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-rw-r--r--Makefile.fpc3
-rw-r--r--compiler/Makefile.fpc14
-rw-r--r--compiler/utils/fpc.pp6
-rw-r--r--rtl/embedded/Makefile.fpc9
-rw-r--r--rtl/embedded/xtensa/esp8266.pp254
5 files changed, 282 insertions, 4 deletions
diff --git a/Makefile.fpc b/Makefile.fpc
index dcc814d0f0..2a2c512582 100644
--- a/Makefile.fpc
+++ b/Makefile.fpc
@@ -91,6 +91,9 @@ endif
ifeq ($(CPU_TARGET),riscv64)
PPSUF=rv64
endif
+ifeq ($(CPU_TARGET),xtensa)
+PPSUF=xtensa
+endif
# cross compilers uses full cpu_target, not just ppc-suffix
# (except if the target cannot run a native compiler)
diff --git a/compiler/Makefile.fpc b/compiler/Makefile.fpc
index 813764f2e1..38e2f00d57 100644
--- a/compiler/Makefile.fpc
+++ b/compiler/Makefile.fpc
@@ -32,7 +32,7 @@ fpcdir=..
unexport FPC_VERSION FPC_COMPILERINFO
# Which platforms are ready for inclusion in the cycle
-CYCLETARGETS=i386 powerpc sparc arm x86_64 powerpc64 m68k armeb mipsel mips avr jvm i8086 aarch64 sparc64 riscv32 riscv64
+CYCLETARGETS=i386 powerpc sparc arm x86_64 powerpc64 m68k armeb mipsel mips avr jvm i8086 aarch64 sparc64 riscv32 riscv64 xtensa
# All supported targets used for clean
ALLTARGETS=$(CYCLETARGETS)
@@ -89,6 +89,9 @@ endif
ifdef RISCV64
PPC_TARGET=riscv64
endif
+ifdef XTENSA
+PPC_TARGET=xtensa
+endif
# Default is to generate a compiler for the same
# platform as CPU_TARGET (a native compiler)
@@ -224,6 +227,9 @@ endif
ifeq ($(CPC_TARGET),riscv64)
CPUSUF=rv64
endif
+ifeq ($(CPC_TARGET),xtensa)
+CPUSUF=xtensa
+endif
# Do not define the default -d$(CPU_TARGET) because that
# will conflict with our -d$(CPC_TARGET)
@@ -585,8 +591,8 @@ endif
# cpu targets
#####################################################################
-PPC_TARGETS=i386 m68k powerpc sparc arm armeb x86_64 powerpc64 mips mipsel avr jvm i8086 aarch64 sparc64 riscv32 riscv64
-PPC_SUFFIXES=386 68k ppc sparc arm armeb x64 ppc64 mips mipsel avr jvm 8086 a64 sparc64 rv32 rv64
+PPC_TARGETS=i386 m68k powerpc sparc arm armeb x86_64 powerpc64 mips mipsel avr jvm i8086 aarch64 sparc64 riscv32 riscv64 xtensa
+PPC_SUFFIXES=386 68k ppc sparc arm armeb x64 ppc64 mips mipsel avr jvm 8086 a64 sparc64 rv32 rv64 xtensa
INSTALL_TARGETS=$(addsuffix _exe_install,$(sort $(CYCLETARGETS) $(PPC_TARGETS)))
SYMLINKINSTALL_TARGETS=$(addsuffix _symlink_install,$(sort $(CYCLETARGETS) $(PPC_TARGETS)))
@@ -984,7 +990,7 @@ ifeq ($(OS_SOURCE),win64)
EXCLUDE_80BIT_TARGETS=1
endif
-ifneq ($(findstring $(CPU_SOURCE),aarch64 arm avr jvm m68k mips mipsel powerpc powerpc64 sparc sparc64 riscv32 riscv64),)
+ifneq ($(findstring $(CPU_SOURCE),aarch64 arm avr jvm m68k mips mipsel powerpc powerpc64 sparc sparc64 riscv32 riscv64 xtensa),)
