#include "reg8051.h"
#include "cpu8051.h"
#include "regwin.h"
+#include "memwin.h"
+#include "instructions_8051.h"
static GtkWidget *reglist;
#define HEX_DIGITS_2 2
#define HEX_DIGITS_4 4
-struct regwin_read_t {
+struct regwin_infos_t {
char *name; /* Register name */
int w; /* Number of hex digits to display */
- unsigned int (*read_func)(int addr); /* Function pointer to read value */
+ unsigned int (*read_func)(int addr); /* Function to read value */
+ void (*write_func)(int param, int val); /* Function to write value */
int param; /* Optional parameter to pass to read function. */
};
-/* Generic read function */
+/* Generic read/write functions */
static unsigned int
-regwin_read_8(int addr)
+regwin_read(int addr, int width)
{
- return cpu8051_ReadD(addr);
+ if (width == 2)
+ return cpu8051_ReadD(addr);
+ else if (width == 4) {
+ /* Address is low address. */
+ return (cpu8051_ReadD(addr + 1) << 8) +
+ cpu8051_ReadD(addr);
+ }
}
-/* Specific read functions for special registers. */
+static void
+regwin_write(int addr, int val, int width)
+{
+ if (width == 2)
+ cpu8051_WriteD(addr, (u_int8_t) val);
+ else if (width == 4) {
+ /* Address is low address. */
+ cpu8051_WriteD(addr + 1, (u_int8_t) ((val & 0x0000FFFF) >> 8));
+ cpu8051_WriteD(addr, (u_int8_t) val);
+ }
+};
+
+/* Specific read/write functions for special registers. */
static unsigned int
regwin_read_pc(int dummy)
return cpu8051.pc;
}
-static unsigned int
-regwin_read_dptr(int dummy)
+static void
+regwin_write_pc(int param, int val)
{
- return (cpu8051_ReadD(_DPTRHIGH_) << 8) +
- cpu8051_ReadD(_DPTRLOW_);
+ cpu8051.pc = (u_int16_t) val;
}
static unsigned int
regwin_read_bank(int dummy)
{
- return cpu8051_ReadD(_PSW_) & 0x18;
+ return BANKPSW >> 3;
+}
+
+static void
+regwin_write_bank(int param, int bank_number)
+{
+ u_int8_t psw = cpu8051_ReadD(_PSW_);
+
+ if ((bank_number < 0) || (bank_number > 3)) {
+ log_info("Error: invalid bank number: %d", bank_number);
+ bank_number = 0;
+ }
+
+ cpu8051_WriteD(_PSW_, (psw & ~0x18) | (bank_number << 3));
}
/* Read R0 - R7 in current bank. */
static unsigned int
-regwin_read_rx(int addr)
+regwin_read_rx(int offset)
{
- int rbank = regwin_read_bank(0); /* dummy */
+ return cpu8051_ReadD(BANKPSW + offset);
+}
- return cpu8051_ReadD(addr + rbank);
+static void
+regwin_write_rx(int offset, int val)
+{
+ cpu8051_WriteD(BANKPSW + offset, (u_int8_t) val);
}
/* This array defines how to read value for each register. */
-static struct regwin_read_t regwin_read[DATA_ROWS] = {
+static struct regwin_infos_t regwin_infos[DATA_ROWS] = {
{
"PC",
HEX_DIGITS_4,
- regwin_read_pc,
+ regwin_read_pc, regwin_write_pc,
0, /* Dummy */
},
{
"SP",
HEX_DIGITS_2,
- regwin_read_8,
+ NULL, NULL,
_SP_,
},
{
"A",
HEX_DIGITS_2,
- regwin_read_8,
+ NULL, NULL,
_ACC_,
},
{
"B",
HEX_DIGITS_2,
- regwin_read_8,
+ NULL, NULL,
_B_,
},
{
"DPTR",
HEX_DIGITS_4,
- regwin_read_dptr,
- 0, /* Dummy */
+ NULL, NULL,
+ _DPL_,
},
{
"PSW",
HEX_DIGITS_2,
- regwin_read_8,
+ NULL, NULL,
_PSW_,
},
{
"P0",
HEX_DIGITS_2,
- regwin_read_8,
+ NULL, NULL,
_P0_,
},
{
"P1",
HEX_DIGITS_2,
- regwin_read_8,
+ NULL, NULL,
_P1_,
},
{
"P2",
HEX_DIGITS_2,
- regwin_read_8,
+ NULL, NULL,
_P2_,
},
{
"P3",
HEX_DIGITS_2,
- regwin_read_8,
+ NULL, NULL,
_P3_,
},
{
"TCON",
HEX_DIGITS_2,
- regwin_read_8,
+ NULL, NULL,
_TCON_,
},
{
"TMOD",
HEX_DIGITS_2,
- regwin_read_8,
+ NULL, NULL,
_TMOD_,
},
{
"SCON",
HEX_DIGITS_2,
- regwin_read_8,
+ NULL, NULL,
_SCON_,
},
{
"IE",
HEX_DIGITS_2,
- regwin_read_8,
+ NULL, NULL,
_IE_,
},
{
"IP",
HEX_DIGITS_2,
- regwin_read_8,
+ NULL, NULL,
_IP_,
},
{
"BANK",
HEX_DIGITS_2,
- regwin_read_bank,
+ regwin_read_bank, regwin_write_bank,
0, /* Dummy */
},
/* R0-R7 Registers in current Bank */
{
"R0",
HEX_DIGITS_2,
- regwin_read_rx,
+ regwin_read_rx, regwin_write_rx,
_R0_,
},
{
"R1",
HEX_DIGITS_2,
- regwin_read_rx,
+ regwin_read_rx, regwin_write_rx,
_R1_,
},
{
"R2",
HEX_DIGITS_2,
- regwin_read_rx,
+ regwin_read_rx, regwin_write_rx,
_R2_,
},
{
"R3",
HEX_DIGITS_2,
- regwin_read_rx,
+ regwin_read_rx, regwin_write_rx,
_R3_,
},
{
"R4",
HEX_DIGITS_2,
- regwin_read_rx,
+ regwin_read_rx, regwin_write_rx,
_R4_,
},
{
"R5",
HEX_DIGITS_2,
