r4,r10,r0		r4 = Z Mod
0007c8c4: 90a30004 lbu r3,0x0004(r5)		Load Slope Type
0007c8c8: 34020052 ori r2,r0,0x0052
0007c8cc: 1062002f beq r3,r2,0x0007c98c		Branch if Slope Type = 0x52
0007c8d0: 28620053 slti r2,r3,0x0053
0007c8d4: 10400013 beq r2,r0,0x0007c924		Branch if Slope Type >= 0x53
0007c8d8: 34020025 ori r2,r0,0x0025
0007c8dc: 1062004f beq r3,r2,0x0007ca1c		Branch if Slope Type = 0x25
0007c8e0: 00000000 nop
0007c8e4: 28620026 slti r2,r3,0x0026
0007c8e8: 10400007 beq r2,r0,0x0007c908		Branch if Slope Type >= 0x26
0007c8ec: 34020011 ori r2,r0,0x0011
0007c8f0: 10620084 beq r3,r2,0x0007cb04		Branch if Slope Type = 0x11
0007c8f4: 34020014 ori r2,r0,0x0014
0007c8f8: 106200ac beq r3,r2,0x0007cbac		Branch if Slope Type = 0x14
0007c8fc: 00041400 sll r2,r4,0x10
0007c900: 0801f3f7 j 0x0007cfdc
0007c904: 00000000 nop
0007c908: 34020041 ori r2,r0,0x0041
0007c90c: 10620059 beq r3,r2,0x0007ca74		Branch if Slope Type = 0x41
0007c910: 34020044 ori r2,r0,0x0044
0007c914: 106200cd beq r3,r2,0x0007cc4c		Branch if Slope Type = 0x44
0007c918: 00041400 sll r2,r4,0x10
0007c91c: 0801f3f7 j 0x0007cfdc
0007c920: 00000000 nop
0007c924: 34020069 ori r2,r0,0x0069
0007c928: 1062013d beq r3,r2,0x0007ce20		Branch if Slope Type = 0x69
0007c92c: 2862006a slti r2,r3,0x006a
0007c930: 10400008 beq r2,r0,0x0007c954		Branch if Slope Type >= 0x6a
0007c934: 34020058 ori r2,r0,0x0058
0007c938: 10620025 beq r3,r2,0x0007c9d0		Branch if Slope Type = 0x58
0007c93c: 00000000 nop
0007c940: 34020066 ori r2,r0,0x0066
0007c944: 1062010c beq r3,r2,0x0007cd78		Branch if Slope Type = 0x66
0007c948: 00041400 sll r2,r4,0x10
0007c94c: 0801f3f7 j 0x0007cfdc
0007c950: 00000000 nop
0007c954: 34020096 ori r2,r0,0x0096
0007c958: 106200e3 beq r3,r2,0x0007cce8		Branch if Slope Type = 0x96
0007c95c: 28620097 slti r2,r3,0x0097
0007c960: 10400005 beq r2,r0,0x0007c978		Branch if Slope Type >= 0x97
0007c964: 34020085 ori r2,r0,0x0085
0007c968: 1062003f beq r3,r2,0x0007ca68		Branch if Slope Type = 0x85
0007c96c: 00041400 sll r2,r4,0x10
0007c970: 0801f3f7 j 0x0007cfdc
0007c974: 00000000 nop
0007c978: 34020099 ori r2,r0,0x0099
0007c97c: 10620150 beq r3,r2,0x0007cec0		Branch if Slope Type = 0x99
0007c980: 00041400 sll r2,r4,0x10
0007c984: 0801f3f7 j 0x0007cfdc
0007c988: 00000000 nop

• Slope Type = 0x52*

0007c98c: 96030000 lhu r3,0x0000(r16)		Load X Mod
0007c990: 00000000 nop
0007c994: 00031c00 sll r3,r3,0x10
0007c998: 00032403 sra r4,r3,0x10
0007c99c: 00910018 mult r4,r17			X Mod * -3 / 7
0007c9a0: 00031fc3 sra r3,r3,0x1f
0007c9a4: 00001010 mfhi r2
0007c9a8: 00441021 addu r2,r2,r4		X Mod * 4 / 7
0007c9ac: 00021103 sra r2,r2,0x04		X = X Mod / 28
0007c9b0: 00431023 subu r2,r2,r3
0007c9b4: 000218c0 sll r3,r2,0x03		X * 8
0007c9b8: 00621823 subu r3,r3,r2		X * 7
0007c9bc: 00031880 sll r3,r3,0x02		X * 28
0007c9c0: 00832023 subu r4,r4,r3		X Slope = X Mod - X * 28
0007c9c4: 00042400 sll r4,r4,0x10
0007c9c8: 0801f3e8 j 0x0007cfa0			(Slope Mod = X Slope * 12 * Halves / 28)
0007c9cc: 00042403 sra r4,r4,0x10

