Re: Why are Ada compilers difficult to write ?

["Dan'l Miller" <optikos@verizon.net>]

On Thursday, June 21, 2018 at 5:01:19 PM UTC-5, Simon Wright wrote:
> "Dan'l Miller" writes:
> 
> > microcontrollers and DSPs and NPs are all severely
> > resource-constrained to the point of making any Ada or C++ or Java
> > support impractical therein
> 
> Not true (for MCUs, Ada & C++ anyway).

My reply and Paul Rubin's reply were both in the context of the 8-bit microcontrollers supported by sdcc.  Which Ada complier(s) support any of sdcc's following 8-bit microcontrollers (many of which are vintage 1970s-era 8-bit ISAs)?
1) Intel's MSC51 (8031, 8032, 8051, 8052), [even wimpier ISA than an 8080/Z80, 64KiB DRAM]
2) Freescale HC08, S08 [derived from the 6808 as utilized in the Radio Shack Color Computer, 64KiB DRAM]
3) Zilog's Z80 [as utilized in the Sinclair ZX80, 64KiB DRAM]
4) STMicro's STM8 [which is arguably a 16-bit processor with 32-bit DRAM addressing and 24-bit program counter, not even remotely in the same class as resource-constrained 8-bit microcontrollers]

And the Atmel AVR RISC-processor (!) "microcontroller" doesn't count because it isn't limited to 64 KiB DRAM and single-digit or tens of megahertz like those listed above in SDCC's repertoire.  Does anyone actually use GNAT to target tinyAVR, which is the only one of the AVR line that is comparable to the MCS51, HC08, and Z80 listed above in SDCC's repertoire.