Difference between revisions of "Cos call function"
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(Created page with "<font face='Courier New'> 0001bc28: 04810002 bgez r4,0x0001bc34 0001bc2c: 00000000 nop 0001bc30: 00042023 subu r4,r0,r4 0001bc34: 30840fff andi r4,r4,0x0fff 0001bc38: 2...") |
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<font face='Courier New'> | <font face='Courier New'> | ||
| − | 0001bc28: 04810002 bgez r4,0x0001bc34 | + | 0001bc28: 04810002 bgez r4,0x0001bc34 branch if input => 0? |
0001bc2c: 00000000 nop | 0001bc2c: 00000000 nop | ||
| − | 0001bc30: 00042023 subu r4,r0,r4 | + | 0001bc30: 00042023 subu r4,r0,r4 obtain positive |
| − | 0001bc34: 30840fff andi r4,r4,0x0fff | + | 0001bc34: 30840fff andi r4,r4,0x0fff |
| − | 0001bc38: 28820801 slti r2,r4,0x0801 | + | 0001bc38: 28820801 slti r2,r4,0x0801 r2 = true if r4 <= 0x0800 |
| − | 0001bc3c: 10400010 beq r2,r0,0x0001bc80 | + | 0001bc3c: 10400010 beq r2,r0,0x0001bc80 $Branch if > 0x800 |
| − | 0001bc40: 28820401 slti r2,r4,0x0401 | + | 0001bc40: 28820401 slti r2,r4,0x0401 |r2 = true if r4 <= 0x400 |
| − | 0001bc44: 10400008 beq r2,r0,0x0001bc68 | + | 0001bc44: 10400008 beq r2,r0,0x0001bc68 #Branch if > 0x400 |
| − | 0001bc48: 34020400 ori r2,r0,0x0400 | + | 0001bc48: 34020400 ori r2,r0,0x0400 |r2 = 0x400 |
| − | 0001bc4c: 00441023 subu r2,r2,r4 | + | 0001bc4c: 00441023 subu r2,r2,r4 |r2 = 0x400 - r4 |
| − | 0001bc50: 00021040 sll r2,r2,0x01 | + | 0001bc50: 00021040 sll r2,r2,0x01 |r2 * 2 |
| − | 0001bc54: 3c018003 lui r1,0x8003 | + | 0001bc54: 3c018003 lui r1,0x8003 | |
| − | 0001bc58: 00220821 addu r1,r1,r2 | + | 0001bc58: 00220821 addu r1,r1,r2 | |
| − | 0001bc5c: 8422b0a4 lh r2,-0x4f5c(r1) | + | 0001bc5c: 8422b0a4 lh r2,-0x4f5c(r1) |sin that shit |
| − | 0001bc60: 08006f30 j 0x0001bcc0 | + | 0001bc60: 08006f30 j 0x0001bcc0 |finish function |
| − | 0001bc64: 00000000 nop | + | 0001bc64: 00000000 nop | |
| − | 0001bc68: 00041040 sll r2,r4,0x01 | + | 0001bc68: 00041040 sll r2,r4,0x01 #r2 = r4 * 2 |
| − | 0001bc6c: 3c018003 lui r1,0x8003 | + | 0001bc6c: 3c018003 lui r1,0x8003 | |
| − | 0001bc70: 00220821 addu r1,r1,r2 | + | 0001bc70: 00220821 addu r1,r1,r2 | |
| − | 0001bc74: 8422a8a4 lh r2,-0x575c(r1) | + | 0001bc74: 8422a8a4 lh r2,-0x575c(r1) |sin that shit, but in reverse order from that above |
| − | 0001bc78: 08006f30 j 0x0001bcc0 | + | 0001bc78: 08006f30 j 0x0001bcc0 |Finish function |
| − | 0001bc7c: 00021023 subu r2,r0,r2 | + | 0001bc7c: 00021023 subu r2,r0,r2 |obtain negative |
| − | 0001bc80: 28820c01 slti r2,r4,0x0c01 | + | 0001bc80: 28820c01 slti r2,r4,0x0c01 $r2 = true if r4 <= 0x0c00 |
| − | 0001bc84: 14400007 bne r2,r0,0x0001bca4 | + | 0001bc84: 14400007 bne r2,r0,0x0001bca4 #branch if r4 <= 0x0c00 |
| − | 0001bc88: 34020c00 ori r2,r0,0x0c00 | + | 0001bc88: 34020c00 ori r2,r0,0x0c00 |r2 = 0x0c00 |
| − | 0001bc8c: 00041040 sll r2,r4,0x01 | + | 0001bc8c: 00041040 sll r2,r4,0x01 |r2 = r4 * 2 |
| − | 0001bc90: 3c018003 lui r1,0x8003 | + | 0001bc90: 3c018003 lui r1,0x8003 | |