EXCLUDE_80BIT_TARGETS=1
endif
diff --git a/compiler/utils/fpc.pp b/compiler/utils/fpc.pp
index 7465bedf99..06cfa13111 100644
--- a/compiler/utils/fpc.pp
+++ b/compiler/utils/fpc.pp
@@ -180,6 +180,10 @@ program fpc;
ppcbin:='ppcrv64';
processorname:='riscv64';
{$endif riscv64}
+{$ifdef xtensa}
+ ppcbin:='ppcxtensa';
+ processorname:='xtensa';
+{$endif xtensa}
versionstr:=''; { Default is just the name }
if ParamCount = 0 then
begin
@@ -263,6 +267,8 @@ program fpc;
cpusuffix:='sparc64'
else if processorstr='x86_64' then
cpusuffix:='x64'
+ else if processorstr='xtensa' then
+ cpusuffix:='xtensa'
else
error('Illegal processor type "'+processorstr+'"');
diff --git a/rtl/embedded/Makefile.fpc b/rtl/embedded/Makefile.fpc
index cb55006786..0566231c3c 100644
--- a/rtl/embedded/Makefile.fpc
+++ b/rtl/embedded/Makefile.fpc
@@ -221,6 +221,15 @@ $(error No CPUs enabled for given SUBARCH, pass either a SUBARCH or set CPU_UNIT
endif
endif
+ifeq ($(ARCH),xtensa)
+CPU_SPECIFIC_COMMON_UNITS=sysutils math classes fgl macpas typinfo types rtlconsts getopts lineinfo
+CPU_UNITS=esp8266
+CPU_UNITS_DEFINED=1
+ifeq ($(CPU_UNITS_DEFINED),)
+$(error No CPUs enabled for given SUBARCH, pass either a SUBARCH or set CPU_UNITS_DEFINED=1 if you know what you are doing)
+endif
+endif
+
# Paths
OBJPASDIR=$(RTL)/objpas
GRAPHDIR=$(INC)/graph
diff --git a/rtl/embedded/xtensa/esp8266.pp b/rtl/embedded/xtensa/esp8266.pp
new file mode 100644
index 0000000000..00706d843f
--- /dev/null
+++ b/rtl/embedded/xtensa/esp8266.pp
@@ -0,0 +1,254 @@
+unit esp8266;
+
+interface
+
+const
+ //unit: Hz
+ APB_CLK_FREQ = 80*1000000;
+ UART_CLK_FREQ = APB_CLK_FREQ;
+ //divided by 256
+ TIMER_CLK_FREQ = (APB_CLK_FREQ shr 8);
+
+ //Peripheral device base address
+ PERIPHS_DPORT_BASEADDR = $3ff00000;
+ PERIPHS_GPIO_BASEADDR = $60000300;
+ PERIPHS_TIMER_BASEDDR = $60000600;
+ PERIPHS_RTC_BASEADDR = $60000700;
+ PERIPHS_IO_MUX = $60000800;
+
+ //Interrupt remap control registers
+ EDGE_INT_ENABLE_REG = (PERIPHS_DPORT_BASEADDR+$04);
+ // TM1_EDGE_INT_ENABLE() = SET_PERI_REG_MASK(EDGE_INT_ENABLE_REG, BIT1);
+ // TM1_EDGE_INT_DISABLE() = CLEAR_PERI_REG_MASK(EDGE_INT_ENABLE_REG, BIT1);
+
+ //GPIO reg
+ // GPIO_REG_READ(reg) = READ_PERI_REG(PERIPHS_GPIO_BASEADDR + reg);
+ // GPIO_REG_WRITE(reg, val) = WRITE_PERI_REG(PERIPHS_GPIO_BASEADDR + reg, val);
+ GPIO_OUT_ADDRESS = $00;
+ GPIO_OUT_W1TS_ADDRESS = $04;
+ GPIO_OUT_W1TC_ADDRESS = $08;
+
+ GPIO_ENABLE_ADDRESS = $0c;
+ GPIO_ENABLE_W1TS_ADDRESS = $10;
+ GPIO_ENABLE_W1TC_ADDRESS = $14;
+ GPIO_OUT_W1TC_DATA_MASK = $0000ffff;
+
+ GPIO_IN_ADDRESS = $18;
+
+ GPIO_STATUS_ADDRESS = $1c;