- regwin_read_rx,
+ regwin_read_rx, regwin_write_rx,
_R5_,
},
{
"R6",
HEX_DIGITS_2,
- regwin_read_rx,
+ regwin_read_rx, regwin_write_rx,
_R6_,
},
{
"R7",
HEX_DIGITS_2,
- regwin_read_rx,
+ regwin_read_rx, regwin_write_rx,
_R7_,
},
};
return store;
}
+static int
+regwin_find_row(const char *regname)
+{
+ int row;
+
+ for (row = 0; row < DATA_ROWS; row++) {
+ if (strcmp(regwin_infos[row].name, regname) == 0)
+ return row;
+ }
+
+ return -1; /* Programming error. */
+}
+
+static void
+regwin_cell_edited(GtkCellRendererText *cell, gchar *path_string,
+ gchar *new_str, gpointer model)
+{
+ GtkTreeIter iter;
+ int old;
+ int new;
+ char *str;
+ int row;
+
+ if (!model) {
+ g_error("Unable to get model from cell renderer");
+ }
+
+ /* Get the iterator */
+ gtk_tree_model_get_iter_from_string(model, &iter, path_string);
+
+ /* Get register name. */
+ gtk_tree_model_get(model, &iter, COL_NAME, &str, -1);
+
+ log_info("Register: %s", str);
+ row = regwin_find_row(str);
+ log_info(" row = %d", row);
+
+ /* Read current (old) value. */
+ gtk_tree_model_get(model, &iter, COL_VAL, &str, -1);
+
+ /* Convert old value (asciihex) to integer. */
+ sscanf(str, "%x", &old);
+
+ if (regwin_infos[row].w == 2)
+ log_info(" old value: $%02X", old);
+ else if (regwin_infos[row].w == 4)
+ log_info(" old value: $%04X", old);
+
+ /* Convert new value (asciihex) to integer. */
+ sscanf(new_str, "%x", &new);
+
+ if (regwin_infos[row].w == 2) {
+ if ((new < 0) || (new > 0xFF)) {
+ log_info(" new value: out of range");
+ new = old; /* Put back old value... */
+ } else {
+ log_info(" new value: $%02X", new);
+ }
+ } else if (regwin_infos[row].w == 4) {
+ if ((new < 0) || (new > 0xFFFF)) {
+ log_info(" new value: out of range");
+ new = old; /* Put back old value... */
+ } else {
+ log_info(" new value: $%04X", new);
+ }
+ }
+
+ /* Convert new value to text. */
+ if (regwin_infos[row].w == 2)
+ sprintf(str, "%02X", new);
+ else if (regwin_infos[row].w == 4)
+ sprintf(str, "%04X", new);
+
+ /* Store new value in emulator register. */
+ if (regwin_infos[row].write_func == NULL) {
+ /*
+ * Write register value using generic 8 or 16 bits write
+ * function, depending on width.
+ */
+ regwin_write(regwin_infos[row].param, new, regwin_infos[row].w);
+ } else {
+ /* Write register value using custom function pointer. */
+ regwin_infos[row].write_func(regwin_infos[row].param, new);
+ }
+
+ /* Store new value in gtk model. */
+ gtk_list_store_set(GTK_LIST_STORE(model), &iter, COL_VAL, str, -1);
+
+ /*
+ * Make sure to update all windows.
+ * For example, R0-R7 values depends on internal memory values.
+ */
+ regwin_Show();
+ memwin_DumpD("0");
+};
+
static void
regwin_init_columns(void)
{
gtk_tree_view_append_column(GTK_TREE_VIEW(reglist), column);
/* Add Value column */
+
+ /* Create new renderer for value column (editable). */
+ renderer = gtk_cell_renderer_text_new();
+
+ /* Allow edition, align to right side. */
+ g_object_set(renderer, "editable", TRUE, "xalign", 1.0, NULL);
+
+ g_signal_connect(renderer, "edited",
+ G_CALLBACK(regwin_cell_edited),
+ gtk_tree_view_get_model(GTK_TREE_VIEW(reglist)));
+
column = gtk_tree_view_column_new_with_attributes(
"Value", renderer, "text", COL_VAL, NULL);
gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
return;
}
- /* Read register value using function pointer. */
- val = regwin_read[row].read_func(regwin_read[row].param);
+ if (regwin_infos[row].read_func == NULL) {
+ /*
+ * Read register value using generic 8 or 16 bits read
+ * function, depending on width.
+ */
+ val = regwin_read(regwin_infos[row].param,
+ regwin_infos[row].w);
+ } else {
+ /* Read register value using custom function pointer. */
+ val = regwin_infos[row].read_func(regwin_infos[row].param);
+ }
/* Convert to specified number of hex digits. */
- if (regwin_read[row].w == 2)
+ if (regwin_infos[row].w == 2)
sprintf(str , "%.2X", (u_int8_t) val);
- else if (regwin_read[row].w == 4)
+ else if (regwin_infos[row].w == 4)
sprintf(str , "%.4X", (u_int16_t) val);
gtk_list_store_set(store, &iter,
- COL_NAME, regwin_read[row].name,
+ COL_NAME, regwin_infos[row].name,
COL_VAL, str,
-1);
}
projects / emu8051.git / commitdiff