forked from Lephenixnoir/fxdoc
organize disassemblies of fx@3.10
This commit is contained in:
parent
c70d17018f
commit
0384bc38aa
GPG Key ID:
1BBA026E13FC0495
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@ -1,45 +0,0 @@
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Syscall %ac9 longjmp() from Graph 35+E II OS 3.10
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Restores the whole jump buffer, except for r0 which is the return code anyway.
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Performs rts to the saved value of pr, effectively jumping to the setjmp() call
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site.
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Discovered RAM memory:
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0x880287e4 Temporary storage for the return code of longjmp()
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<%ac9>
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801e3e7c: d011 mov.l 0x880287e4, r0
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801e3e7e: 2052 mov.l r5, @r0
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801e3e80: 7434 add #52, r4
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801e3e82: 5046 mov.l @(24,r4), r0
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801e3e84: 401e ldc r0, gbr
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801e3e86: 5045 mov.l @(20,r4), r0
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801e3e88: 401a lds r0, macl
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801e3e8a: 5044 mov.l @(16,r4), r0
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801e3e8c: 400a lds r0, mach
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801e3e8e: 5142 mov.l @(8,r4), r1
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801e3e90: 5241 mov.l @(4,r4), r2
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801e3e92: 6342 mov.l @r4, r3
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801e3e94: 74cc add #-52, r4
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801e3e96: 554b mov.l @(44,r4), r5
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801e3e98: 564a mov.l @(40,r4), r6
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801e3e9a: 5749 mov.l @(36,r4), r7
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801e3e9c: 5848 mov.l @(32,r4), r8
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801e3e9e: 5947 mov.l @(28,r4), r9
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801e3ea0: 5a46 mov.l @(24,r4), r10
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801e3ea2: 5b45 mov.l @(20,r4), r11
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801e3ea4: 5c44 mov.l @(16,r4), r12
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801e3ea6: 5d43 mov.l @(12,r4), r13
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801e3ea8: 5e41 mov.l @(4,r4), r14
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801e3eaa: 6043 mov r4, r0
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801e3eac: 540c mov.l @(48,r0), r4
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801e3eae: 6f02 mov.l @r0, r15
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801e3eb0: 5002 mov.l @(8,r0), r0
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801e3eb2: 402a lds r0, pr
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801e3eb4: d003 mov.l 0x880287e4, r0
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801e3eb6: 6002 mov.l @r0, r0
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801e3eb8: 8800 cmp/eq #0, r0
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801e3eba: 8b00 bf <801e3ebe>
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801e3ebc: e001 mov #1, r0
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801e3ebe: 000b rts
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801e3ec0: 0009 nop
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@ -1,40 +0,0 @@
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Syscall %aca setjmp() from Graph 35+E II OS 3.10
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An implementation of setjmp() using an 80-byte CPU context buffer. The
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corresponding longjump() function is %ac9.
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Shape of the CPU context structure:
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(+0) r15 r14 pr r13 r12 r11 r10 r9 r8 r7 r6 r5
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(+48) r4 r3 r2 r1 r0 mach macl gbr
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Total size: 80 bytes
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<%aca>
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801e3ec8: 24f2 mov.l r15, @r4
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801e3eca: 14e1 mov.l r14, @(4,r4)
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801e3ecc: 0e2a sts pr, r14
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801e3ece: 14e2 mov.l r14, @(8,r4)
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801e3ed0: 5e41 mov.l @(4,r4), r14
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801e3ed2: 14d3 mov.l r13, @(12,r4)
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801e3ed4: 14c4 mov.l r12, @(16,r4)
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801e3ed6: 14b5 mov.l r11, @(20,r4)
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801e3ed8: 14a6 mov.l r10, @(24,r4)
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801e3eda: 1497 mov.l r9, @(28,r4)
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801e3edc: 1488 mov.l r8, @(32,r4)
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801e3ede: 1479 mov.l r7, @(36,r4)
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801e3ee0: 146a mov.l r6, @(40,r4)
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801e3ee2: 145b mov.l r5, @(44,r4)
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801e3ee4: 144c mov.l r4, @(48,r4)
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801e3ee6: 7430 add #48, r4
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801e3ee8: 1431 mov.l r3, @(4,r4)
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801e3eea: 1422 mov.l r2, @(8,r4)
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801e3eec: 1413 mov.l r1, @(12,r4)
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801e3eee: 1404 mov.l r0, @(16,r4)
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801e3ef0: 000a sts mach, r0
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801e3ef2: 1405 mov.l r0, @(20,r4)
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801e3ef4: 001a sts macl, r0
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801e3ef6: 1406 mov.l r0, @(24,r4)
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801e3ef8: 0012 stc gbr, r0
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801e3efa: 1407 mov.l r0, @(28,r4)
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801e3efc: 6442 mov.l @r4, r4
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801e3efe: 000b rts
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801e3f00: e000 mov #0, r0
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@ -0,0 +1,102 @@
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Syscall %03b RTC_GetTicks() from Graph 35+E II OS 3.10
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<%03b RTC_GetTicks>
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Returns the number of 128-Hz ticks elapsed since midnight.