• Slope Type = 0x58*

0007c9d0: 96030000 lhu r3,0x0000(r16)		Load X Mod
0007c9d4: 00000000 nop
0007c9d8: 00031c00 sll r3,r3,0x10
0007c9dc: 00032403 sra r4,r3,0x10
0007c9e0: 00910018 mult r4,r17			X Mod * -3 / 7
0007c9e4: 00031fc3 sra r3,r3,0x1f
0007c9e8: 00001010 mfhi r2
0007c9ec: 00441021 addu r2,r2,r4		X Mod * 4 / 7
0007c9f0: 00021103 sra r2,r2,0x04		X = X Mod / 28
0007c9f4: 00431023 subu r2,r2,r3
0007c9f8: 000218c0 sll r3,r2,0x03		X * 8
0007c9fc: 00621823 subu r3,r3,r2		X * 7
0007ca00: 00031880 sll r3,r3,0x02		X * 28
0007ca04: 00832023 subu r4,r4,r3		X Slope = X Mod - X * 28
0007ca08: 00042400 sll r4,r4,0x10
0007ca0c: 00042403 sra r4,r4,0x10
0007ca10: 00041040 sll r2,r4,0x01		X Slope * 2
0007ca14: 0801f3d7 j 0x0007cf5c			(Slope Mod = Halves * 12 - (X Slope * 12 * Halves / 28))
0007ca18: 00441021 addu r2,r2,r4		X Slope * 3

• Slope Type = 0x25*

0007ca1c: 96030004 lhu r3,0x0004(r16)		Load Y Mod
0007ca20: 00000000 nop
0007ca24: 00031c00 sll r3,r3,0x10
0007ca28: 00032403 sra r4,r3,0x10
0007ca2c: 00910018 mult r4,r17			Y Mod * -3 / 7
0007ca30: 00031fc3 sra r3,r3,0x1f
0007ca34: 00001010 mfhi r2
0007ca38: 00441021 addu r2,r2,r4		Y Mod * 4 / 7
0007ca3c: 00021103 sra r2,r2,0x04		Y = Y Mod / 28
0007ca40: 00431023 subu r2,r2,r3
0007ca44: 000218c0 sll r3,r2,0x03		Y * 8
0007ca48: 00621823 subu r3,r3,r2		Y * 7
0007ca4c: 00031880 sll r3,r3,0x02		Y * 28
0007ca50: 00832023 subu r4,r4,r3		Y Slope = Y Mod - Y * 28
0007ca54: 00042400 sll r4,r4,0x10
0007ca58: 00042403 sra r4,r4,0x10
0007ca5c: 00041040 sll r2,r4,0x01		Y Slope * 2
0007ca60: 0801f3d7 j 0x0007cf5c			(Slope Mod = Halves * 12 - (Y Slope * 12 * Halves / 28))
0007ca64: 00441021 addu r2,r2,r4		Y Slope * 3

• Slope Type = 0x85*

0007ca68: 96030004 lhu r3,0x0004(r16)		Load Y Mod
0007ca6c: 0801f266 j 0x0007c998			(Y Slope = Y Mod - Y * 28)
0007ca70: 00031c00 sll r3,r3,0x10		(Slope Mod = Y Slope * 12 * Halves / 28)