+ GPIO_STATUS_W1TS_ADDRESS = $20;
+ GPIO_STATUS_W1TC_ADDRESS = $24;
+ GPIO_STATUS_INTERRUPT_MASK = $0000ffff;
+
+ GPIO_RTC_CALIB_SYNC = PERIPHS_GPIO_BASEADDR+$6c;
+ //first write to zero, then to one to start
+ RTC_CALIB_START = BIT31;
+ //max 8ms
+ RTC_PERIOD_NUM_MASK = $3ff;
+ GPIO_RTC_CALIB_VALUE = PERIPHS_GPIO_BASEADDR+$70;
+ //after measure, flag to one, when start from zero to one, turn to zero
+ RTC_CALIB_RDY_S = 31;
+ RTC_CALIB_VALUE_MASK = $fffff;
+
+ GPIO_PIN0_ADDRESS = $28;
+
+ GPIO_ID_PIN0 = 0;
+ // GPIO_ID_PIN(n) = (GPIO_ID_PIN0+(n));
+ GPIO_LAST_REGISTER_ID = 15;
+ GPIO_ID_NONE = $ffffffff;
+
+ GPIO_PIN_COUNT = 16;
+
+ GPIO_PIN_CONFIG_MSB = 12;
+ GPIO_PIN_CONFIG_LSB = 11;
+ GPIO_PIN_CONFIG_MASK = $00001800;
+ // GPIO_PIN_CONFIG_GET(x) = (((x) and GPIO_PIN_CONFIG_MASK) shr GPIO_PIN_CONFIG_LSB);
+ // GPIO_PIN_CONFIG_SET(x) = (((x) shl GPIO_PIN_CONFIG_LSB) and GPIO_PIN_CONFIG_MASK);
+
+ GPIO_WAKEUP_ENABLE = 1;
+ GPIO_WAKEUP_DISABLE = (not GPIO_WAKEUP_ENABLE);
+ GPIO_PIN_WAKEUP_ENABLE_MSB = 10;
+ GPIO_PIN_WAKEUP_ENABLE_LSB = 10;
+ GPIO_PIN_WAKEUP_ENABLE_MASK = $00000400;
+ // GPIO_PIN_WAKEUP_ENABLE_GET(x) = (((x) and GPIO_PIN_WAKEUP_ENABLE_MASK) shr GPIO_PIN_WAKEUP_ENABLE_LSB);
+ // GPIO_PIN_WAKEUP_ENABLE_SET(x) = (((x) shl GPIO_PIN_WAKEUP_ENABLE_LSB) and GPIO_PIN_WAKEUP_ENABLE_MASK);
+
+ GPIO_PIN_INT_TYPE_MASK = $380;
+ GPIO_PIN_INT_TYPE_MSB = 9;
+ GPIO_PIN_INT_TYPE_LSB = 7;
+ // GPIO_PIN_INT_TYPE_GET(x) = (((x) and GPIO_PIN_INT_TYPE_MASK) shr GPIO_PIN_INT_TYPE_LSB);
+ // GPIO_PIN_INT_TYPE_SET(x) = (((x) shl GPIO_PIN_INT_TYPE_LSB) and GPIO_PIN_INT_TYPE_MASK);
+
+ GPIO_PAD_DRIVER_ENABLE = 1;
+ GPIO_PAD_DRIVER_DISABLE = (not GPIO_PAD_DRIVER_ENABLE);
+ GPIO_PIN_PAD_DRIVER_MSB = 2;
+ GPIO_PIN_PAD_DRIVER_LSB = 2;
+ GPIO_PIN_PAD_DRIVER_MASK = $00000004;
+ // GPIO_PIN_PAD_DRIVER_GET(x) = (((x) and GPIO_PIN_PAD_DRIVER_MASK) shr GPIO_PIN_PAD_DRIVER_LSB);
+ // GPIO_PIN_PAD_DRIVER_SET(x) = (((x) shl GPIO_PIN_PAD_DRIVER_LSB) and GPIO_PIN_PAD_DRIVER_MASK);
+
+ GPIO_AS_PIN_SOURCE = 0;
+ SIGMA_AS_PIN_SOURCE = (not GPIO_AS_PIN_SOURCE);
+ GPIO_PIN_SOURCE_MSB = 0;
+ GPIO_PIN_SOURCE_LSB = 0;
+ GPIO_PIN_SOURCE_MASK = $00000001;
+ // GPIO_PIN_SOURCE_GET(x) = (((x) and GPIO_PIN_SOURCE_MASK) shr GPIO_PIN_SOURCE_LSB);
+ // GPIO_PIN_SOURCE_SET(x) = (((x) shl GPIO_PIN_SOURCE_LSB) and GPIO_PIN_SOURCE_MASK);
+
+ // TIMER reg
+ // RTC_REG_READ(addr) = READ_PERI_REG(PERIPHS_TIMER_BASEDDR + addr);
+ // RTC_REG_WRITE(addr, val) = WRITE_PERI_REG(PERIPHS_TIMER_BASEDDR + addr, val);
+ // RTC_CLR_REG_MASK(reg, mask) = CLEAR_PERI_REG_MASK(PERIPHS_TIMER_BASEDDR +reg, mask);
+ // Returns the current time according to the timer timer.