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r0: Number of ticks (between 0 and 11059200)
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80013c80: 2f86 mov.l r8, @-r15
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80013c82: 2f96 mov.l r9, @-r15
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80013c84: 2fa6 mov.l r10, @-r15
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80013c86: 2fb6 mov.l r11, @-r15
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80013c88: 2fc6 mov.l r12, @-r15
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80013c8a: 2fd6 mov.l r13, @-r15
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80013c8c: 4f12 sts.l macl, @-r15
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# r9 is 128*60*60, ie. the number of ticks per hour
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80013c8e: db79 mov.l 0xa413fedc RTC.RCR1, r11
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80013c90: ecfc mov #-4, r12
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80013c92: e807 mov #7, r8
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80013c94: d978 mov.l 0x00070800, r9
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80013c96: 6db3 mov r11, r13
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80013c98: 7de4 add #-28, r13
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# Clear the carry flag and carry interrupt in RCR1
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80013c9a: 67b0 mov.b @r11, r7
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80013c9c: 6073 mov r7, r0
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80013c9e: c909 and #9, r0
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80013ca0: 6a03 mov r0, r10
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80013ca2: 2ba0 mov.b r10, @r11
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# r5 = RSECCNT (binary) * 128 + R64CNT
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80013ca4: 61d0 mov.b @r13, r1
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80013ca6: 84d2 mov.b @(2,r13), r0
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80013ca8: 631c extu.b r1, r3
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80013caa: 6403 mov r0, r4
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80013cac: c970 and #112, r0
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80013cae: 40cc shad r12, r0
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80013cb0: 6503 mov r0, r5
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80013cb2: 4508 shll2 r5
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80013cb4: 350c add r0, r5
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80013cb6: 6043 mov r4, r0
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80013cb8: 4500 shll r5
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80013cba: c90f and #15, r0
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80013cbc: 350c add r0, r5
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80013cbe: 84d4 mov.b @(4,r13), r0
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80013cc0: 458d shld r8, r5
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80013cc2: 353c add r3, r5
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# r6 = RMINCNT (binary)
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80013cc4: 6603 mov r0, r6
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80013cc6: 6203 mov r0, r2
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80013cc8: 84d6 mov.b @(6,r13), r0
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80013cca: 6103 mov r0, r1
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80013ccc: 6063 mov r6, r0
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80013cce: c970 and #112, r0
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80013cd0: 40cc shad r12, r0
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80013cd2: 6603 mov r0, r6
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80013cd4: 4608 shll2 r6
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80013cd6: 360c add r0, r6
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80013cd8: 6023 mov r2, r0
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80013cda: 4600 shll r6
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80013cdc: c90f and #15, r0
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80013cde: 360c add r0, r6
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# r2 = RHRCNT (binary), r4 = r6 * (60*128)
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80013ce0: 6013 mov r1, r0
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80013ce2: c930 and #48, r0
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80013ce4: 6463 mov r6, r4
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80013ce6: 40cc shad r12, r0
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80013ce8: 4408 shll2 r4
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80013cea: 4408 shll2 r4
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80013cec: 6203 mov r0, r2
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80013cee: 3468 sub r6, r4
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80013cf0: 4208 shll2 r2
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80013cf2: 4418 shll8 r4
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80013cf4: 320c add r0, r2
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80013cf6: 6013 mov r1, r0
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80013cf8: 4400 shll r4
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80013cfa: 4200 shll r2
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80013cfc: c90f and #15, r0
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80013cfe: 320c add r0, r2
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# Combine these together to form the number of ticks elapsed since midnight:
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# r4 = 60*60*128*RHRCNT + 60*128*RMINCNT + 128*RSECCNT + R64CNT (binary)
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# Restart if the carry is set.
