diff options
Diffstat (limited to 'lib/ccdbg-memory.c')
| -rw-r--r-- | lib/ccdbg-memory.c | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/lib/ccdbg-memory.c b/lib/ccdbg-memory.c deleted file mode 100644 index 554ac637..00000000 --- a/lib/ccdbg-memory.c +++ /dev/null @@ -1,179 +0,0 @@ -/* - * Copyright © 2008 Keith Packard <keithp@keithp.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ - -#include "ccdbg.h" - -/* - * Read and write arbitrary memory through the debug port - */ - -static uint8_t memory_init[] = { - 3, MOV_DPTR_data16, 0, 0, -#define HIGH_START 2 -#define LOW_START 3 - 0, -}; - - -static uint8_t write8[] = { - 2, MOV_A_data, 0, -#define DATA_BYTE 2 - 1, MOVX_atDPTR_A, - 1, INC_DPTR, - 0 -}; - -static uint8_t read8[] = { - 1, MOVX_A_atDPTR, - 1, INC_DPTR, - 0, -}; - -uint8_t -ccdbg_write_memory(struct ccdbg *dbg, uint16_t addr, uint8_t *bytes, int nbytes) -{ - int i, nl = 0; - struct ccstate state; - - if (dbg->usb) - return cc_usb_write_memory(dbg->usb, addr, bytes, nbytes); - ccdbg_state_save(dbg, &state, CC_STATE_ACC | CC_STATE_PSW | CC_STATE_DP); - memory_init[HIGH_START] = addr >> 8; - memory_init[LOW_START] = addr; - (void) ccdbg_execute(dbg, memory_init); - for (i = 0; i < nbytes; i++) { - write8[DATA_BYTE] = *bytes++; - ccdbg_execute(dbg, write8); - if ((i & 0xf) == 0xf) { - ccdbg_debug(CC_DEBUG_MEMORY, "."); - ccdbg_flush(CC_DEBUG_MEMORY); - nl = 1; - } - if ((i & 0xff) == 0xff) { - ccdbg_debug(CC_DEBUG_MEMORY, "\n"); - nl = 0; - } - } - ccdbg_state_restore(dbg, &state); - if (nl) - ccdbg_debug(CC_DEBUG_MEMORY, "\n"); - return 0; -} - -uint8_t -ccdbg_read_memory(struct ccdbg *dbg, uint16_t addr, uint8_t *bytes, int nbytes) -{ - int i, nl = 0; - struct ccstate state; - - if (ccdbg_rom_contains(dbg, addr, nbytes)) { - ccdbg_rom_replace_xmem(dbg, addr, bytes, nbytes); - return 0; - } - if (dbg->usb) - return cc_usb_read_memory(dbg->usb, addr, bytes, nbytes); - ccdbg_state_save(dbg, &state, CC_STATE_ACC | CC_STATE_PSW | CC_STATE_DP); - memory_init[HIGH_START] = addr >> 8; - memory_init[LOW_START] = addr; - (void) ccdbg_execute(dbg, memory_init); - for (i = 0; i < nbytes; i++) { - *bytes++ = ccdbg_execute(dbg, read8); - if ((i & 0xf) == 0xf) { - ccdbg_debug(CC_DEBUG_MEMORY, "."); - ccdbg_flush(CC_DEBUG_MEMORY); - nl = 1; - } - if ((i & 0xff) == 0xff) { - ccdbg_debug(CC_DEBUG_MEMORY, "\n"); - nl = 0; - } - } - ccdbg_state_replace_xmem(dbg, &state, addr, bytes, nbytes); - ccdbg_state_restore(dbg, &state); - if (nl) - ccdbg_debug(CC_DEBUG_MEMORY, "\n"); - return 0; -} - -uint8_t -ccdbg_write_uint8(struct ccdbg *dbg, uint16_t addr, uint8_t byte) -{ - return ccdbg_write_memory(dbg, addr, &byte, 1); -} - -uint8_t -ccdbg_write_hex_image(struct ccdbg *dbg, struct hex_image *image, uint16_t offset) -{ - ccdbg_write_memory(dbg, image->address + offset, image->data, image->length); - return 0; -} - -struct hex_image * -ccdbg_read_hex_image(struct ccdbg *dbg, uint16_t address, uint16_t length) -{ - struct hex_image *image; - - image = calloc(sizeof(struct hex_image) + length, 1); - image->address = address; - image->length = length; - memset(image->data, 0xff, length); - ccdbg_read_memory(dbg, address, image->data, length); - return image; -} - -static uint8_t sfr_read[] = { - 2, MOV_A_direct, 0, -#define SFR_READ_ADDR 2 - 0, -}; - -static uint8_t sfr_write[] = { - 3, MOV_direct_data, 0, 0, -#define SFR_WRITE_ADDR 2 -#define SFR_WRITE_DATA 3 - 0, -}; - -uint8_t -ccdbg_read_sfr(struct ccdbg *dbg, uint8_t addr, uint8_t *bytes, int nbytes) -{ - int i; - struct ccstate state; - - ccdbg_state_save(dbg, &state, CC_STATE_ACC); - for (i = 0; i < nbytes; i++) { - sfr_read[SFR_READ_ADDR] = addr + i; - *bytes++ = ccdbg_execute(dbg, sfr_read); - } - ccdbg_state_replace_sfr(dbg, &state, addr, bytes, nbytes); - ccdbg_state_restore(dbg, &state); - return 0; -} - -uint8_t -ccdbg_write_sfr(struct ccdbg *dbg, uint8_t addr, uint8_t *bytes, int nbytes) -{ - int i; - - for (i = 0; i < nbytes; i++) { - sfr_write[SFR_WRITE_ADDR] = addr + i; - sfr_write[SFR_WRITE_DATA] = *bytes++; - ccdbg_execute(dbg, sfr_write); - } - return 0; -} |