Mercurial > repos > blastem
annotate gen.c @ 1466:f2ee46d08b01
Push correct PC onto stack on divide by zero for pc-relative case
author | Michael Pavone <pavone@retrodev.com> |
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date | Wed, 13 Sep 2017 21:13:11 -0700 |
parents | a7774fc2de4b |
children |
rev | line source |
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563
c8fefa140c80
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1 #include <stdio.h> |
c8fefa140c80
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
2 #include <stdlib.h> |
c8fefa140c80
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
3 #include "gen.h" |
c8fefa140c80
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
4 #include "mem.h" |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
563
diff
changeset
|
5 #include "util.h" |
563
c8fefa140c80
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
6 |
c8fefa140c80
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
7 void init_code_info(code_info *code) |
c8fefa140c80
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
8 { |
c8fefa140c80
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
9 size_t size = CODE_ALLOC_SIZE; |
c8fefa140c80
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
10 code->cur = alloc_code(&size); |
c8fefa140c80
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
11 if (!code->cur) { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
563
diff
changeset
|
12 fatal_error("Failed to allocate memory for generated code\n"); |
563
c8fefa140c80
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
13 } |
c8fefa140c80
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
14 code->last = code->cur + size/sizeof(code_word) - RESERVE_WORDS; |
894
a7774fc2de4b
Partially working change to do proper stack alignment rather than doing a lame alignment check when calling a C compile dfunction. 68K core seems okay, but Z80 is busted.
Michael Pavone <pavone@retrodev.com>
parents:
792
diff
changeset
|
15 code->stack_off = 0; |
563
c8fefa140c80
Moved some generic stuff from backend.h gen_arm.h and gen_arm.c into gen.h and gen.c. Added a couple fields to cpu_options so that gen_mem_fun can be made guest CPU generic
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
16 } |