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80013d00: 60b0 mov.b @r11, r0
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80013d02: 0927 mul.l r2, r9
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80013d04: c880 tst #-128, r0
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80013d06: 345c add r5, r4
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80013d08: 051a sts macl, r5
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80013d0a: 8fca bf.s <80013ca2>
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80013d0c: 345c add r5, r4
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80013d0e: 2b70 mov.b r7, @r11
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80013d10: 6043 mov r4, r0
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80013d12: 4f16 lds.l @r15+, macl
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80013d14: 6df6 mov.l @r15+, r13
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80013d16: 6cf6 mov.l @r15+, r12
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80013d18: 6bf6 mov.l @r15+, r11
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80013d1a: 6af6 mov.l @r15+, r10
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80013d1c: 69f6 mov.l @r15+, r9
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80013d1e: 000b rts
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80013d20: 68f6 mov.l @r15+, r8
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@ -0,0 +1,48 @@
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Syscall %ac9 longjmp() from Graph 35+E II OS 3.10
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Restores the whole jump buffer, except for r0 which is the return code anyway.
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Performs rts to the saved value of pr, effectively jumping to the setjmp() call
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site.
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Discovered RAM memory:
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0x880287e4 Temporary storage for the return code of longjmp()
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<%ac9 longjmp>
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r4: Jump buffer
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r5: Return value (cannot be 0 as it would confuse setjmp)
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801e3e7c: d011 mov.l 0x880287e4, r0
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801e3e7e: 2052 mov.l r5, @r0
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801e3e80: 7434 add #52, r4
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801e3e82: 5046 mov.l @(24,r4), r0
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801e3e84: 401e ldc r0, gbr
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801e3e86: 5045 mov.l @(20,r4), r0
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801e3e88: 401a lds r0, macl
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801e3e8a: 5044 mov.l @(16,r4), r0
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801e3e8c: 400a lds r0, mach
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801e3e8e: 5142 mov.l @(8,r4), r1
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801e3e90: 5241 mov.l @(4,r4), r2
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801e3e92: 6342 mov.l @r4, r3
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801e3e94: 74cc add #-52, r4
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801e3e96: 554b mov.l @(44,r4), r5
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801e3e98: 564a mov.l @(40,r4), r6
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801e3e9a: 5749 mov.l @(36,r4), r7
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801e3e9c: 5848 mov.l @(32,r4), r8
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801e3e9e: 5947 mov.l @(28,r4), r9
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801e3ea0: 5a46 mov.l @(24,r4), r10
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801e3ea2: 5b45 mov.l @(20,r4), r11
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801e3ea4: 5c44 mov.l @(16,r4), r12
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801e3ea6: 5d43 mov.l @(12,r4), r13
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801e3ea8: 5e41 mov.l @(4,r4), r14
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801e3eaa: 6043 mov r4, r0
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801e3eac: 540c mov.l @(48,r0), r4
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801e3eae: 6f02 mov.l @r0, r15
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801e3eb0: 5002 mov.l @(8,r0), r0
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801e3eb2: 402a lds r0, pr
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801e3eb4: d003 mov.l 0x880287e4, r0
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801e3eb6: 6002 mov.l @r0, r0
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801e3eb8: 8800 cmp/eq #0, r0
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801e3eba: 8b00 bf <801e3ebe>
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801e3ebc: e001 mov #1, r0
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801e3ebe: 000b rts
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801e3ec0: 0009 nop
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@ -0,0 +1,42 @@
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Syscall %aca setjmp() from Graph 35+E II OS 3.10
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An implementation of setjmp() using an 80-byte CPU context buffer. The
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corresponding longjump() function is %ac9.