+ // NOW() = RTC_REG_READ(FRC2_COUNT_ADDRESS);
+
+ //load initial_value to timer1
+ FRC1_LOAD_ADDRESS = $00;
+
+ //timer1's counter value(count from initial_value to 0)
+ FRC1_COUNT_ADDRESS = $04;
+
+ FRC1_CTRL_ADDRESS = $08;
+
+ //clear timer1's interrupt when write this address
+ FRC1_INT_ADDRESS = $0c;
+ FRC1_INT_CLR_MASK = $00000001;
+
+ //timer2's counter value(count from initial_value to 0)
+ FRC2_COUNT_ADDRESS = $24;
+
+ //RTC reg
+ REG_RTC_BASE = PERIPHS_RTC_BASEADDR;
+
+ RTC_STORE0 = (REG_RTC_BASE + $030);
+ RTC_STORE1 = (REG_RTC_BASE + $034);
+ RTC_STORE2 = (REG_RTC_BASE + $038);
+ RTC_STORE3 = (REG_RTC_BASE + $03C);
+
+ RTC_GPIO_OUT = (REG_RTC_BASE + $068);
+ RTC_GPIO_ENABLE = (REG_RTC_BASE + $074);
+ RTC_GPIO_IN_DATA = (REG_RTC_BASE + $08C);
+ RTC_GPIO_CONF = (REG_RTC_BASE + $090);
+ PAD_XPD_DCDC_CONF = (REG_RTC_BASE + $0A0);
+
+ //PIN Mux reg
+ PERIPHS_IO_MUX_FUNC = $13;
+ PERIPHS_IO_MUX_FUNC_S = 4;
+ PERIPHS_IO_MUX_PULLUP = BIT7;
+ PERIPHS_IO_MUX_PULLUP2 = BIT6;
+ PERIPHS_IO_MUX_SLEEP_PULLUP = BIT3;
+ PERIPHS_IO_MUX_SLEEP_PULLUP2 = BIT2;
+ PERIPHS_IO_MUX_SLEEP_OE = BIT1;
+ PERIPHS_IO_MUX_OE = BIT0;
+
+ PERIPHS_IO_MUX_CONF_U = (PERIPHS_IO_MUX + $00);
+ SPI0_CLK_EQU_SYS_CLK = BIT8;
+ SPI1_CLK_EQU_SYS_CLK = BIT9;
+ PERIPHS_IO_MUX_MTDI_U = (PERIPHS_IO_MUX + $04);
+ FUNC_GPIO12 = 3;
+ PERIPHS_IO_MUX_MTCK_U = (PERIPHS_IO_MUX + $08);
+ FUNC_GPIO13 = 3;
+ PERIPHS_IO_MUX_MTMS_U = (PERIPHS_IO_MUX + $0C);
+ FUNC_GPIO14 = 3;
+ PERIPHS_IO_MUX_MTDO_U = (PERIPHS_IO_MUX + $10);
+ FUNC_GPIO15 = 3;
+ FUNC_U0RTS = 4;
+ PERIPHS_IO_MUX_U0RXD_U = (PERIPHS_IO_MUX + $14);
+ FUNC_GPIO3 = 3;
+ PERIPHS_IO_MUX_U0TXD_U = (PERIPHS_IO_MUX + $18);
+ FUNC_U0TXD = 0;
+ FUNC_GPIO1 = 3;
+ PERIPHS_IO_MUX_SD_CLK_U = (PERIPHS_IO_MUX + $1c);
+ FUNC_SDCLK = 0;
+ FUNC_SPICLK = 1;
+ PERIPHS_IO_MUX_SD_DATA0_U = (PERIPHS_IO_MUX + $20);
+ FUNC_SDDATA0 = 0;
+ FUNC_SPIQ = 1;
+ FUNC_U1TXD = 4;
+ PERIPHS_IO_MUX_SD_DATA1_U = (PERIPHS_IO_MUX + $24);