| − | 0001bc94: 00220821 addu r1,r1,r2 | + | 0001bc94: 00220821 addu r1,r1,r2 | |
| − | 0001bc98: 842298a4 lh r2,-0x675c(r1) | + | 0001bc98: 842298a4 lh r2,-0x675c(r1) |Sin that shit |
| − | 0001bc9c: 08006f30 j 0x0001bcc0 | + | 0001bc9c: 08006f30 j 0x0001bcc0 |Finish function |
| − | 0001bca0: 00000000 nop | + | 0001bca0: 00000000 nop | |
| − | 0001bca4: 00441023 subu r2,r2,r4 | + | 0001bca4: 00441023 subu r2,r2,r4 #r2 = r4 * 2 |
| − | 0001bca8: 00021040 sll r2,r2,0x01 | + | 0001bca8: 00021040 sll r2,r2,0x01 |
| − | 0001bcac: 3c018003 lui r1,0x8003 | + | 0001bcac: 3c018003 lui r1,0x8003 |
| − | 0001bcb0: 00220821 addu r1,r1,r2 | + | 0001bcb0: 00220821 addu r1,r1,r2 |
| − | 0001bcb4: 8422b0a4 lh r2,-0x4f5c(r1) | + | 0001bcb4: 8422b0a4 lh r2,-0x4f5c(r1) trend here is that this is a sin call function. |
0001bcb8: 00000000 nop | 0001bcb8: 00000000 nop | ||
| − | 0001bcbc: 00021023 subu r2,r0,r2 | + | 0001bcbc: 00021023 subu r2,r0,r2 obtain negative r2 |
0001bcc0: 03e00008 jr r31 | 0001bcc0: 03e00008 jr r31 | ||
0001bcc4: 00000000 nop | 0001bcc4: 00000000 nop | ||
</font> | </font> | ||
Revision as of 09:58, 1 July 2021
0001bc28: 04810002 bgez r4,0x0001bc34 branch if input => 0? 0001bc2c: 00000000 nop 0001bc30: 00042023 subu r4,r0,r4 obtain positive 0001bc34: 30840fff andi r4,r4,0x0fff 0001bc38: 28820801 slti r2,r4,0x0801 r2 = true if r4 <= 0x0800 0001bc3c: 10400010 beq r2,r0,0x0001bc80 $Branch if > 0x800 0001bc40: 28820401 slti r2,r4,0x0401 |r2 = true if r4 <= 0x400 0001bc44: 10400008 beq r2,r0,0x0001bc68 #Branch if > 0x400 0001bc48: 34020400 ori r2,r0,0x0400 |r2 = 0x400 0001bc4c: 00441023 subu r2,r2,r4 |r2 = 0x400 - r4 0001bc50: 00021040 sll r2,r2,0x01 |r2 * 2 0001bc54: 3c018003 lui r1,0x8003 | 0001bc58: 00220821 addu r1,r1,r2 | 0001bc5c: 8422b0a4 lh r2,-0x4f5c(r1) |sin that shit 0001bc60: 08006f30 j 0x0001bcc0 |finish function 0001bc64: 00000000 nop | 0001bc68: 00041040 sll r2,r4,0x01 #r2 = r4 * 2 0001bc6c: 3c018003 lui r1,0x8003 | 0001bc70: 00220821 addu r1,r1,r2 | 0001bc74: 8422a8a4 lh r2,-0x575c(r1) |sin that shit, but in reverse order from that above 0001bc78: 08006f30 j 0x0001bcc0 |Finish function 0001bc7c: 00021023 subu r2,r0,r2 |obtain negative 0001bc80: 28820c01 slti r2,r4,0x0c01 $r2 = true if r4 <= 0x0c00 0001bc84: 14400007 bne r2,r0,0x0001bca4 #branch if r4 <= 0x0c00 0001bc88: 34020c00 ori r2,r0,0x0c00 |r2 = 0x0c00 0001bc8c: 00041040 sll r2,r4,0x01 |r2 = r4 * 2 0001bc90: 3c018003 lui r1,0x8003 | 0001bc94: 00220821 addu r1,r1,r2 | 0001bc98: 842298a4 lh r2,-0x675c(r1) |Sin that shit 0001bc9c: 08006f30 j 0x0001bcc0 |Finish function 0001bca0: 00000000 nop | 0001bca4: 00441023 subu r2,r2,r4 #r2 = r4 * 2 0001bca8: 00021040 sll r2,r2,0x01 0001bcac: 3c018003 lui r1,0x8003 0001bcb0: 00220821 addu r1,r1,r2 0001bcb4: 8422b0a4 lh r2,-0x4f5c(r1) trend here is that this is a sin call function. 0001bcb8: 00000000 nop 0001bcbc: 00021023 subu r2,r0,r2 obtain negative r2 0001bcc0: 03e00008 jr r31 0001bcc4: 00000000 nop