• Slope Type = 0x41*

0007ca74: 96020000 lhu r2,0x0000(r16)		Load X Mod
0007ca78: 00000000 nop
0007ca7c: 00021400 sll r2,r2,0x10
0007ca80: 00022403 sra r4,r2,0x10
0007ca84: 00910018 mult r4,r17			X Mod * -3 / 7
0007ca88: 96060004 lhu r6,0x0004(r16)		Load Y Mod
0007ca8c: 00001810 mfhi r3
0007ca90: 00063400 sll r6,r6,0x10
0007ca94: 00062c03 sra r5,r6,0x10
0007ca98: 00b10018 mult r5,r17			Y Mod * -3 / 7
0007ca9c: 000217c3 sra r2,r2,0x1f
0007caa0: 000637c3 sra r6,r6,0x1f
0007caa4: 00641821 addu r3,r3,r4		X Mod * 4 / 7
0007caa8: 00031903 sra r3,r3,0x04		X = X Mod / 28
0007caac: 00621823 subu r3,r3,r2
0007cab0: 000310c0 sll r2,r3,0x03		X * 8
0007cab4: 00431023 subu r2,r2,r3		X * 7
0007cab8: 00021080 sll r2,r2,0x02		X * 28
0007cabc: 00822023 subu r4,r4,r2		X Slope = X Mod - X * 28
0007cac0: 00042400 sll r4,r4,0x10
0007cac4: 00043c03 sra r7,r4,0x10
0007cac8: 00001010 mfhi r2
0007cacc: 00451021 addu r2,r2,r5		Y Mod * 4 / 7
0007cad0: 00021103 sra r2,r2,0x04		Y = Y Mod / 28
0007cad4: 00461023 subu r2,r2,r6
0007cad8: 000218c0 sll r3,r2,0x03		Y * 8
0007cadc: 00621823 subu r3,r3,r2		Y * 7
0007cae0: 00031880 sll r3,r3,0x02		Y * 28
0007cae4: 00a32823 subu r5,r5,r3		Y Slope = Y Mod - Y * 28
0007cae8: 00052c00 sll r5,r5,0x10
0007caec: 00052403 sra r4,r5,0x10		(Favors lowest Slope)
0007caf0: 00e4102a slt r2,r7,r4			(Branch -> Slope Mod = Y Slope * 12 * Halves / 28)
0007caf4: 1040012a beq r2,r0,0x0007cfa0		Branch if X Slope >= Y Slope
0007caf8: 00071040 sll r2,r7,0x01		(X Mod - X * 28) * 2
0007cafc: 0801f3ea j 0x0007cfa8			(Else -> Slope Mod = X Slope * 12 * Halves / 28)
0007cb00: 00471021 addu r2,r2,r7		(X Mod - X * 28) * 3

• Slope Type = 0x11*

0007cb04: 96020000 lhu r2,0x0000(r16)		Load X Mod
0007cb08: 00000000 nop
0007cb0c: 00021400 sll r2,r2,0x10
0007cb10: 00022403 sra r4,r2,0x10
0007cb14: 00910018 mult r4,r17			X Mod * -3 / 7
0007cb18: 96060004 lhu r6,0x0004(r16)		Load Y Mod
0007cb1c: 00001810 mfhi r3
0007cb20: 00063400 sll r6,r6,0x10
0007cb24: 00062c03 sra r5,r6,0x10
0007cb28: 00b10018 mult r5,r17			Y Mod * -3 / 7
0007cb2c: 000217c3 sra r2,r2,0x1f
0007cb30: 000637c3 sra r6,r6,0x1f
0007cb34: 00641821 addu r3,r3,r4		X Mod * 4 / 7
0007cb38: 00031903 sra r3,r3,0x04		X = X Mod / 28
0007cb3c: 00621823 subu r3,r3,r2
0007cb40: 000310c0 sll r2,r3,0x03		X * 8
0007cb44: 00431023 subu r2,r2,r3		X * 7
0007cb48: 00021080 sll r2,r2,0x02		X * 28
0007cb4c: 00822023 subu r4,r4,r2		X Slope = X Mod - X * 28
0007cb50: 00042400 sll r4,r4,0x10
0007cb54: 00043c03 sra r7,r4,0x10
0007cb58: 00001010 mfhi r2
0007cb5c: 00451021 addu r2,r2,r5		Y Mod * 4 / 7
0007cb60: 00021103 sra r2,r2,0x04		Y = Y Mod / 28
0007cb64: 00461023 subu r2,r2,r6
0007cb68: 000218c0 sll r3,r2,0x03		Y * 8
0007cb6c: 00621823 subu r3,r3,r2		Y * 7
0007cb70: 00031880 sll r3,r3,0x02		Y * 28
0007cb74: 00a32823 subu r5,r5,r3		Y Slope = Y Mod - Y * 28
0007cb78: 00052c00 sll r5,r5,0x10
0007cb7c: 00052c03 sra r5,r5,0x10
0007cb80: 3402001c ori r2,r0,0x001c		r2 = 28
0007cb84: 00452023 subu r4,r2,r5		28 - Y Slope
0007cb88: 00e4102a slt r2,r7,r4			(Favors higher Y Slope)
0007cb8c: 14400004 bne r2,r0,0x0007cba0		Branch if X Slope < (28 - Y Slope)
0007cb90: 00000000 nop
0007cb94: 00051040 sll r2,r5,0x01		Y Slope * 2
0007cb98: 0801f3d7 j 0x0007cf5c			(Slope Mod = Halves * 12 - (Y Slope * 12 * Halves / 28))
0007cb9c: 00451021 addu r2,r2,r5		Y Slope * 3
0007cba0: 00071040 sll r2,r7,0x01		X Slope * 2
0007cba4: 0801f3ea j 0x0007cfa8			(Slope Mod = X Slope * 12 * Halves / 28)
0007cba8: 00471021 addu r2,r2,r7		X Slope * 3

