annotate backend.c @ 1524:b96f9fae757f nuklear_ui

Fix Windows build, added Windows default_font_path implementation
author Michael Pavone <pavone@retrodev.com>
date Wed, 07 Feb 2018 00:07:12 -0800
parents 92e7dafcc0dc
children ded16f3d7eb4 1f745318f10a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
467
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents: 282
diff changeset
1 /*
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents: 282
diff changeset
2 Copyright 2013 Michael Pavone
557
acec5464fa1e Rename x86_backend.h and x86_backend.c to backend.h and backend.c respectively
Mike Pavone <pavone@retrodev.com>
parents: 467
diff changeset
3 This file is part of BlastEm.
467
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents: 282
diff changeset
4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
Mike Pavone <pavone@retrodev.com>
parents: 282
diff changeset
5 */
557
acec5464fa1e Rename x86_backend.h and x86_backend.c to backend.h and backend.c respectively
Mike Pavone <pavone@retrodev.com>
parents: 467
diff changeset
6 #include "backend.h"
235
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
7 #include <stdlib.h>
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
8
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
9 deferred_addr * defer_address(deferred_addr * old_head, uint32_t address, uint8_t *dest)
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
10 {
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
11 deferred_addr * new_head = malloc(sizeof(deferred_addr));
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
12 new_head->next = old_head;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
13 new_head->address = address & 0xFFFFFF;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
14 new_head->dest = dest;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
15 return new_head;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
16 }
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
17
282
7b8a49220e3b Remove deferred address entries from abandoned translations inside z80_retrans_inst
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
18 void remove_deferred_until(deferred_addr **head_ptr, deferred_addr * remove_to)
7b8a49220e3b Remove deferred address entries from abandoned translations inside z80_retrans_inst
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
19 {
7b8a49220e3b Remove deferred address entries from abandoned translations inside z80_retrans_inst
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
20 for(deferred_addr *cur = *head_ptr; cur && cur != remove_to; cur = *head_ptr)
7b8a49220e3b Remove deferred address entries from abandoned translations inside z80_retrans_inst
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
21 {
7b8a49220e3b Remove deferred address entries from abandoned translations inside z80_retrans_inst
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
22 *head_ptr = cur->next;
7b8a49220e3b Remove deferred address entries from abandoned translations inside z80_retrans_inst
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
23 free(cur);
7b8a49220e3b Remove deferred address entries from abandoned translations inside z80_retrans_inst
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
24 }
7b8a49220e3b Remove deferred address entries from abandoned translations inside z80_retrans_inst
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
25 }
7b8a49220e3b Remove deferred address entries from abandoned translations inside z80_retrans_inst
Mike Pavone <pavone@retrodev.com>
parents: 235
diff changeset
26
235
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
27 void process_deferred(deferred_addr ** head_ptr, void * context, native_addr_func get_native)
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
28 {
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
29 deferred_addr * cur = *head_ptr;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
30 deferred_addr **last_next = head_ptr;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
31 while(cur)
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
32 {
558
dc9f178085a0 Use a typedef code_ptr in place of uint8_t * in 68K core to better support host instruction sets with different instruction word sizes. Make x86_68k_options contain a cpu_options so that gen_mem_fun can eventually be shared with the Z80 core.
Mike Pavone <pavone@retrodev.com>
parents: 557
diff changeset
33 code_ptr native = get_native(context, cur->address);//get_native_address(opts->native_code_map, cur->address);
235
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
34 if (native) {
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
35 int32_t disp = native - (cur->dest + 4);
558
dc9f178085a0 Use a typedef code_ptr in place of uint8_t * in 68K core to better support host instruction sets with different instruction word sizes. Make x86_68k_options contain a cpu_options so that gen_mem_fun can eventually be shared with the Z80 core.