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Shape of the CPU context structure:
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(+0) r15 r14 pr r13 r12 r11 r10 r9 r8 r7 r6 r5
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(+48) r4 r3 r2 r1 r0 mach macl gbr
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Total size: 80 bytes
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<%aca setjmp>
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r4: Jump buffer
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801e3ec8: 24f2 mov.l r15, @r4
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801e3eca: 14e1 mov.l r14, @(4,r4)
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801e3ecc: 0e2a sts pr, r14
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801e3ece: 14e2 mov.l r14, @(8,r4)
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801e3ed0: 5e41 mov.l @(4,r4), r14
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801e3ed2: 14d3 mov.l r13, @(12,r4)
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801e3ed4: 14c4 mov.l r12, @(16,r4)
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801e3ed6: 14b5 mov.l r11, @(20,r4)
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801e3ed8: 14a6 mov.l r10, @(24,r4)
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801e3eda: 1497 mov.l r9, @(28,r4)
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801e3edc: 1488 mov.l r8, @(32,r4)
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801e3ede: 1479 mov.l r7, @(36,r4)
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801e3ee0: 146a mov.l r6, @(40,r4)
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801e3ee2: 145b mov.l r5, @(44,r4)
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801e3ee4: 144c mov.l r4, @(48,r4)
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801e3ee6: 7430 add #48, r4
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801e3ee8: 1431 mov.l r3, @(4,r4)
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801e3eea: 1422 mov.l r2, @(8,r4)
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801e3eec: 1413 mov.l r1, @(12,r4)
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801e3eee: 1404 mov.l r0, @(16,r4)
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801e3ef0: 000a sts mach, r0
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801e3ef2: 1405 mov.l r0, @(20,r4)
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801e3ef4: 001a sts macl, r0
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801e3ef6: 1406 mov.l r0, @(24,r4)
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801e3ef8: 0012 stc gbr, r0
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801e3efa: 1407 mov.l r0, @(28,r4)
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801e3efc: 6442 mov.l @r4, r4
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801e3efe: 000b rts
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801e3f00: e000 mov #0, r0
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@ -1,108 +1,5 @@
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RTC functions from Graph 35+E II OS 3.10
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<%03b RTC_GetTicks>
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Returns the number of 128-Hz ticks elapsed since midnight.
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r0: Number of ticks (between 0 and 11059200)
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80013c80: 2f86 mov.l r8, @-r15
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80013c82: 2f96 mov.l r9, @-r15
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80013c84: 2fa6 mov.l r10, @-r15
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80013c86: 2fb6 mov.l r11, @-r15
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80013c88: 2fc6 mov.l r12, @-r15
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80013c8a: 2fd6 mov.l r13, @-r15
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80013c8c: 4f12 sts.l macl, @-r15
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# r9 is 128*60*60, ie. the number of ticks per hour
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80013c8e: db79 mov.l 0xa413fedc RTC.RCR1, r11
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80013c90: ecfc mov #-4, r12
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80013c92: e807 mov #7, r8
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80013c94: d978 mov.l 0x00070800, r9
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80013c96: 6db3 mov r11, r13
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80013c98: 7de4 add #-28, r13
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# Clear the carry flag and carry interrupt in RCR1