• Slope Type = 0x14*

0007cbac: 96020000 lhu r2,0x0000(r16)		Load X Mod
0007cbb0: 00000000 nop
0007cbb4: 00021400 sll r2,r2,0x10
0007cbb8: 00022403 sra r4,r2,0x10
0007cbbc: 00910018 mult r4,r17			X Mod * -3 / 7
0007cbc0: 96060004 lhu r6,0x0004(r16)		Load Y Mod
0007cbc4: 00000000 nop
0007cbc8: 00063400 sll r6,r6,0x10
0007cbcc: 00062c03 sra r5,r6,0x10
0007cbd0: 00001810 mfhi r3
0007cbd4: 000217c3 sra r2,r2,0x1f
0007cbd8: 000637c3 sra r6,r6,0x1f
0007cbdc: 00b10018 mult r5,r17			Y Mod * -3 / 7
0007cbe0: 00641821 addu r3,r3,r4		X Mod * 4 / 7
0007cbe4: 00031903 sra r3,r3,0x04		X = X Mod / 28
0007cbe8: 00621823 subu r3,r3,r2
0007cbec: 000310c0 sll r2,r3,0x03		X * 8
0007cbf0: 00431023 subu r2,r2,r3		X * 7
0007cbf4: 00021080 sll r2,r2,0x02		X * 28
0007cbf8: 00822023 subu r4,r4,r2		X Slope = X Mod - X * 28
0007cbfc: 00042400 sll r4,r4,0x10
0007cc00: 00044403 sra r8,r4,0x10
0007cc04: 3404001c ori r4,r0,0x001c		r4 = 28
0007cc08: 00883823 subu r7,r4,r8		28 - X Slope
0007cc0c: 00001010 mfhi r2
0007cc10: 00451021 addu r2,r2,r5		Y Mod * 4 / 7
0007cc14: 00021103 sra r2,r2,0x04		Y = Y Mod / 28
0007cc18: 00461023 subu r2,r2,r6
0007cc1c: 000218c0 sll r3,r2,0x03		Y * 8
0007cc20: 00621823 subu r3,r3,r2		Y * 7
0007cc24: 00031880 sll r3,r3,0x02		Y * 28
0007cc28: 00a32823 subu r5,r5,r3		Y Slope = Y Mod - Y * 28
0007cc2c: 00052c00 sll r5,r5,0x10
0007cc30: 00052c03 sra r5,r5,0x10		(Favors highest Slope)
0007cc34: 00852023 subu r4,r4,r5		28 - Y Slope
0007cc38: 00e4102a slt r2,r7,r4			(Branch -> Slope Mod = Halves * 12 - (X Slope * 12 * Halves / 28))
0007cc3c: 144000c5 bne r2,r0,0x0007cf54		Branch if (28 - X Slope) < (28 - Y Slope)
0007cc40: 00051040 sll r2,r5,0x01		Y Slope * 2
0007cc44: 0801f3d7 j 0x0007cf5c			(Else -> Slope Mod = Halves * 12 - (Y Slope * 12 * Halves / 28))
0007cc48: 00451021 addu r2,r2,r5		Y Slope * 3