Mike Pavone <pavone@retrodev.com>
parents: 557
diff changeset
36 code_ptr out = cur->dest;
235
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
37 *(out++) = disp;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
38 disp >>= 8;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
39 *(out++) = disp;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
40 disp >>= 8;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
41 *(out++) = disp;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
42 disp >>= 8;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
43 *out = disp;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
44 *last_next = cur->next;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
45 free(cur);
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
46 cur = *last_next;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
47 } else {
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
48 last_next = &(cur->next);
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
49 cur = cur->next;
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
50 }
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
51 }
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
52 }
d9bf8e61c33c Get Z80 core working for simple programs
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
53
1130
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
54 memmap_chunk const *find_map_chunk(uint32_t address, cpu_options *opts, uint16_t flags, uint32_t *size_sum)
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
55 {
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
56 if (size_sum) {
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
57 *size_sum = 0;
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
58 }
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
59 address &= opts->address_mask;
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
60 for (memmap_chunk const *cur = opts->memmap, *end = opts->memmap + opts->memmap_chunks; cur != end; cur++)
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
61 {
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
62 if (address >= cur->start && address < cur->end) {
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
63 return cur;
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
64 } else if (size_sum && (cur->flags & flags) == flags) {
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
65 *size_sum += chunk_size(opts, cur);
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
66 }
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
67 }
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
68 return NULL;
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
69 }
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1079
diff changeset
70
653
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
71 void * get_native_pointer(uint32_t address, void ** mem_pointers, cpu_options * opts)
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
72 {
654
98927f1b005b Fix some issues with 68K instruction retranslation
Michael Pavone <pavone@retrodev.com>
parents: 653
diff changeset
73 memmap_chunk const * memmap = opts->memmap;
653
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
74 address &= opts->address_mask;
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
75 for (uint32_t chunk = 0; chunk < opts->memmap_chunks; chunk++)
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
76 {
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
77 if (address >= memmap[chunk].start && address < memmap[chunk].end) {
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
78 if (!(memmap[chunk].flags & MMAP_READ)) {
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
79 return NULL;
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
80 }
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
81 uint8_t * base = memmap[chunk].flags & MMAP_PTR_IDX
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
82 ? mem_pointers[memmap[chunk].ptr_index]
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
83 : memmap[chunk].buffer;
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
84 if (!base) {
1079
329ff62ea391 Add a new memory map flag to support an auxilliary buffer for translating code from MMAP_PTR_IDX chunks for which the pointer is null
Michael Pavone <pavone@retrodev.com>
parents: 690
diff changeset
85 if (memmap[chunk].flags & MMAP_AUX_BUFF) {
329ff62ea391 Add a new memory map flag to support an auxilliary buffer for translating code from MMAP_PTR_IDX chunks for which the pointer is null
Michael Pavone <pavone@retrodev.com>
parents: 690
diff changeset
86 return memmap[chunk].buffer + (address & memmap[chunk].aux_mask);
329ff62ea391 Add a new memory map flag to support an auxilliary buffer for translating code from MMAP_PTR_IDX chunks for which the pointer is null
Michael Pavone <pavone@retrodev.com>
parents: 690
diff changeset
87 }
653
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
88 return NULL;
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
89 }
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
90 return base + (address & memmap[chunk].mask);
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
91 }
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
92 }
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
93 return NULL;
a18e3923481e Remove some of the hard coded assumptions about the memory map from the CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 558
diff changeset
94 }
690
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
95
1313
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
96 uint16_t read_word(uint32_t address, void **mem_pointers, cpu_options *opts, void *context)
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
97 {
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
98 memmap_chunk const *chunk = find_map_chunk(address, opts, 0, NULL);
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
99 if (!chunk) {
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
100 return 0xFFFF;
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
101 }
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
102 uint32_t offset = (address - chunk->start) & chunk->mask;
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
103 if (chunk->flags & MMAP_READ) {
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
104 uint8_t *base;
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
105 if (chunk->flags & MMAP_PTR_IDX) {
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
106 base = mem_pointers[chunk->ptr_index];
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
107 } else {
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
108 base = chunk->buffer;
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
109 }
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
110 if (base) {
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
111 uint16_t val;
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
112 if ((chunk->flags & MMAP_ONLY_ODD) || (chunk->flags & MMAP_ONLY_EVEN)) {
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
113 offset /= 2;
1419
92e7dafcc0dc Fix a silly variable shadowing bug in read_word
Michael Pavone <pavone@retrodev.com>
parents: 1313
diff changeset
114 val = base[offset];
1313
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
115 if (chunk->flags & MMAP_ONLY_ODD) {
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
116 val |= 0xFF00;
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
117 } else {
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
118 val = val << 8 | 0xFF;
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
119 }
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
120 } else {
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
121 val = *(uint16_t *)(base + offset);
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
122 }
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
123 return val;
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
124 }
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
125 }
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
126 if ((!(chunk->flags & MMAP_READ) || (chunk->flags & MMAP_FUNC_NULL)) && chunk->read_16) {
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
127 return chunk->read_16(offset, context);
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
128 }
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
129 return 0xFFFF;
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
130 }
b27d7bf1107e Improved printing of word at absolute address to support reading from all address types. Implemented support for printing the value pointed to by a register. Removed abuse of read_dma_value in internal debugger.
Michael Pavone <pavone@retrodev.com>
parents: 1142
diff changeset
131
690
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
132 uint32_t chunk_size(cpu_options *opts, memmap_chunk const *chunk)
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
133 {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
134 if (chunk->mask == opts->address_mask) {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
135 return chunk->end - chunk->start;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
136 } else {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
137 return chunk->mask + 1;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
138 }
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
139 }
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
140
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
141 uint32_t ram_size(cpu_options *opts)
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
142 {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
143 uint32_t size = 0;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
144 for (int i = 0; i < opts->memmap_chunks; i++)
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
145 {
1142
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
146 if (opts->memmap[i].flags & MMAP_CODE) {
690
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
147 if (opts->memmap[i].mask == opts->address_mask) {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
148 size += opts->memmap[i].end - opts->memmap[i].start;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
149 } else {
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
150 size += opts->memmap[i].mask + 1;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
151 }
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
152 }
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
153 }
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
154 return size;
fc04781f4d28 Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents: 654
diff changeset
155 }