+ FUNC_SDDATA1 = 0;
+ FUNC_SPID = 1;
+ FUNC_U1RXD = 4;
+ FUNC_SDDATA1_U1RXD = 7;
+ PERIPHS_IO_MUX_SD_DATA2_U = (PERIPHS_IO_MUX + $28);
+ FUNC_SDDATA2 = 0;
+ FUNC_SPIHD = 1;
+ FUNC_GPIO9 = 3;
+ PERIPHS_IO_MUX_SD_DATA3_U = (PERIPHS_IO_MUX + $2c);
+ FUNC_SDDATA3 = 0;
+ FUNC_SPIWP = 1;
+ FUNC_GPIO10 = 3;
+ PERIPHS_IO_MUX_SD_CMD_U = (PERIPHS_IO_MUX + $30);
+ FUNC_SDCMD = 0;
+ FUNC_SPICS0 = 1;
+ PERIPHS_IO_MUX_GPIO0_U = (PERIPHS_IO_MUX + $34);
+ FUNC_GPIO0 = 0;
+ PERIPHS_IO_MUX_GPIO2_U = (PERIPHS_IO_MUX + $38);
+ FUNC_GPIO2 = 0;
+ FUNC_U1TXD_BK = 2;
+ FUNC_U0TXD_BK = 4;
+ PERIPHS_IO_MUX_GPIO4_U = (PERIPHS_IO_MUX + $3C);
+ FUNC_GPIO4 = 0;
+ PERIPHS_IO_MUX_GPIO5_U = (PERIPHS_IO_MUX + $40);
+ FUNC_GPIO5 = 0;
+
+ // PIN_PULLUP_DIS(PIN_NAME) = CLEAR_PERI_REG_MASK(PIN_NAME, PERIPHS_IO_MUX_PULLUP);
+ // PIN_PULLUP_EN(PIN_NAME) = SET_PERI_REG_MASK(PIN_NAME, PERIPHS_IO_MUX_PULLUP);
+
+implementation
+
+var
+ _stack_top: record end; external name '_stack_top';
+ _data: record end; external name '_data';
+ _edata: record end; external name '_edata';
+ _text_start: record end; external name '_text_start';
+ _etext: record end; external name '_etext';
+ _bss_start: record end; external name '_bss_start';
+ _bss_end: record end; external name '_bss_end';
+
+procedure Pascalmain; external name 'PASCALMAIN';
+
+procedure HaltProc; assembler; nostackframe; public name'_haltproc';
+asm
+.Lloop:
+ b .Lloop
+end;
+
+procedure Startup;
+var
+ psrc,pdst,pend: plongword;
+begin
+ // Copy .text
+ psrc:=@_etext;
+ pdst:=@_data;
+ pend:=@_edata;
+ while pdst<pend do
+ begin
+ pdst^:=psrc^;
+ inc(pdst);
+ inc(psrc);
+ end;
+
+ // Clear .bss
+ pend:=@_bss_end;
+ while pdst<pend do
+ begin
+ pdst^:=0;
+ inc(pdst);
+ end;
+
+ PascalMain;
+ Haltproc;
+end;
+
+procedure LowLevelStartup; assembler; nostackframe;
+asm
+ l32r a1, .Lstack_ptr
+
+ j Startup
+
+.Lstack_ptr:
+ .long _stack_top
+end;
+
+end.