• Slope Type = 0x44*

0007cc4c: 96020000 lhu r2,0x0000(r16)		Load X Mod
0007cc50: 00000000 nop
0007cc54: 00021400 sll r2,r2,0x10
0007cc58: 00022403 sra r4,r2,0x10
0007cc5c: 00910018 mult r4,r17			X Mod * -3 / 7
0007cc60: 96060004 lhu r6,0x0004(r16)		Load Y Mod
0007cc64: 00000000 nop
0007cc68: 00063400 sll r6,r6,0x10
0007cc6c: 00062c03 sra r5,r6,0x10
0007cc70: 00001810 mfhi r3
0007cc74: 000217c3 sra r2,r2,0x1f
0007cc78: 000637c3 sra r6,r6,0x1f
0007cc7c: 00b10018 mult r5,r17			Y Mod * -3 / 7
0007cc80: 00641821 addu r3,r3,r4		X Mod * 4 / 7
0007cc84: 00031903 sra r3,r3,0x04		X = X Mod / 28
0007cc88: 00621823 subu r3,r3,r2
0007cc8c: 000310c0 sll r2,r3,0x03		X * 8
0007cc90: 00431023 subu r2,r2,r3		X * 7
0007cc94: 00021080 sll r2,r2,0x02		X * 28
0007cc98: 00822023 subu r4,r4,r2		X Slope = X Mod - X * 28
0007cc9c: 00042400 sll r4,r4,0x10
0007cca0: 00044403 sra r8,r4,0x10
0007cca4: 3402001c ori r2,r0,0x001c		r2 = 28
0007cca8: 00483823 subu r7,r2,r8		28 - X Slope
0007ccac: 00001010 mfhi r2
0007ccb0: 00451021 addu r2,r2,r5		Y Mod * 4 / 7
0007ccb4: 00021103 sra r2,r2,0x04		Y = Y Mod / 28
0007ccb8: 00461023 subu r2,r2,r6
0007ccbc: 000218c0 sll r3,r2,0x03		Y * 8
0007ccc0: 00621823 subu r3,r3,r2		Y * 7
0007ccc4: 00031880 sll r3,r3,0x02		Y * 28
0007ccc8: 00a32823 subu r5,r5,r3		Y Slope = Y Mod - Y * 28
0007cccc: 00052c00 sll r5,r5,0x10
0007ccd0: 00052403 sra r4,r5,0x10		(Favors higher X Result)
0007ccd4: 00e4102a slt r2,r7,r4			(Branch -> Slope Mod = Y Slope * 12 * Halves / 28)
0007ccd8: 104000b2 beq r2,r0,0x0007cfa4		Branch if (28 - X Slope) >= Y Slope
0007ccdc: 00041040 sll r2,r4,0x01		Y Slope * 2
0007cce0: 0801f3d6 j 0x0007cf58			(Else -> Slope Mod = Halves * 12 - (X Slope * 12 * Halves / 28))
0007cce4: 00081040 sll r2,r8,0x01		X Slope * 2

• Slope Type = 0x96*

0007cce8: 96020000 lhu r2,0x0000(r16)		Load X Mod
0007ccec: 00000000 nop
0007ccf0: 00021400 sll r2,r2,0x10
0007ccf4: 00022403 sra r4,r2,0x10
0007ccf8: 00910018 mult r4,r17			X Mod * -3 / 7
0007ccfc: 96060004 lhu r6,0x0004(r16)		Load Y Mod
0007cd00: 00001810 mfhi r3
0007cd04: 00063400 sll r6,r6,0x10
0007cd08: 00062c03 sra r5,r6,0x10
0007cd0c: 00b10018 mult r5,r17			Y Mod * -3 / 7
0007cd10: 000217c3 sra r2,r2,0x1f
0007cd14: 000637c3 sra r6,r6,0x1f
0007cd18: 00641821 addu r3,r3,r4		X Mod * 4 / 7
0007cd1c: 00031903 sra r3,r3,0x04		X = X Mod / 28
0007cd20: 00621823 subu r3,r3,r2
0007cd24: 000310c0 sll r2,r3,0x03		X * 8
0007cd28: 00431023 subu r2,r2,r3		X * 7
0007cd2c: 00021080 sll r2,r2,0x02		X * 28
0007cd30: 00822023 subu r4,r4,r2		X Slope = X Mod - X * 28
0007cd34: 00042400 sll r4,r4,0x10
0007cd38: 00043c03 sra r7,r4,0x10
0007cd3c: 00001010 mfhi r2
0007cd40: 00451021 addu r2,r2,r5		Y Mod * 4 / 7
0007cd44: 00021103 sra r2,r2,0x04		Y = Y Mod / 28
0007cd48: 00461023 subu r2,r2,r6
0007cd4c: 000218c0 sll r3,r2,0x03		Y * 8
0007cd50: 00621823 subu r3,r3,r2		Y * 7
0007cd54: 00031880 sll r3,r3,0x02		Y * 28
0007cd58: 00a32823 subu r5,r5,r3		Y Slope = Y Mod - Y * 28
0007cd5c: 00052c00 sll r5,r5,0x10
0007cd60: 00052403 sra r4,r5,0x10		(Favors highest Slope)
0007cd64: 00e4102a slt r2,r7,r4			(Branch -> Slope Mod = Y Slope * 12 * Halves / 28)
0007cd68: 1440008d bne r2,r0,0x0007cfa0		Branch if X Slope < Y Slope
0007cd6c: 00071040 sll r2,r7,0x01		X Slope * 2
0007cd70: 0801f3ea j 0x0007cfa8			(Else -> Slope Mod = X Slope * 12 * Halves / 28)
0007cd74: 00471021 addu r2,r2,r7		X Slope * 3

