From: Stephane Carrez Date: Fri, 11 Aug 2000 18:44:59 +0000 (+0000) Subject: Use address mapping levels for 68hc11 simulator (kill overlap hack) X-Git-Tag: newlib-1_9_0~1178 X-Git-Url: http://git.ipfire.org/?p=thirdparty%2Fbinutils-gdb.git;a=commitdiff_plain;h=63348d048f2d0bdaa82071e72708c7345ba2a3bf Use address mapping levels for 68hc11 simulator (kill overlap hack) --- diff --git a/sim/m68hc11/ChangeLog b/sim/m68hc11/ChangeLog index bb90ad5afb2..8f4bd5f053f 100644 --- a/sim/m68hc11/ChangeLog +++ b/sim/m68hc11/ChangeLog @@ -1,3 +1,26 @@ +2000-08-11 Stephane Carrez + + * sim-main.h (m68hc11_map_level): Define level of address mappings. + * dv-m68hc11eepr.c (struct m68hc11eepr ): New flag to indicate + whether the eeprom is currently mapped or not. + (m68hc11eepr_port_event): Use the flag to see if we must unmap + or map the eeprom. Update the flag to reflect the current state. + Use M6811_EEPROM_LEVEL when mapping the eeprom. + (m68hc11eepr_finish): Remove overlap hack. + (attach_m68hc11eepr_regs): Use M6811_IO_LEVEL when mapping the + config and control registers. + * dv-m68hc11.c (m68hc11cpu_finish): Remove overlap hack. + (attach_m68hc11_regs): Use M6811_IO_LEVEL. + (m68hc11cpu_io_write): Likewise when unmapping and re-mapping. + * dv-m68hc11spi.c (m68hc11spi_finish): Likewise. + (attach_m68hc11spi_regs): Likewise. + * dv-m68hc11tim.c (m68hc11tim_finish): Likewise. + (attach_m68hc11tim_regs): Likewise. + * dv-m68hc11sio.c (m68hc11sio_finish): Likewise. + (attach_m68hc11sio_regs): Likewise. + * interp.c (sim_open): Likewise. + * dv-nvram.c (attach_nvram_regs): Likewise. + Thu Jul 27 21:27:25 2000 Andrew Cagney * configure, config.in: Regenerate. diff --git a/sim/m68hc11/dv-m68hc11.c b/sim/m68hc11/dv-m68hc11.c index 0cca68076ee..1ce8c13416f 100644 --- a/sim/m68hc11/dv-m68hc11.c +++ b/sim/m68hc11/dv-m68hc11.c @@ -198,7 +198,7 @@ attach_m68hc11_regs (struct hw *me, ®.size, &controller->attach_size, me); - hw_attach_address (hw_parent (me), 0, + hw_attach_address (hw_parent (me), M6811_IO_LEVEL, controller->attach_space, controller->attach_address, controller->attach_size, @@ -237,7 +237,6 @@ m68hc11cpu_finish (struct hw *me) struct m68hc11cpu *controller; controller = HW_ZALLOC (me, struct m68hc11cpu); - me->overlap_mode_hw = 1; set_hw_data (me, controller); set_hw_io_read_buffer (me, m68hc11cpu_io_read_buffer); set_hw_io_write_buffer (me, m68hc11cpu_io_write_buffer); @@ -490,13 +489,13 @@ m68hc11cpu_io_write (struct hw *me, sim_cpu *cpu, { struct m68hc11cpu *controller = hw_data (me); - hw_detach_address (hw_parent (me), 0, + hw_detach_address (hw_parent (me), M6811_IO_LEVEL, controller->attach_space, controller->attach_address, controller->attach_size, me); controller->attach_address = (val & 0x0F0) << 12; - hw_attach_address (hw_parent (me), 0, + hw_attach_address (hw_parent (me), M6811_IO_LEVEL, controller->attach_space, controller->attach_address, controller->attach_size, diff --git a/sim/m68hc11/dv-m68hc11eepr.c b/sim/m68hc11/dv-m68hc11eepr.c index 1e26d857925..df3b371bc29 100644 --- a/sim/m68hc11/dv-m68hc11eepr.c +++ b/sim/m68hc11/dv-m68hc11eepr.c @@ -88,7 +88,8 @@ struct m68hc11eepr address_word base_address; /* control register base */ int attach_space; unsigned size; - + int mapped; + /* Current state of the eeprom programing: - eeprom_wmode indicates whether the EEPROM address and byte have been latched. @@ -205,8 +206,10 @@ attach_m68hc11eepr_regs (struct hw *me, /* Attach the two IO registers that control the EEPROM. The EEPROM is only attached at reset time because it may be enabled/disabled by the EEON bit in the CONFIG register. */ - hw_attach_address (hw_parent (me), 0, io_map, M6811_PPROG, 1, me); - hw_attach_address (hw_parent (me), 0, io_map, M6811_CONFIG, 1, me); + hw_attach_address (hw_parent (me), M6811_IO_LEVEL, + io_map, M6811_PPROG, 1, me); + hw_attach_address (hw_parent (me), M6811_IO_LEVEL, + io_map, M6811_CONFIG, 1, me); if (hw_find_property (me, "file") == NULL) controller->file_name = "m6811.eeprom"; @@ -218,7 +221,8 @@ attach_m68hc11eepr_regs (struct hw *me, controller->eeprom = (char*) malloc (attach_size + 1); controller->eeprom_min_cycles = 10000; controller->size = attach_size + 1; - + controller->mapped = 0; + m6811eepr_memory_rw (controller, O_RDONLY); } @@ -267,19 +271,23 @@ m68hc11eepr_port_event (struct hw *me, see Motorola spec). */ if (cpu->ios[M6811_CONFIG] & M6811_EEON) { - hw_attach_address (hw_parent (me), 0, - controller->attach_space, - controller->base_address, - controller->size - 1, - me); + if (controller->mapped) + hw_attach_address (hw_parent (me), M6811_EEPROM_LEVEL, + controller->attach_space, + controller->base_address, + controller->size - 1, + me); + controller->mapped = 0; } else { - hw_detach_address (hw_parent (me), 0, - controller->attach_space, - controller->base_address, - controller->size - 1, - me); + if (!controller->mapped) + hw_detach_address (hw_parent (me), M6811_EEPROM_LEVEL, + controller->attach_space, + controller->base_address, + controller->size - 1, + me); + controller->mapped = 1; } break; } @@ -297,7 +305,6 @@ m68hc11eepr_finish (struct hw *me) struct m68hc11eepr *controller; controller = HW_ZALLOC (me, struct m68hc11eepr); - me->overlap_mode_hw = 1; set_hw_data (me, controller); set_hw_io_read_buffer (me, m68hc11eepr_io_read_buffer); set_hw_io_write_buffer (me, m68hc11eepr_io_write_buffer); diff --git a/sim/m68hc11/dv-m68hc11sio.c b/sim/m68hc11/dv-m68hc11sio.c index df493d642c0..3e6d4eb7d2e 100644 --- a/sim/m68hc11/dv-m68hc11sio.c +++ b/sim/m68hc11/dv-m68hc11sio.c @@ -118,7 +118,7 @@ static void attach_m68hc11sio_regs (struct hw *me, struct m68hc11sio *controller) { - hw_attach_address (hw_parent (me), 0, io_map, + hw_attach_address (hw_parent (me), M6811_IO_LEVEL, io_map, M6811_SCI_FIRST_REG, M6811_SCI_LAST_REG - M6811_SCI_FIRST_REG + 1, me); @@ -143,7 +143,6 @@ m68hc11sio_finish (struct hw *me) struct m68hc11sio *controller; controller = HW_ZALLOC (me, struct m68hc11sio); - me->overlap_mode_hw = 1; set_hw_data (me, controller); set_hw_io_read_buffer (me, m68hc11sio_io_read_buffer); set_hw_io_write_buffer (me, m68hc11sio_io_write_buffer); diff --git a/sim/m68hc11/dv-m68hc11spi.c b/sim/m68hc11/dv-m68hc11spi.c index 42aaa7054de..96e73d2bc1d 100644 --- a/sim/m68hc11/dv-m68hc11spi.c +++ b/sim/m68hc11/dv-m68hc11spi.c @@ -113,7 +113,7 @@ static void attach_m68hc11spi_regs (struct hw *me, struct m68hc11spi *controller) { - hw_attach_address (hw_parent (me), 0, io_map, + hw_attach_address (hw_parent (me), M6811_IO_LEVEL, io_map, M6811_SPI_FIRST_REG, M6811_SPI_LAST_REG - M6811_SPI_FIRST_REG + 1, me); @@ -125,7 +125,6 @@ m68hc11spi_finish (struct hw *me) struct m68hc11spi *controller; controller = HW_ZALLOC (me, struct m68hc11spi); - me->overlap_mode_hw = 1; set_hw_data (me, controller); set_hw_io_read_buffer (me, m68hc11spi_io_read_buffer); set_hw_io_write_buffer (me, m68hc11spi_io_write_buffer); diff --git a/sim/m68hc11/dv-m68hc11tim.c b/sim/m68hc11/dv-m68hc11tim.c index c672d3a5e2a..3a4b2cf3dde 100644 --- a/sim/m68hc11/dv-m68hc11tim.c +++ b/sim/m68hc11/dv-m68hc11tim.c @@ -103,7 +103,7 @@ static void attach_m68hc11tim_regs (struct hw *me, struct m68hc11tim *controller) { - hw_attach_address (hw_parent (me), 0, io_map, + hw_attach_address (hw_parent (me), M6811_IO_LEVEL, io_map, M6811_TIMER_FIRST_REG, M6811_TIMER_LAST_REG - M6811_TIMER_FIRST_REG + 1, me); @@ -116,7 +116,6 @@ m68hc11tim_finish (struct hw *me) struct m68hc11tim *controller; controller = HW_ZALLOC (me, struct m68hc11tim); - me->overlap_mode_hw = 1; set_hw_data (me, controller); set_hw_io_read_buffer (me, m68hc11tim_io_read_buffer); set_hw_io_write_buffer (me, m68hc11tim_io_write_buffer); diff --git a/sim/m68hc11/dv-nvram.c b/sim/m68hc11/dv-nvram.c index 6ffea5d5b6f..39bd6f24fb1 100644 --- a/sim/m68hc11/dv-nvram.c +++ b/sim/m68hc11/dv-nvram.c @@ -44,11 +44,6 @@ PROPERTIES - overlap? - - Boolean property which indicates whether the device can overlap - another device. By default, overlapping is not allowed. - reg Base and size of the non-volatile ram bank. @@ -135,11 +130,6 @@ attach_nvram_regs (struct hw *me, struct nvram *controller) reg_property_spec reg; int result, oerrno; - /* Get the flag that controls overlapping of ram bank to another device. */ - if (hw_find_property (me, "overlap?") != NULL - && hw_find_boolean_property (me, "overlap?")) - me->overlap_mode_hw = 1; - /* Get ram bank description (base and size). */ if (hw_find_property (me, "reg") == NULL) hw_abort (me, "Missing \"reg\" property"); diff --git a/sim/m68hc11/interp.c b/sim/m68hc11/interp.c index c05f1b847a5..b004bc87bae 100644 --- a/sim/m68hc11/interp.c +++ b/sim/m68hc11/interp.c @@ -163,10 +163,11 @@ sim_open (SIM_OPEN_KIND kind, host_callback *callback, /* Allocate core managed memory */ /* the monitor */ - sim_do_commandf (sd, "memory region 0x%lx,0x%lx", + sim_do_commandf (sd, "memory region 0x%lx@%d,0x%lx", /* MONITOR_BASE, MONITOR_SIZE */ - 0x8000, 0x8000); - sim_do_command (sd, " memory region 0x000,0x8000"); + 0x8000, M6811_RAM_LEVEL, 0x8000); + sim_do_commandf (sd, "memory region 0x000@%d,0x8000", + M6811_RAM_LEVEL); sim_hw_parse (sd, "/m68hc11/reg 0x1000 0x03F"); } @@ -195,7 +196,6 @@ sim_open (SIM_OPEN_KIND kind, host_callback *callback, sim_hw_parse (sd, "/m68hc11/nvram/reg 0x0 256"); sim_hw_parse (sd, "/m68hc11/nvram/file m68hc11.ram"); sim_hw_parse (sd, "/m68hc11/nvram/mode save-modified"); - sim_hw_parse (sd, "/m68hc11/nvram/overlap? true"); /*sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/pram"); */ } if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11eepr/reg") == 0) diff --git a/sim/m68hc11/sim-main.h b/sim/m68hc11/sim-main.h index 8825977c6cb..c5c42e4d49a 100644 --- a/sim/m68hc11/sim-main.h +++ b/sim/m68hc11/sim-main.h @@ -54,6 +54,18 @@ struct _sim_cpu; #include "interrupts.h" #include +/* Specifies the level of mapping for the IO, EEprom, nvram and external + RAM. IO registers are mapped over everything and the external RAM + is last (ie, it can be hidden by everything above it in the list). */ +enum m68hc11_map_level +{ + M6811_IO_LEVEL, + M6811_EEPROM_LEVEL, + M6811_NVRAM_LEVEL, + M6811_RAM_LEVEL +}; + + #define X_REGNUM 0 #define D_REGNUM 1 #define Y_REGNUM 2