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80013c9a: 67b0 mov.b @r11, r7
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80013c9c: 6073 mov r7, r0
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80013c9e: c909 and #9, r0
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80013ca0: 6a03 mov r0, r10
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80013ca2: 2ba0 mov.b r10, @r11
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# r5 = RSECCNT (binary) * 128 + R64CNT
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80013ca4: 61d0 mov.b @r13, r1
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80013ca6: 84d2 mov.b @(2,r13), r0
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80013ca8: 631c extu.b r1, r3
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80013caa: 6403 mov r0, r4
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80013cac: c970 and #112, r0
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80013cae: 40cc shad r12, r0
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80013cb0: 6503 mov r0, r5
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80013cb2: 4508 shll2 r5
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80013cb4: 350c add r0, r5
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80013cb6: 6043 mov r4, r0
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80013cb8: 4500 shll r5
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80013cba: c90f and #15, r0
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80013cbc: 350c add r0, r5
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80013cbe: 84d4 mov.b @(4,r13), r0
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80013cc0: 458d shld r8, r5
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80013cc2: 353c add r3, r5
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# r6 = RMINCNT (binary)
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80013cc4: 6603 mov r0, r6
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80013cc6: 6203 mov r0, r2
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80013cc8: 84d6 mov.b @(6,r13), r0
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80013cca: 6103 mov r0, r1
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80013ccc: 6063 mov r6, r0
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80013cce: c970 and #112, r0
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80013cd0: 40cc shad r12, r0
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80013cd2: 6603 mov r0, r6
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80013cd4: 4608 shll2 r6
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80013cd6: 360c add r0, r6
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80013cd8: 6023 mov r2, r0
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80013cda: 4600 shll r6
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80013cdc: c90f and #15, r0
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80013cde: 360c add r0, r6
|
||||
|
||||
# r2 = RHRCNT (binary), r4 = r6 * (60*128)
|
||||
80013ce0: 6013 mov r1, r0
|
||||
80013ce2: c930 and #48, r0
|
||||
80013ce4: 6463 mov r6, r4
|
||||
80013ce6: 40cc shad r12, r0
|
||||
80013ce8: 4408 shll2 r4
|
||||
80013cea: 4408 shll2 r4
|
||||
80013cec: 6203 mov r0, r2
|
||||
80013cee: 3468 sub r6, r4
|
||||
80013cf0: 4208 shll2 r2
|
||||
80013cf2: 4418 shll8 r4
|
||||
80013cf4: 320c add r0, r2
|
||||
80013cf6: 6013 mov r1, r0
|
||||
80013cf8: 4400 shll r4
|
||||
80013cfa: 4200 shll r2
|
||||
80013cfc: c90f and #15, r0
|
||||
80013cfe: 320c add r0, r2
|
||||
|
||||
# Combine these together to form the number of ticks elapsed since midnight:
|
||||
# r4 = 60*60*128*RHRCNT + 60*128*RMINCNT + 128*RSECCNT + R64CNT (binary)
|
||||
# Restart if the carry is set.
|
||||
80013d00: 60b0 mov.b @r11, r0
|
||||
80013d02: 0927 mul.l r2, r9
|
||||
80013d04: c880 tst #-128, r0
|
||||
80013d06: 345c add r5, r4
|
||||
80013d08: 051a sts macl, r5
|
||||
80013d0a: 8fca bf.s <80013ca2>
|
||||
80013d0c: 345c add r5, r4
|
||||
80013d0e: 2b70 mov.b r7, @r11
|
||||
|
||||
80013d10: 6043 mov r4, r0
|
||||
80013d12: 4f16 lds.l @r15+, macl
|
||||
80013d14: 6df6 mov.l @r15+, r13
|
||||
80013d16: 6cf6 mov.l @r15+, r12
|
||||
80013d18: 6bf6 mov.l @r15+, r11
|
||||
80013d1a: 6af6 mov.l @r15+, r10
|
||||
80013d1c: 69f6 mov.l @r15+, r9
|
||||
80013d1e: 000b rts
|
||||
80013d20: 68f6 mov.l @r15+, r8
|
||||
|
||||
...
|
||||
|
||||
<80054456 RTC_GetRawTime>
|
||||
Gets the time into a structure of the following form, where all objects are
|
||||
written in BCD notation.
|
||||
|
|
@ -6,3 +6,6 @@ name: syscalls-lephe
|
|||
%004 tlb_init
|
||||
%025 t6k11_read_datareg
|
||||
%3fc tlb_map
|
||||
|
||||
%ac9 longjmp
|
||||
%aca setjmp
|
||||
|
|
|
|||
Loading…
Reference in New Issue