• Slope Type = 0x66*

0007cd78: 96020000 lhu r2,0x0000(r16)		Load X Mod
0007cd7c: 00000000 nop
0007cd80: 00021400 sll r2,r2,0x10
0007cd84: 00022403 sra r4,r2,0x10
0007cd88: 00910018 mult r4,r17			X Mod * -3 / 7
0007cd8c: 96060004 lhu r6,0x0004(r16)		Load Y Mod
0007cd90: 00001810 mfhi r3
0007cd94: 00063400 sll r6,r6,0x10
0007cd98: 00062c03 sra r5,r6,0x10
0007cd9c: 00b10018 mult r5,r17			Load Y * -3 / 7
0007cda0: 000217c3 sra r2,r2,0x1f
0007cda4: 000637c3 sra r6,r6,0x1f
0007cda8: 00641821 addu r3,r3,r4		X Mod * 4 / 7
0007cdac: 00031903 sra r3,r3,0x04		X = X Mod / 28
0007cdb0: 00621823 subu r3,r3,r2
0007cdb4: 000310c0 sll r2,r3,0x03		X * 8
0007cdb8: 00431023 subu r2,r2,r3		X * 7
0007cdbc: 00021080 sll r2,r2,0x02		X * 28
0007cdc0: 00822023 subu r4,r4,r2		X Slope = X Mod - X * 28
0007cdc4: 00042400 sll r4,r4,0x10
0007cdc8: 00043c03 sra r7,r4,0x10
0007cdcc: 00001010 mfhi r2
0007cdd0: 00451021 addu r2,r2,r5		Y Mod * 4 / 7
0007cdd4: 00021103 sra r2,r2,0x04		Y = Y Mod / 28
0007cdd8: 00461023 subu r2,r2,r6
0007cddc: 000218c0 sll r3,r2,0x03		Y * 8
0007cde0: 00621823 subu r3,r3,r2		Y * 7
0007cde4: 00031880 sll r3,r3,0x02		Y * 28
0007cde8: 00a32823 subu r5,r5,r3		Y Slope = Y Mod - Y * 28
0007cdec: 00052c00 sll r5,r5,0x10
0007cdf0: 00052c03 sra r5,r5,0x10
0007cdf4: 3402001c ori r2,r0,0x001c		r2 = 28
0007cdf8: 00452023 subu r4,r2,r5		28 - Y Slope
0007cdfc: 00e4102a slt r2,r7,r4			(Favors lower X Slope)
0007ce00: 14400004 bne r2,r0,0x0007ce14		Branch if X Slope < (28 - Y Slope)
0007ce04: 00000000 nop
0007ce08: 00071040 sll r2,r7,0x01		X Slope * 2
0007ce0c: 0801f3ea j 0x0007cfa8			(Slope Mod = X Slope * 12 * Halves / 28)
0007ce10: 00471021 addu r2,r2,r7		X Slope * 3
0007ce14: 00051040 sll r2,r5,0x01		Y Slope * 2
0007ce18: 0801f3d7 j 0x0007cf5c			(Slope Mod = Halves * 12 - (Y Slope * 12 * Halves / 28))
0007ce1c: 00451021 addu r2,r2,r5		Y Slope * 3

