Adrian Conlon
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7c03521025
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Refactor plsu/s pshu/s to share code more easily
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-09-21 00:28:08 +01:00 |
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Adrian Conlon
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6bb8118c7f
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Add miscellaneous documentation and test gubbins
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-09-21 00:17:25 +01:00 |
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Adrian Conlon
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7adefd380a
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Sort a bunch of missing argument const specifications.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-09-21 00:16:00 +01:00 |
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Adrian Conlon
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9e91d2adad
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Plug the 8K hole in the address space of the Grant Searle SBC with 0xff (held high)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-09-16 19:49:52 +01:00 |
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Adrian Conlon
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54bb9743be
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Correct 10/11 opcode prefix disassembly on the 6809 processor.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-09-16 17:56:55 +01:00 |
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Adrian Conlon
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fe3794e011
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Simplify register16_t usage a little.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-09-16 12:00:29 +01:00 |
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Adrian Conlon
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7d840f1a42
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Modifying the manner in which memory is mapped, allows a fairly clean mechanism for loading Intel "hex" files.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-09-15 14:35:59 +01:00 |
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Adrian Conlon
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a9adde6ea5
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Correct 6809 CLR flag handling.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-30 01:37:46 +01:00 |
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Adrian Conlon
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8e0c1ebcde
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Modify the 6809 disassembler a little to give output more like xroar (for comparison purposes)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-30 01:37:09 +01:00 |
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Adrian Conlon
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c85176431b
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Refactor 6809 jsr/rts code a little. No functional changes.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-29 14:03:24 +01:00 |
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Adrian Conlon
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46b140dda1
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Correct issues with the 6809 indirect indexed addressing mode.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-29 13:25:19 +01:00 |
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Adrian Conlon
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b0addc5100
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Correct a couple of minor issues in the 6809 disassembler
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-28 18:28:00 +01:00 |
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Adrian Conlon
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52ad4e6996
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Tidied the 6809 disassembler a little.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-28 16:46:15 +01:00 |
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Adrian Conlon
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3dfea03b2e
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In theory, this finishes the 6809 disassembler.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-28 13:56:06 +01:00 |
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Adrian Conlon
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67b5fe1658
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Add two more pieces of 6809 documentation
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-28 08:30:56 +01:00 |
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Adrian Conlon
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c22b3fca3b
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Correct 6809 disassembly prefix issue.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-28 08:18:00 +01:00 |
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Adrian Conlon
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837ac495ab
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Couple more 6809 disassembly instructions added, up to the point of an instruction oddity...
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-27 23:50:18 +01:00 |
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Adrian Conlon
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ce9738eb4b
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Fill out more 6809 disassembly + fix a bug in the TFR/EXG instructions: muddled up 8/16 bit transfers.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-27 22:48:08 +01:00 |
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Adrian Conlon
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fbc743a608
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6809 Disassembly: Addressing mode: immediate byte added. More instructions decoded.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-27 13:11:43 +01:00 |
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Adrian Conlon
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dfc4c49454
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Correct 5-bit sign extension on the 6809 processor. Allows CLR 5-bit offset indexed disassembly to work correctly.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-27 12:57:44 +01:00 |
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Adrian Conlon
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2f632cdaf5
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Another 6809 instruction and addressing mode disassembly added.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-27 11:29:15 +01:00 |
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Adrian Conlon
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a5e51f7140
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Simplify the 6809 disassembler usage a little.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-27 10:43:12 +01:00 |
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Adrian Conlon
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974d5fbd14
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Only show disassembled output, when there is actually something to show (fixes 6809 startup/interrupt sequence)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-27 10:25:15 +01:00 |
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Adrian Conlon
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983e2a5eb2
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Start fleshing out the 6809 disassembler.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-27 01:19:22 +01:00 |
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Adrian Conlon
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87b7295fe8
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Remove unused "Resource" folder from the 6809 test project
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-27 01:18:49 +01:00 |
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Adrian Conlon
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2d6b9d9ecf
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Add some more 6809 documentation.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-26 19:10:04 +01:00 |
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Adrian Conlon
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e88cbc269b
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Add a skeletal half way house between a 6809 tester and a CoCo 2 emulator.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-26 19:09:34 +01:00 |
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Adrian Conlon
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a22c5a5c78
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Add skeletal disassembler to the 6809 processor.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-26 19:08:07 +01:00 |
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Adrian Conlon
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50826d36b6
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Add a little pin documentation to the 6809 processor.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-26 19:02:41 +01:00 |
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Adrian Conlon
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dc6803a5b6
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Whoops: powerOn should always be public (6809)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-26 17:27:50 +01:00 |
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Adrian Conlon
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ef5e325b6d
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Tidy 6809 header file usage a little.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-26 13:07:26 +01:00 |
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Adrian Conlon
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ab78ba5db0
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Start adding definition of BA/BS flags.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-25 14:55:57 +01:00 |
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Adrian Conlon
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ae66b39dac
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Add a couple of LIKELY/UNLIKELY specifications to the 6809 processor.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-25 12:51:43 +01:00 |
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Adrian Conlon
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c105ee37bf
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Have a stab at sorting out processor pin handling.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-25 12:09:26 +01:00 |
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Adrian Conlon
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6d4223c368
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Start moving towards reset being just another style of interrupt.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-25 01:34:30 +01:00 |
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Adrian Conlon
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bca7977a23
|
Whoops: correctly generalise DAA code on the 6809
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-24 13:05:29 +01:00 |
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Adrian Conlon
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f8097af5a4
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Whoops: correct overly enthusiastic shift on the 6809
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-24 12:57:04 +01:00 |
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Adrian Conlon
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0649796575
|
Small code tidy in the 6809
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-08-24 12:36:25 +01:00 |
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Adrian Conlon
|
adb6433737
|
Easier to read flag handling in the 6809
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-08-24 12:30:16 +01:00 |
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Adrian Conlon
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21e8360dc1
|
First stab at interrupt handling on the 6809 processor.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-24 12:14:14 +01:00 |
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Adrian Conlon
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1eb59279a8
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Remove unneeded powerOn override from the 6809 processor.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-08-24 10:54:16 +01:00 |
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Adrian Conlon
|
57928602d5
|
Tidy instruction prefixing in the 6809, such that executed/ing instruction events fire correctly.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-24 10:49:13 +01:00 |
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Adrian Conlon
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a43b1109bc
|
Add TST instruction to the 6809 processor
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-08-24 00:33:18 +01:00 |
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Adrian Conlon
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c7ca555995
|
Add various SUB/SBC instructions to the 6809 processor
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-08-24 00:14:44 +01:00 |
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Adrian Conlon
|
595a9a0af7
|
Tidy the formatting within the 6809 processor code.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-08-23 23:22:14 +01:00 |
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Adrian Conlon
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722e7b89c2
|
Add implementation of ST instruction for the 6809
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-08-23 23:09:19 +01:00 |
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Adrian Conlon
|
1e32514e1d
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Implement SEX/SWI/SWI2/SWI3/SYNC/TFR instructions for the 6809
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
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2018-08-23 14:09:46 +01:00 |
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Adrian Conlon
|
e555fe335f
|
Whoops: correct return values of 6809 branch helpers.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-08-23 09:32:37 +01:00 |
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Adrian Conlon
|
6af8641b45
|
Tidy instruction comments a little on the 6809
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-08-23 09:22:17 +01:00 |
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Adrian Conlon
|
224c254223
|
Add stubs for any remaining instruction sin the 6809 processor.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
|
2018-08-23 00:43:56 +01:00 |
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