• Slope Type = 0x69*

0007ce20: 96020000 lhu r2,0x0000(r16)		Load X Mod
0007ce24: 00000000 nop
0007ce28: 00021400 sll r2,r2,0x10
0007ce2c: 00022403 sra r4,r2,0x10
0007ce30: 00910018 mult r4,r17			X Mod * -3 / 7
0007ce34: 96060004 lhu r6,0x0004(r16)		Load Y Mod
0007ce38: 00000000 nop
0007ce3c: 00063400 sll r6,r6,0x10
0007ce40: 00062c03 sra r5,r6,0x10
0007ce44: 00001810 mfhi r3
0007ce48: 000217c3 sra r2,r2,0x1f
0007ce4c: 000637c3 sra r6,r6,0x1f
0007ce50: 00b10018 mult r5,r17			Y Mod * -3 / 7
0007ce54: 00641821 addu r3,r3,r4		X Mod * 4 / 7
0007ce58: 00031903 sra r3,r3,0x04		X = X Mod / 28
0007ce5c: 00621823 subu r3,r3,r2
0007ce60: 000310c0 sll r2,r3,0x03		X * 8
0007ce64: 00431023 subu r2,r2,r3		X * 7
0007ce68: 00021080 sll r2,r2,0x02		X * 28
0007ce6c: 00822023 subu r4,r4,r2		X Slope = X Mod - X * 28
0007ce70: 00042400 sll r4,r4,0x10
0007ce74: 00044403 sra r8,r4,0x10
0007ce78: 3404001c ori r4,r0,0x001c		r4 = 28
0007ce7c: 00883823 subu r7,r4,r8		28 - X Slope
0007ce80: 00001010 mfhi r2
0007ce84: 00451021 addu r2,r2,r5		Y Mod * 4 / 7
0007ce88: 00021103 sra r2,r2,0x04		Y = Y Mod / 28
0007ce8c: 00461023 subu r2,r2,r6
0007ce90: 000218c0 sll r3,r2,0x03		Y * 8
0007ce94: 00621823 subu r3,r3,r2		Y * 7
0007ce98: 00031880 sll r3,r3,0x02		Y * 28
0007ce9c: 00a32823 subu r5,r5,r3		Y Slope = Y Mod - Y * 28
0007cea0: 00052c00 sll r5,r5,0x10
0007cea4: 00052c03 sra r5,r5,0x10		(Favors lowest Slope)
0007cea8: 00852023 subu r4,r4,r5		28 - Y Slope
0007ceac: 00e4102a slt r2,r7,r4			(Branch -> Slope Mod = Halves * 12 - (X Slope * 12 * Halves / 28))
0007ceb0: 10400028 beq r2,r0,0x0007cf54		Branch if (28 - X Slope) >= (28 - Y Slope)
0007ceb4: 00051040 sll r2,r5,0x01		Y Slope * 2
0007ceb8: 0801f3d7 j 0x0007cf5c			(Else -> Slope Mod = Halves * 12 - (Y Slope * 12 * Halves / 28))
0007cebc: 00451021 addu r2,r2,r5		Y Slope * 3

• Slope Type = 0x99*

0007cec0: 96020000 lhu r2,0x0000(r16)		Load X Mod
0007cec4: 00000000 nop
0007cec8: 00021400 sll r2,r2,0x10
0007cecc: 00022403 sra r4,r2,0x10
0007ced0: 00910018 mult r4,r17			X Mod * -3 / 7
0007ced4: 96060004 lhu r6,0x0004(r16)		Load Y Mod
0007ced8: 00000000 nop
0007cedc: 00063400 sll r6,r6,0x10
0007cee0: 00062c03 sra r5,r6,0x10
0007cee4: 00001810 mfhi r3
0007cee8: 000217c3 sra r2,r2,0x1f
0007ceec: 000637c3 sra r6,r6,0x1f
0007cef0: 00b10018 mult r5,r17			Y Mod * -3 / 7
0007cef4: 00641821 addu r3,r3,r4		X Mod * 4 / 7
0007cef8: 00031903 sra r3,r3,0x04		X = X Mod / 28
0007cefc: 00621823 subu r3,r3,r2
0007cf00: 000310c0 sll r2,r3,0x03		X * 8
0007cf04: 00431023 subu r2,r2,r3		X * 7
0007cf08: 00021080 sll r2,r2,0x02		X * 28
0007cf0c: 00822023 subu r4,r4,r2		X Slope = X Mod - X * 28
0007cf10: 00042400 sll r4,r4,0x10
0007cf14: 00044403 sra r8,r4,0x10
0007cf18: 3402001c ori r2,r0,0x001c		r2 = 28
0007cf1c: 00483823 subu r7,r2,r8		28 - X Slope
0007cf20: 00001010 mfhi r2
0007cf24: 00451021 addu r2,r2,r5		Y Mod * 4 / 7
0007cf28: 00021103 sra r2,r2,0x04		Y = Y Mod / 28
0007cf2c: 00461023 subu r2,r2,r6
0007cf30: 000218c0 sll r3,r2,0x03		Y * 8
0007cf34: 00621823 subu r3,r3,r2		Y * 7
0007cf38: 00031880 sll r3,r3,0x02		Y * 28
0007cf3c: 00a32823 subu r5,r5,r3		Y Slope = Y Mod - Y * 28
0007cf40: 00052c00 sll r5,r5,0x10
0007cf44: 00052403 sra r4,r5,0x10		(Favors lower Y Slope)
0007cf48: 00e4102a slt r2,r7,r4			(Branch -> Slope Mod = Y Slope * 12 * Halves / 28)
0007cf4c: 14400015 bne r2,r0,0x0007cfa4		Branch if (28 - X Slope) < Y Slope
0007cf50: 00041040 sll r2,r4,0x01		Y Slope * 2
0007cf54: 00081040 sll r2,r8,0x01		X Slope * 2
0007cf58: 00481021 addu r2,r2,r8		X Slope * 3
0007cf5c: 00021080 sll r2,r2,0x02		X Slope * 12
0007cf60: 00490018 mult r2,r9			X Slope * 12 * Halves
0007cf64: 00002012 mflo r4
0007cf68: 00000000 nop
0007cf6c: 00000000 nop
0007cf70: 00910018 mult r4,r17			X Slope * 12 * Halves * -3 / 7
0007cf74: 00091840 sll r3,r9,0x01		Halves * 2
0007cf78: 00691821 addu r3,r3,r9		Halves * 3
0007cf7c: 00031880 sll r3,r3,0x02		Halves * 12
0007cf80: 00001010 mfhi r2
0007cf84: 00441021 addu r2,r2,r4		X Slope * 12 * Halves * 4 / 7
0007cf88: 00021103 sra r2,r2,0x04		X Slope * 12 * Halves / 28
0007cf8c: 000427c3 sra r4,r4,0x1f
0007cf90: 00441023 subu r2,r2,r4
0007cf94: 00621823 subu r3,r3,r2		Slope Mod = Halves * 12 - X Slope * 12 * Halves / 28
0007cf98: 0801f3f6 j 0x0007cfd8
0007cf9c: 01432023 subu r4,r10,r3		Z Mod - Slope Mod
0007cfa0: 00041040 sll r2,r4,0x01		Y Slope * 2
0007cfa4: 00441021 addu r2,r2,r4		Y Slope * 3
0007cfa8: 00021080 sll r2,r2,0x02		Y Slope * 12
0007cfac: 00490018 mult r2,r9			Y Slope * 12 * Halves
0007cfb0: 00001812 mflo r3
0007cfb4: 00000000 nop
0007cfb8: 00000000 nop
0007cfbc: 00710018 mult r3,r17			Y Slope * 12 * Halves * -3 / 7
0007cfc0: 00001010 mfhi r2
0007cfc4: 00431021 addu r2,r2,r3		Y Slope * 12 * Halves * 4 / 7
0007cfc8: 00021103 sra r2,r2,0x04		Slope Mod = Y Slope * 12 * Halves / 28
0007cfcc: 00031fc3 sra r3,r3,0x1f
0007cfd0: 00431023 subu r2,r2,r3
0007cfd4: 01422023 subu r4,r10,r2		Z Mod -= Slope Mod
0007cfd8: 00041400 sll r2,r4,0x10
0007cfdc: 00021403 sra r2,r2,0x10		r2 = Z Mod
0007cfe0: 8fbf0020 lw r31,0x0020(r29)
0007cfe4: 8fb1001c lw r17,0x001c(r29)
0007cfe8: 8fb00018 lw r16,0x0018(r29)
0007cfec: 27bd0028 addiu r29,r29,0x0028
0007cff0: 03e00008 jr r31
0007cff4: 00000000 nop